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What Is Plastic Mold Technology

What is Plastic Mold?

Plastic mold (mould) is a tool or die used in the manufacturing process to create plastic parts and products. The plastic mold is typically made of metal or another hard steel (H13, DIN1.2344, DIN 1.2343, 2083, NAK80, or similar steel) and is designed to hold melted plastic in a specific shape until it cools and solidifies.

This process is commonly used to make millions of plastic parts. These parts can have complex designs and the same shape. Other methods would find it hard or impossible to create them,Plastic injection molds are used in many industries. These include automotive, construction, home applications, furniture, electronics, toys, and consumer goods. Making plastic mold injection is very complex jobs that must be manufactured by a professional injection mold maker. Below are the simple steps to make the plastic molds.

First, the part designer must create the model you want. Alternatively, you can hire your injection mold supplier to design it based on your needs.
Second, when the part design is approved, you need to find your mould maker to come up with a completely mold design. Once the mold design has been created, you can start to manufacture the plastic mold. The plastic injection mold manufacturing process includes drilling, lather machining, wire cutting, CNC machining, EDM, polishing, etc.
Third, the last step to making a plastic mold is mould fitting. When mold manufacturing is complete, you need to do the mold fitting. This checks if the components are in the right position. Mold fitting is the only way to check mold quality and improve any possible issues in advance.
Fourth, when mold fitting is finished, the actual injection molding process can start. At the beginning of the injection molding process, we called it mold trial. From the mold trial to massive production, we still need to solve some small injection molding defects and do several mold trials because the first mold trial will more or less have some molding issues that need to be finished.

After two or three mold trials until customer approval of the samples, we could start massive production. There is a simple process to follow. It includes part design, mold design, and mold manufacturing. This helps create perfect-looking plastic products. Plastic mold manufacturing is actually a complex process. You must find a professional mold maker to make your plastic molds.

What are the advantages of plastic mold technology?

Here are some of the advantages of plastic mold technology:

High efficiency and quick production

There are many good reasons why plastic injection molding is famous as the most common and successful form of molding. The process is quick compared to other methods. Its high production rate makes it more successful and affordable. Speed depends on the size and complexity of the mold, but just about 15–120 seconds pass between each cycle.

Better strength

Strength is one of the important factors that need to be determined when designing a plastic injection-molded part. The designer needs to know if the part should be rigid or flexible. This information helps them adjust the ribs or gussets. Understanding how the customer will be using the part and what kind of atmosphere the part will be exposed to is also vital.

Finding the right balance of design considerations will help address your parts need for stability and strength. Material selection plays another important role in the strength of the part.

Reduced waste

When searching for a high-volume injection molding supplier, it is important to consider their green manufacturing efforts. These efforts show a commitment to sustainability, quality, and safety. During the molding process, excess plastic is produced. You want to look for a firm that has a system in place to recycle its excess plastic. The best eco-friendly plastic injection molding companies use advanced machines to cut down on waste, packaging, and transportation.

Low labor costs

Labor costs are generally relatively low in plastic injection molding in comparison with other kinds of molding. The ability to produce parts quickly and at a high quality improves effectiveness and efficiency.

The molding equipment usually operates with a self-gating mechanical tool. This keeps operations smooth and production going with little supervision.

Flexibility, material, and color

Choosing the right color and material for a project is key to making plastic molded parts. Due to the large range of both, the chances are almost limitless. The progress in polymers has led to many different types of resins to choose from. It is important to work with an injection molder who has experience with different resins and uses. This includes resins that meet RoHS, FDA, NSF, and REACH standards. To choose the best resin for your project, think about a few important factors. These include tensile strength, impact strength, flexibility, warm deflection, and water absorption.

If you are unsure about the best materials for your plastic molds, you can check injection molding materials. You can also contact us easily by emailing info@plasticmold.net.

What are the disadvantages of plastic mold technology?

Here are some of the disadvantages of plastic mold technology:

High initial investment costs

Quick-production injection molding needs an injection molding machine, injection plastic molds, injection molding equipment, other auxiliary equipment, etc.

The cost of injection molding machines and molds is high. This makes it a big investment. Therefore, it is not ideal for small batches.

High design requirements

To produce parts in large quantities, make sure the design is correct from the start. If you have to replace the mold later because of design problems, it will be very expensive.

High skill requirements: Making mold items depends on many factors. This means the technical skills needed are higher and harder to learn.

Injection molding machine operators need a lot of skill. They usually require 5 to 10 years of experience.

Plastic injection mold design and production workers need more technical skills. They usually require 5 to 10 years of experience.

Longer pre-production lead time is time-consuming.

The main equipment for injection molding is the mold. However, designing the mold takes a long time. Different tool-making methods and mold testing also slow down production.

Depending on the structure and size of the product idea, it generally takes 25–40 days to make the injection mold.

Once the plastic injection mold is ready, it often takes several attempts to adjust the injection molding machine settings. This process happens during the same-making stage. The goal is to find the best settings for fast production. However, this also requires some time.

When do you need plastic molds?

If this is your first item or your fortieth, you should consider using plastic injection molding. It offers great manufacturing options that you might be missing out on. o matter if you worry about accuracy, using plastic instead of metal, or cost, this list can help. We believe it will encourage you to consider plastic injection molding for your product again.

Part standard and accuracy

Plastic injection-molded parts can have high quality and accuracy as required. When using manufacturers in the U.S., accuracy is usually within 0.001 inches. Standard control measures, like ISO certification, ensure your parts are high quality and accurate, of course price will be higher than China.

Volume of production

Once the mold making for plastic parts is made, the volume of production can be scaled up or down as needed.

Cost per plastic part

After the primary cost of the injection mold, the cost per part is extremely low. Choosing the right resin will affect the cost. However, machine wear and labor costs are low. This means that costs per part are lower than other manufacturing options when production volumes are high.

Complexity of parts

Plastics and their inject molds permit greater design freedom than many other producing specs. A skilled plastic mold maker can create parts and sets of parts that require less work after they are made. This includes everything from smooth finishes to intricate designs.

Co-injection, overmolding, and double-shot

Parts don’t have to be made of one plastic. Double-shot molding and overmolding allow two types of plastic to be combined in the mold. These plastics can have different qualities, like hardness and flexibility.Co-injection molding lets one polymer be injected as the core of another. This method creates parts that are more flexible and affordable.

Market-specific materials and standards

Plastic molding technology has been around for a long time and has the tools and standards to meet different markets. For example, if you are making medical parts and need traceability, you have options. These options help ensure that every part can be traced back to its batch.

Injection molding is a process used in most plastic productions and is very preferred by different businesses and firms. This is largely because it is pretty efficient and provides uniformity in all the items manufactured using this process. To get the best results, it is best to work with a professional injection mold producer. They offer quality plastic injection molding services. This process requires the use of expertise to make sure that the products meet high standards. Your mold supplier must choose the best material to use. They also need to create a working mould design. Finally, they should make a working prototype to start the production process.

Where can I find the best plastic mold company?

Sincere Tech is one of top 10 mold manufacturers in China. We provide custom plastic injection mold and molding services worldwide. Our services can save you 40% on plastic mold manufacturing and production. We have over 18 years of experience in plastic injection mold manufacturing services and fluent technical English communication.

We 100% guarantee that your project will be successful. You will be impressed and satisfied with our quality, price, and services. We are willing to share with you some of our customers to let you verify our quality and service. Send us your requirements for a quotation; you will not lose anything but our competitive price for reference.

To protect your project from copying, we can sign an NDA document to protect your project. In the following, you will find information about plastic injection molding processes, techniques, specialized molding technology, defects, and troubleshooting solutions. Below are some of the molds we made before.

Plastic mold structure

Basically, there are two main parts in the plastic injection mold structure: the mold cavity (fixing half) and the mold core (moving half).

The mold cavity (fixing half) is the mold part that forms the outer shape or contour of the plastic part being generated. The feeding system is located at this point as well. This part of the mold is designed to define the full size and shape of the part. It is created using a reverse impression of the part to be molded using high-precision CNC machines, wire cutting, electrode discharge machining, and other machining processes.

On the other hand, the injection mold core (moving half) side forms the inside features and shapes of the plastic part being generated. It creates the inside geometry of the part, such as bosses, holes, ribs, and other specs. The mold core is also created using reverse impressions of the part with high-precision CNC machining, wire cutting, electrode machining discharge, and other machining processes, same manufacturing processes on the cavity side.

The two halves of the plastic injection mold cavity and core will be assembled into the mold base, which includes cooling systems, ejector systems, feeding systems, fastening screws, and other action mechanisms such as lifters, sliders, and other special actions.

The material used for the plastic mold structure depends on many factors, for example, the type of plastic material, the plastic mold life-time requirement, the mold budget, etc. Normally, the mold base will use S50 C, and sometimes the A and B plates will use 1.2311. Normal steel for the mold cavity and core will be P20, 1.2738H, S136H, NAK80, 1.3444, 1.3443, H13, etc.

Plastic injection molding requires a high degree of precision and accuracy, and the mold structure is crucial to achieving a high-quality finished product.

Overall, plastic mold is made of a variety of mold plates, inserts, blocks, sliders, lifters, and other metal components. Basically, plastic injection mold is composed of two halves: the fixed half (cavity side) and the ejector half or core side (see below picture), which consist of several mold plates and inserts.

Due to its easier machinability and interchangeability, the cavity is formed by inserts that are tailored to the surrounding frame plates (A/B plates).

plastic mold injection

The cavity and core inserts are generally separate blocks (some of which are made of powerful material), which are then inserted into pocket plates that are machined into the A and B plates (which are also known as cavity or core retainer plates).

The mold cavity and core inserts are located in the pocket plate and left standing above the A/B plate, approximately 0.1 – 0.5m. This leaves the shut-off area. When both fix and move closing half so that there is a little space between A&B plates, this will be an excellent fit r the cavity and core inserts.

The mould cavity and core inserts are normally separate blocks (some of which are made of solid material), which are then inserted into pocket plates that are machined into the A and B plates (which are also called cavity or core retainer plates).

The plastic mold cavity and core inserts are placed in the pocket plate and left standing above the A/B plate, approximately 0.1–0.5 mm. This leaves the shut-off area. When both fix half and move half closing so that there is a small gap between the A&B plates, this will be a better fit for the cavity and core inserts.

The mold fixed half includes (cavity side):

a: Locating ring; b: basic plate (top plate); c: guide pin; d: insulation plate (for higher mold temperatures or hot runner mold); e: fasten screw; f: frame plate or A plate (cavity if made in solid); see below picture

fixing half-cavity side

Plastic mold ejection half includes (moving half/core side):

a: guide bushing; b: locating bushing; c: supporting bar; d: bottom plate; e: frame plate or B plate (core if made in solid); f: support plate; g: support bar; h: upper ejector plate; i: lower ejector plate.

moving half-core side

Plastic mold materials

There are many types of mold steels that can be used to make injection plastic molds, including aluminum, steel, brass, copper, and many others. The below materials are some of the common mold materials used in the making of plastic molds.

Basic steel, which we use to make plastic molds:

P20 (1.2311): This is a versatile, low-alloy mold steel with HRC 33-38, which is used a lot for the low- to middle-volume injection mold. This steel has good toughness and machinability. Some time used as A and B plates, and ejector plates as well.
H13 (1.2344, 1.2343), S136: Those are excellent heat resistance steels, those steels normally used for high volumes of injection mold that require a mold life of over 1 million shots or more. This is a very tough, low-hardness steel used for high-quality cavity and core requirements. The hardness of those steels can be hardened to HRC 48–60 degrees.
303 Stainless Steel: This material is known for its corrosion resistance and machinability. It’s suitable for molds used in less demanding applications.
420 Stainless Steel: Offering higher hardness and wear resistance compared to 303 stainless steel, 420 stainless steel is used for molds where abrasion is a concern.
Aluminum Alloys: Some aluminum alloys are used for prototype molds due to their lightweight nature and good thermal conductivity. The normally used aluminum alloys are 7075 and 6061.
Beryllium Copper Alloys: These alloys, such as C17200 and MoldMAX, exhibit high thermal conductivity and excellent corrosion resistance. They are used in molds that require rapid heat removal, especially for some of the deep ribs, which are not possible to add a cooling channel to or are not easy to cool during molding.
718H (1.2738H) and 2738HH: Those are pre-hardened steels that have a hardness of HRC 28–40, which provides moderately high hardness and good machinability. It is used primarily for cavities and cores, as well as stripper plates. The mold life of those steels is around 0.5 million shots or more.

When selecting the steel for a plastic mold, you may wonder which material you should use. Then, you need to think about some factors, such as the type of plastic material being molded, the expected production volume, the required mold life, and cost considerations. Additionally, the surface finish is also an important factor in selecting the right mold material. When you have a project that requires plastic mold, find professional mold manufacturers in China that will solve your issues quickly, correctly, and at a at a competitive price.

What Is Plastic Molding Technology?

Plastic molding technology is the process of pouring liquid plastic into a mould or die cavity so that it hardens into a customized shape. These plastic molds can be used for a wide range of purposes. and it is a cost-effective process to produce millions of uniform-shaped plastic products.

There are typically five types of molds: compression moulding, extrusion moulding, injection moulding, blow moulding, and rotational moulding. We look at the details pertaining to each of these techniques so that you can decide which one will be the most successful for you to use.

Extrusion moulding

With extrusion molding, warm, melted plastic is pressed via a shaped hole to make a lengthy, shaped plastic part. This customizable shape that the liquid plastic gets pressed into is known as a die. This die is custom-made for the particular outcome that is wanted. It is almost like pressing dough through a press to make cookie-shaped cookies.

Compression moulding

This technique involves liquid plastic being poured into a warmed mould and then being compressed to form the desired shape. The high temperature of the full process ensures the best strength in the end product. The process is finished off by chilling the liquid plastic so that it keeps it from being trimmed and removed from the mould.

Blow moulding

With blow moulding, the custom plastic parts come out thin-walled and hollow. This technique is perfect for when the plastic part has to have a uniform wall thickness. This is extremely similar to the process of glass blowing.

Injection moulding

Injection moulding is quite similar to extrusion moulding. The difference here is that with injection moulding, the melted plastic is injected straight into a custom mould. The injection is done under high pressure so that the mould is packed with a powerful force. As with the other technique, after the mould is packed, the plastic is chilled to keep its new shape, then the mould is opened and the ejector system is used to eject the part out of the mold cavity, then the next cycle continues.

Rotational moulding

Also sometimes known as rotomoulding, this technique involves the liquid or resin being placed inside the mould and then being rotated at high speeds. The liquid then evenly covers the full surface of the mould to create a hollowed part with all the walls evenly thick. After the mould is chilled and the liquid plastic has taken on its fresh form, it is taken out of the mould.

The future of plastic injection molds

The industry of making plastic parts continues to grow thanks to the latest ideas and processes. These creative plastic injection moulding techniques give manufacturers and businesses new ways to mass-produce plastic parts. Here are some new innovations in plastic injection molding that may help your business and make production more efficient.

Micro-injection molding

As technology advances, our equipment and devices grow smaller for easier storage and handling. Many firms and industries keep innovating by creating new designs every year with more compact dimensions. Little plastics are famous in many fields, and using micro-injection molding is the best way to fulfill that need.

The phone and computer industries benefit from micro-injection molding since they use smaller plastic molds for newer phones and computer gadgets. The medical field also uses small medical devices for patients, such as portable IV pumps.

Injection transfer molding

Transfer molding is the process of making similar injection-molded items simultaneously. Injection transfer molding takes it a step further by using the typical injection molding process and a plunger to press the resin into two or more molds.

The mold would cool simultaneously and eject for a quicker rate of production. This process gives the extra benefit of creating a uniform look across different molded items, such as plastic tube plugs.

Structural foam molding

A big innovation for injection molding is structural foam molding. This process gathers injection molding and gas-assisted injection molding by creating foam comprised of gas-like nitrogen and plastic resin. The combination turns into foam upon injection and expands. The result is an interior of foam and a shell of hard plastic material.

This foam combination makes it easier to make hard shapes and reach small portions of the mold. Plus, it creates powerful plastic. The inside of the plastic is hollow, while the exterior is powerful and detailed, depending on the mould.

Gas-assisted injection molding

Certain injection molds have hard designs and little space to fill. These little spaces make molding a full plastic piece hard since the resin may not reach it. Gas-assisted injection molding makes sure that resin reaches the small portions of the mould by injecting pressurized gas into the fluid while the resin cools.

The gas will release after chilling finishes, and the part will eject from the mold. This innovation in plastic injection moulding is a remarkable way to make hard plastic parts and make sure the plastic surface is powerful since the gas causes it to expand.

What type of materials are used in plastic molding technology

Plastic injection molding is compatible with lots of plastic materials, so its products are common in every industry and household. It is virtually impossible to cover all of them in one write-up. We have hand-picked the most famous ones.

Acrylic (PMMA)

Poly, better known as acrylic, is a thermoplastic material that has perfect mechanical strength, is lightweight, and has a clear, view-through look. Although not ductile, it has the best shatter resistance.

Additionally, one of its largest strengths is its ease of mechinability. After injection molding, acrylic parts are easy to finish and alter. go to PMMA injection molding to lear more.

PMMA has a few issues worth noting. Firstly, it is prone to scratching, which not only affects its clarity but also its full look. Additionally, PMMA has a tendency to accumulate greases and oils, further impacting its surface and clarity properties. Lastly, it exhibits bad performance in high-temperature conditions.

Acrylonitrile Butadiene Styrene (ABS)

ABS is one of the most famous injection molding materials. It has the best toughness and strength, chemical resistance, impact resistance, oils, and bases. It is fully opaque and can be injected-molded in many colors. On top of this, ABS is pretty cheap compared to other plastic injection molding materials on this list. learn more about ABS injection molding.

Polycarbonate (PC)

PC has remarkable toughness, impact resistance, and shatter resistance. It has a transparent look. Additionally, it has the desirable standard of maintaining its mechanical features and looking for a wide temperature range. Thus, it runs well in high-temperature atmospheres.

It does have remarkable optical clarity, oftentimes better than glass. This makes it a very famous injection molding material for producing helmet visors, goggles, and protective machine shields. learn more about polycarbonate injection molding.

Polystyrene (PS)

PS is one of the few injection molding materials that is very famous. It is amazingly lightweight, has chemical reactions, resists moisture, and is very perfect for injection molding due to its uniform thermal shrinkage inside the mold.

PS is used to make items like appliances, toys, containers, etc. It also enjoys a unique position in the medical equipment industry as it does not degrade with gamma radiation, the initial technique to sterilize medical equipment. Thus, equipment like culture kits and Petri dishes is injection molded with PS. check more about PS injection molding.

Thermoplastic Elastomer (TPE)

TPE stands out among injection molding materials in the sense that it is a plastic-rubber blend. It gathers the benefits of both materials. It is flexible, can be stretched to strong, long lengths, and is recyclable.

Additionally, its big benefit is that it’s affordable among most rubber alternatives. Lear more about TPE injection molding.

It is, anyway, not perfect for use in high temperatures as it loses some of its material features. Additionally, it should not be stretched too much for too long, as it is susceptible to creep.

**What is the cost of plastic molds and plastic injection molding products?**

The cost of injection plastic molds and the cost of injection molding products can vary greatly depending on a number of factors, including the size and complexity of the mold, the type of plastic being used, the production volume, and the lead time for production.

These elements, as well as any additional costs for finishing, packaging, and shipping, have an impact on the price of the finished plastic injection molding product. It’s important to work closely with a manufacturer to understand all the costs involved and to get a clear estimate before beginning production.

Below, we will give you some guides on how to get a plastic mold price and a plastic molding price from your mold supplier.

plastic mold

1. How do I get a price for export plastic mold or tooling?

What is an export plastic mold? Which means you will buy the mold only; once the mold is completely finished and ready for massive production, you will take the mold back to your country or your specified manufacturer to mold the parts.

To get a price for export injection plastic mould, there are a few things that you are going to provide to your mould supplier. In order to make sure that you have given the manufacturer all of the information that they need to check the price accurately, below are some key points for mold price estimating. This is the most important information for export molds.

First of all, send the 3D drawing (STP or IGS format is better) to your mold suppliers. If you do not have the drawing, then you need to have some pictures of a sample with an approximate part size and show your supplier that part structure.
Second, you need to know how many shots of the mold you require, for example. 0.5 million shots of a lifetime or 1 million shots of a lifetime requirement, because those two requirements will cause a different price.
Third. The number of cavities: you need to specify how many cavities you need for your mold. Because one cavity and multiple cavities have totally different prices, the single cavity is cheaper than the multiple cavities mold. Because this will affect the mold price as well, if you are not sure, you can ask your supplier for some suggestions.
Forth. Is it a cold runner or a hot runner that you require for your mold? If a hot runner, what brand of hot runners? YUDO, INCOE, etc.—all of that information will have different prices, so you need to specify your requirements. You could still ask your mold supplier for some suggestions as well.

The above items are very import information to get tooling costs for export mold because all of the information will change the mold price. You are welcome to contact us if you need any support.

2. How to get a price for injection molding products

If you only need plastic molding parts, then you only need to tell us (or another plastic molding company) what the plastics will be, how many parts you need per time, what the surface requirements are, and the colors of the parts, and they will take care of the rest for you.

To get the cost of plastic injection molding products, it is much easier than getting the cost of exporting plastic mold. Simple steps as below make getting the plastic injection molding service price easy.

What will plastic be? for example, PP, PA66, ABS, PC, PMMA, PC/ABS, PEEK, PPS, etc.
What color do you require for your molding parts? There are lots of colors; you could take a color reference from pantone color.
What is the part surface requirement? Texture (graining or matte) or high polishing? The texture code could take references from VDI 3400.
3D part design (STP or IGS format file will be great for all of the companies); if you do not have a 3D part design, then send your sample pictures with part size and part weight, or an idea picture and explain it to us, and we can still get the price for you.
How many parts do you need per time?
Do you have any special function requirements?

With the above information, you will get a very competitive local mold/tooling cost (at least 40% lower than others) and unit injection molding cost from our side. That information is an important factor in estimating the plastic injection molding cost. Otherwise, any price will not have any references.

Plastic Molds, Molding Defects and Troubleshooting

The quality of the plastic mold is as important as the molding process. The plastic molding company you choose to help you with your product will eventually fight common molding issues. If you have high-quality plastic molds and a good plastic injection molding process, that will bring out the kind of results you expect from the end product.

Molding defects appear in the plastic mold; they can be attributed to the type of raw material used in the plastic injection moulding process, as well as the quality of the plastic mould, injection molding process skill, injection molding machine, etc.

Fortunately, by processing and preventing injection molding defects and using these approaches, mold manufacturers can create high-quality injection plastic molds. Once you have a high-quality mold, all other issues are easy to solve.

To make high-quality plastic mold, you must know how to solve this molding issue. Of course, find good mold suppliers; they will indeed solve this issue for you. Blow are some troubleshooting tips to solve the common molding defects, such as weld lines, etc., and ultimately get high-quality molded parts. There are some key defects that most happened during the mold manufacturing and molding process.

Flow marks

1. Flow Marks

This molding defect normally happens close to the gate area and the joint area (joint line or weld lines), which some people call flow lines, common in narrow sections of components and may be considered minor or serious defects depending on the part wall thickness and expected use.

In order to solve appearance flow line defects, during the molding process we need to increase the injection speed pressure, molten material temperature, and mold temperature. Increasing the gate size or changing the location of the gate is also helpful (last option). Below the right picture of flow mark defects, we increased the gate size to improve flow marks because the wall thickness was too thick (7mm).

Dull areas

2. Dull Areas

The most common is a dull concentric ring that can appear around a halo-like sprue. This usually occurs when the material flow is poor and the viscosity is high. Contrary to what many think, this is not a packaging defect, but a defect that occurs at the beginning of the billing cycle.
To minimize the possibility, the injection rate profile should be adjusted to ensure a uniform flow front speed throughout the filling phase.

It is also helpful to increase the back-pressure and barrel temperature of the screw to reduce dull surfaces resulting from lower melting temperatures. Increasing the mold temperature can also reduce this issue. But there must be a cooling system in the feeding area, especially if it is a hot-runner system; otherwise, it is not easy to solve this issue. For dull surfaces generated by design-related issues, this can be improved by reducing the radius between the part and the gate.

3. Burns Mark defects

The burn marks are defects often seen on plastic injection molding parts and look like a light yellow or black discoloration. This may be a minor defect due to excessive melting temperature, overheating in the presence of trapped air, and excessive injection speed.

Burn marks

Corrective actions for this type of burn mark issu: include reducing temperature, reducing cycle time, and reducing injection speed. Plastic mold manufacturers must also ensure that they have the proper gate size and gas vent gloves to resolve the trapped air problem that leads to this defect.

Because the air trap issue is the most common reason for this burn mark issue and could never be completely solved by adjusting the molding process, To mark defects, adding venting is the best solution, like increasing the venting grove, adding venting inserts to the deep ribs, etc.

4. Gloss difference defects

Gloss differences on textured surfaces tend to be more pronounced, and even if the surface texture is uniform, the gloss of the part may appear irregular. This is a problem that occurs when there is insufficient replication of the mold surface in some areas, and sometimes there are lots of ribs at the core side that can increase the gloss change issue on the textured surface.

It can be corrected by increasing the melting temperature, mold temperature, or holding pressure. The longer the holding time, the more likely the mold surface will be replicated accurately. If the design of the ribs caused this issue, to improve this issue, we can add some radius to all of the ribs. This will reduce the internal stress so that the textured surface can be improved as well.

5. Warping defects (deformation)

Plastic molding parts have warping defects that are normal, especially the long-size molding parts; distortion defects are hard to solve. Improving the mold design is the mean solution, but it is very limited to solving this issue by adjusting the parameters of the molding machine. The reasons and solutions to improve warping and distortion are listed below for reference.

Deformation issue

When the deformation is caused by the residual stress of the molding process, it can reduce the injection pressure and increase the mold temperature to improve it.
If the deformation caused by parts sticking can improve the ejection system or add more draft angle to solve this issue,.
If the warping defects are caused by a poor cooling channel or a poor cooling time, we can add more cooling channels and increase the cooling time to improve this. For example, we could add more cooling water to the deformation area to improve the warping defects, or we could use different mold temperatures for the cavity and core.
If the distortion issue caused part shrinkage, to solve this warping defect, we must adjust the mold design. Sometimes we need to measure the distortion size from the molding part and do the pre-deformation design on the part. The resin has a large shrinkage rate; usually, crystalline resin (such as POM, PA66, PP, PE, PET, etc.) has a higher warping rate than amorphous resin (such as PMMA, polyvinyl chloride (PVC), polystyrene (PS), ABS, AS, etc.).
Sometimes the gloss fiber material has more deformation issues as well. This is the hardest solution because you may need to adjust the part design two or three times to completely solve this issue, but this is the only way to solve the distortion issue.

6. Short shot defect

A short shot means not completely filling the mold; this molding defect normally happens at the end of the filling area, the end

Short shot defects. after adding venting inserts, the defect completely solved

of the rib, or some thin wall area. There are some reasons to cause this defect below.

The mold temperature is too low. When material fills in the mold cavity since the mold is too cold, the liquid material is not able to fill to the end of the part or some deeper ribs. An increase in mold temperature could solve this molding issue.
The material temperature is too low. This issue could also cause the short shot issue; this reason is similar to the issue of low mold temperature. To improve this issue, we can increase the melt temperature of the material to solve this molding defect.
The injection speed is too slow. The injection speed is directly related to the filling speed. If the injection speed is too low, the liquid material filling speed will be very slow, and the slow flow material will be easy to cold. This will cause the material to get cold in advance. To solve this issue, we could increase the injection speed, injection pressure, and holding pressure.
Venting issue. This is the most common molding defect we meet during the mold trial; all other defects could be solved by adjusting the molding parameter. If short-shot issues are caused by a venting issue, the best solution is to find a way to release the air out of the cavity. Sometimes reducing the clamping force can help a little, but it is not able to completely solve these defects.
If the air is stuck in the cavity or in the dead-ending area (the end of the ribs, for example), the short-shot issue will happen in that area. To troubleshoot this issue, we need to increase the venting grooves on the parting line and add a venting insert to the dead-ending spot to guide the air out.

7. Sink mark: It is a sink mark on the molded part caused by unbalancing plastic material shrinking in the mold cavity. It looks like there is a lack of material in that sink area that does not match the part geometry. This issue happens to the thick wall area or lack of cooling system in the mold. The mean reason to have this sink mark issue is the uneven wall thickness on the part design.

If some ribs or some area have a thicker wall than the other place (rib thickness should be around 1/2–7/10 max of the mean wall), then this thicker area will be easy to have a sink mark issue. Below are some suggestions to improve this defect.7. Sink mark: It is a sink mark on the molded part caused by unbalancing plastic material shrinking in the mold cavity. It looks like there is a lack of material in that sink area that does not match the part geometry. This issue happens to the thick wall area or lack of cooling system in the mold. The mean reason to have this sink mark issue is the uneven wall thickness on the part design.

Sink mark

Change the gate location to be close to the thick wall.
Add more holding pressure and holding time, and inject more material into the mold cavity. When using this method, you need to double-check that the part dimension is still within the tolerance requirement.
Increase the cooling time and the cooling channels to improve this issue. Plastic shrinkage rate is normal. If the cooling time is too short and the part is still warm after the mold is opened, then the part shrinks quickly without any cooling system. This will make it easy to have a sink mark. Increase the cooling time until the plastic injection molding part completelycoolsl in the mold cavity, and this defect will be solved.
If the part design has a serious thick wall on some of the ribs or bosses, to solve this issue, we need to improve the part geometry and add some inserts to the thick area to reduce the wall thickness. This issue could be solved. For this unbalanced wall issue, we could use software to analyze it and prevent it in advance. Before mold manufacturing, we will make a fully DFM report and send it to our customers for approval. Below are sink mark analysis report samples.

Are you ready to start working on your new project and search for your plastic molding facotry? If yes, then let’s go. For your plastic molding project, finding a reliable Chinese mold company is more important. Because this will bring your market up very quickly, and you will win more profits on your project with less cost,

Today, over 80% of big companies are sourcing goods from China. Like the iPhone, some other famous companies buy things from China. So what are you worried about? If you are ready, then speed up to open your market immediately and share your profits.

SINCERE TECH is a one of top 10 plastic injection molding companies in China that offers all in one service worldwide, those service include products development and design, prototype, testing, PCB design and soldering, mold/die casting design and manufacutring, massive production, surface finish, certificate, assembly, final inspection, and packing, we have manufacutring comapny and compeletely goods assembly facotry. We guarantee you will be 100% happy with our service and quality.

We have a very professional technical team to handle your project very carefully and make the perfect plastic molds and parts for you. Some of our customers have moved the molds to our factory for troubleshooting since their current plastic mold supplier is not as professional as us. We can send you some of our current customers for you to verify our service, quality, and price.

Send us an email at info@plasticmold.net to get a price. We will never share your design with others. We are willing to sign an NDA to protect your project.

2023年1月30日/0 Comments/by admin

Injection Molding Cleanroom, Injection molds, plastic molding, plastic molding company, Plastic Molding Parts Manufacturing

Injection Molding Cleanroom

What is Injection molding cleanroom

Injection molding cleanroom refers to a controlled environment specifically designed and maintained for the manufacturing of plastic components using injection molding processes. These cleanrooms are essential for industries that require high levels of cleanliness and precision, such as medical, pharmaceutical, electronics, and aerospace sectors.

Key characteristics and features of an injection molding cleanroom include:

Cleanroom Classification: Medical Injection molding cleanroom adhere to specific cleanliness classifications based on international standards, such as ISO 14644-1. These classifications determine the allowable limits of airborne particles per cubic meter of air, ensuring a controlled environment with low levels of contamination. Cleanrooms are typically classified as ISO Class 5 or higher for injection molding applications.
Environmental Control: Injection molding cleanrooms incorporate advanced environmental control systems to maintain the desired cleanliness levels. These systems typically include high-efficiency particulate air (HEPA) filters, air pressure differentials, and temperature and humidity control to minimize the presence of airborne particles and ensure optimal manufacturing conditions.
Gowning and Personnel Hygiene: Strict gowning procedures and personnel hygiene practices are enforced within injection molding cleanrooms to prevent contamination. Cleanroom personnel are required to wear specialized garments, including cleanroom suits, gloves, masks, hairnets, and shoe covers. Handwashing and sanitization protocols are rigorously followed to maintain cleanliness.
Material Handling and Preparation: Raw materials used in injection molding are handled and prepared within the cleanroom environment to prevent contamination. Controlled storage and transportation of materials are implemented, and specific protocols are followed to maintain material cleanliness. Material drying, conditioning, and mixing may also be conducted in dedicated cleanroom areas.
Cleanroom Equipment and Machinery: Injection molding machines used in cleanroom environments are designed and maintained to meet the cleanliness requirements. These machines may feature additional enclosures, laminar flow hoods, or barrier systems to minimize the risk of particle generation during the molding process. Regular cleaning and maintenance of the equipment are essential to uphold cleanliness standards.
Mold and Tooling Preparation: Molds and tooling used in injection molding are prepared and maintained within the cleanroom environment. Proper cleaning procedures, including solvent cleaning, ultrasonic cleaning, or specialized cleaning agents, are employed to eliminate contaminants. Mold storage and handling are carefully managed to prevent particle accumulation.
Process Control and Quality Assurance: Injection molding cleanrooms implement stringent process control measures to ensure consistent quality and minimize defects. Critical process parameters, such as temperature, pressure, injection speed, and cooling time, are closely monitored and controlled. In-process inspections, dimensional measurements, and quality checks are performed to verify product quality and compliance with specifications.

Injection molding cleanrooms are crucial for industries that demand high-quality, precision-molded components. By providing a controlled and clean environment, these cleanrooms minimize contamination risks, ensure product integrity, and meet stringent regulatory and industry standards. The combination of environmental control, personnel hygiene, material handling, and process control measures in an injection molding cleanroom contributes to the production of reliable and high-quality plastic components.

Sometimes a Plastic mold company is looking for good niche products that related their business and they could earn more profits. Such was the case for SINCERE TECH a well-known plastic mold manufacturer that is now inverted molding shop in a 5,000 -sq Class 10,000 injection molding cleanroom which is especially for medical injection molding service.

injection molding cleanroom

Located in Dong Guan China, a small town in the Dong Guan City of China near the Shenzhen airport, SINCERE TECH has a reputation for complicated, high-precision molds, medical molding, automobile mold and a particular specialty in multi-component molds. After 2000 China has become mold manufacturing country on the world and lots of tool-making companies started their mold business, in 2005 the SINCERE TECH started plastic mold manufacturing business to make export molds, primarily of shorter runs for customers of its tool-making business.

Staying with what worked, when SINCERE TECH was set up as a plastic molding facility by a wall divided from the plastic mold making shop, it was designed around what the mold customers were doing. That way it could handle customers’ short lead time, benefits for mold maintaining, and so on. Since molds were mostly made for technical and multi-material or colored parts, the molding company configured with high-precision injection molding machines and multi-component technologies. Molding presses range from 60 to 2000 tons and include two-shot injection molding machines. you can go to our double injection molding parts page.

Medical Plastic Injection Molding Products Needs Injection Molding Cleanroom

Several of our customers were in medical equipment which needs medical molding parts, automotive industry, health care industry and pharmaceutical manufacturers. to provide a custom solution for all of our customers, ST decided to set up an injection molding cleanroom manufacturing (for medical injection molding service) operation at a Class 10,000 level with turbulent airflow. Plastic molding parts made include dialysis machine components, medical machinery components, closures for PE infusion bottles, and medical plastic caps and some of other medical injection molding parts

medical plastic parts

The ways of using injection molding machines in a cleanroom environment are too numerous to count. There are hoods over individual machines, machines completely in the cleanroom environment, and machines partially in the molding cleanroom itself.

ST decided to put only the clamp end of the machine in the clean room injection molding, “We considered the particular characteristics of the machines in all our planning.” ST chose some of the high precision Series injection machines, including 65-, 80-, and 110-ton machines to cover its product range, this machines seems working perfectly as we thought at the beginning,

Full-service Plastic mold making, normally molding and Cleanroom

ST did not set up the injection molding cleanroom to simply molded parts. That would not have fit with the level of service expected by the medical plastic molding requirement of customers. Such customers generally specify medical degree for all of the molding equipment, packing, assembly, and shipments, to complete this task, ST operates an assembly room within the Class 10,000 cleanroom so that the finished product leaves in hermetically sealed packages ready for shipping.

For normal requirements, we have a range of machines from 80 tons to 2000 tons to produce a wide range of products for our customers.

This quality and service have led the business more growth, in both the cleanroom business and the rest of the molding operation referred to as the Technology Center. Today our plastic molding company area increased from 6,000 sq to 12,000 sq. The cleanroom is expanded from 2050 sq to 4400 sq

At Sincere Tech China mold manufacturer, we understand the importance of custom injection molding and its role in achieving manufacturing excellence. With our expertise in the field, we offer top-quality custom injection molding services that meet the highest industry standards. Our team of skilled professionals, state-of-the-art equipment, and commitment to innovation ensure that we deliver exceptional results for your specific needs.

When you partner with us, you can expect a seamless and efficient manufacturing process. From the initial design phase to the final production, we pay meticulous attention to detail, ensuring that every product meets your exact specifications. Our experienced engineers work closely with you, providing valuable insights and recommendations to optimize the design for injection molding, resulting in cost-effective solutions without compromising on quality.

We leverage the properties of plastics material to create products that are not only good surface finish but also tight tolerance. This translates to reduced waste rate costs, improved energy efficiency, and enhanced user experience. Whether you require consumer goods, automotive components, electrical enclosures, medical devices, or industrial parts, our custom injection molding capabilities cater to a wide range of industries and applications.

At Sincere Tech Plastic Mold company, we are committed to staying at the forefront of the industry and embracing future trends and innovations. We constantly explore advanced materials and composites that offer enhanced performance and sustainability. Our continuous investment in research and development enables us to offer cutting-edge solutions that meet the evolving needs of our customers. We are one of the best mould suppliers in China.

Furthermore, we are dedicated to environmentally friendly practices. We actively seek out sustainable alternatives, such as biodegradable polymers and recycling initiatives, to minimize the environmental impact of our manufacturing processes. By choosing our custom injection molding services, you can align your brand with sustainable manufacturing practices and contribute to a greener future.

Quality is our utmost priority, and we adhere to stringent quality control measures throughout the entire manufacturing process. Our state-of-the-art facilities and skilled technicians ensure that each product undergoes rigorous inspection and testing, guaranteeing exceptional performance, reliability, and customer satisfaction.

Partner with Sincere Tech China mold maker for your custom injection molding needs, and experience the highest level of professionalism, expertise, and innovation. We are dedicated to helping you bring your ideas to life, delivering superior products that excel in performance, durability, and cost-effectiveness.

Contact us today to discuss your project requirements and discover how our polypropylene injection molding services can elevate your manufacturing processes to new heights. Together, let’s unlock the full potential of polypropylene and create exceptional products that shape the world around us.

Still have a question? Welcome to contact us and send us an email.

2020年2月2日/by admin

China mold, injection molding toys, Injection molds, molding toys, Plastic Building Blocks, plastic molding company, plastic toys, silicone toys

How To Make Plastic Injection Molding Toys

What is plastic injection molding toys?

Plastic injection molding toys are plastic toys that are molded by plastic injection molding manufacturing technology. This plastic mold technology can produce millions of identical plastic molding toys with a high degree of precision and accuracy. To save the plastic toy unit cost, the injection molding process will be one of the best manufacturing methods produce a wide variety of plastic molding toys. including those that are popular during the holiday season.

This process involves injecting molten plastic into a mold, where it is cooled and solidified into the desired shape. Injection molding is an efficient and cost-effective way to mass produce plastic toys, and it allows for a high level of customization and design flexibility.

As Christmas approaches, many parents and gift givers start to think about what toys they will be buying for the children in their lives. Plastic injection molding toys can be a great option for a number of reasons. Here are just a few:

Durability: One of the biggest benefits of plastic injection molded toys is that they are extremely durable. Unlike toys made from other materials, such as fabric or paper, plastic toys can withstand rough play and accidental drops. This makes them a great choice for children who are known to be hard on their toys.
Safety: Safety is always a top concern when it comes to children’s toys. Plastic injection molding toys are made with high-quality materials that are free of harmful chemicals and toxins. This means that they are safe for children to play with and handle.
Variety: There is a virtually endless variety of plastic injection molded toys on the market. From action figures and dolls to educational toys and puzzles, there is something for every child’s interests and age group.
Customization: Injection molding allows for a high level of customization when it comes to toy design. Companies can create custom molds for their toys, allowing them to create unique and one-of-a-kind items that stand out on store shelves.
Affordability: Plastic injection molding toys are often more affordable than other types of toys. This makes them a great option for parents and gift givers who are working with a budget.

If you are considering purchasing plastic injection molded toys for the holidays, there are a few things you should keep in mind:

First, be sure to choose toys that are appropriate for the age and interests of the child you are buying for. It is also important to pay attention to any safety warnings or age recommendations that come with the toy.

In addition to these considerations, you may also want to think about the environmental impact of the toys you are purchasing. While plastic injection molded toys are durable and long-lasting, they can still end up in landfills if they are not properly disposed of. To help reduce waste and protect the environment, consider purchasing toys that are made from recycled materials or that can be easily recycled once they are no longer being used.

Important cost for injection molding toys.

Before making injection-molded toys, you need to have toy molds according to your custom toy design; this is the initial mold cost for your toy project. The plastic toy mold is made of metal and is divided into two parts: the moving half, known as the “cavity side,” and the fixed half, the “core side.”

The cost of injection molding toy molds depends on the toys size and design complexity and the number of toys you plan to make in one injection mold. The basic cost for injection molding toys will be around $500 to $10,000, or even more. You can go to the How Much Does an Injection Mold Cost page to know more about the cost of injection molds.

Once the toy mold is completely finished, fasten the toy mold into an injection molding machine, which we call the molding process, which heats plastic pellets in a hopper until they melt. The molten plastic is then pumped into the toy mold under high injection pressure, and as the plastic cools and hardens inside the mold cavity and core, it becomes the shape of the toy. After the plastic has cooled and become solid, the mold is opened and the toy is extracted.

This is a basic plastic molding procedure for toys that may be done several times to create multiple identical toys. Below is basic injection molding, in which the same process is used to produce the injection molding toys.

Basics of plastic injection molding procee for molding toys

The basics of plastic injection molding involve melting the chosen thermoplastic down to a liquid state within a hopper, then injecting it into a mold until it is dry and is able to be popped out and sent on down the assembly line for painting, staining, or further assembly if it is a toy with numerous parts. It is also possible to insert numerous colors of plastic into the same mold so that no additional coloring process is necessary afterward, a tricky and impressive process that saves both time and money. Santa is a big fan of efficiency; particularly considering he delivers toys all in one night.

Not only are classic plastic toys produced by plastic injection molding processes but gifts that Santa would bring for teenagers and adults can also be partly produced by various injection molding processes. For example, electronic gadgets such as iPads have a plastic cover on them that would be quickly and easily mass-produced by way of plastic injection molding. Other items would include office supplies such as the bodies of pens, movie covers, pill bottles, make-up containers, and many other items that could all be given as gifts at Christmas.

Overall, plastic injection molded toys can be a great option for the holidays. They are durable, safe, and offer a wide variety of options for children of all ages. Just be sure to choose age-appropriate toys and consider their environmental impact when making your purchase.

If you are looking for any plastic molding toys or Plastic Christmas Toys for your business, send us your requirement for quotation, we offer you the best price for any of your custom plastic molding toys or Plastic Injection Molded Christmas Toys.

Plastic molding toys

Are you having a challenge in finding plastic toy mold manufacturer to manufacture your injection molding toys? This review is a guideline on how to find an injection molding toys manufacturer.

How to find a plastic molding toys company?

If you are going to make some silicone toys or injection molding toys, the first thing you need to do is find injection molding toy factories.

Below there are three ways in which you can find toys mold/molding manufacturers;

Sourcing plastic molding toys factories online

There are so many websites that you can search and find plastic molding toy manufacturers online. As we are living in a digital world, finding a manufacturer is a click or a tap away. The suggestions online are very many, so you will choose one that serves you best and has good terms. First, you start by consulting them on the price they do manufacture. Then you will compare them all, and the best choice is to hire the one with a fair price or the lowest price.

We made many type of plastic injection molded toys, contact us to get a quote now.

Moreover, the terms of the payment method are another factor to consider before you pick the manufacturer. You need to consider manufacturers whose terms and methods of payment are available and transparent to you.

After getting the price quotation, you need to ask the toy mold/molding manufacturer to send you samples of the work they have done before. Here, you will be trying to identify the one with unique and quality products. Quality is a key consideration, as you need a toy product that will last for a long time. Being unique is also a factor in avoiding monotony and commonness.

Finally, you need to know the minimum order quantity of manufacture so as to identify if the plastic toy manufacturer is within the boundaries of your order. Some manufacturers’s minimum order quantity is way too high for you to meet it. This is the easiest and most convenient way.

Find a professional plastic molding toy source agent.

Another way to find a plastic molding toys mold manufacturer is by finding a professional source agent. The agents mostly have information on suggestions based on years of experience according to your specifications and requirements.

What the agents do is act as an intermediary between you and the manufacturer. You give them your quotation and the specific requirements you need, and they will recommend you manufacture from their wide source of information and experience.

The agents do all the work for you by sourcing the injection molding toys manufacturers for you and linking you to the manufacturers. After the professional agent sources the manufacturer, they will advise you on the best way to make payment and get your products delivered to you within the specified period.

The only problem with this is that there will be an additional fee for the professional source agent. Again, they can recommend a manufacturer who will not deliver quality work, as they act as brokers between you and the manufacturer. This is a way to find manufacturers by those who are busy and committed to finding them by themselves. I assume everyone would rather deal with the business directly with the plastic molding toys company to save cost, but this is still an idea.

Looking for mold suppliers to make injection-molded toys for you? Contact us to get a quote for your injection-molded toys.

By attending an exhibition to find a plastic injection molding toys factory

Attending a plastic injection molding toys exhibition can help you find a toy manufacturer. The method is very convenient, as you get to see the sample the manufacturer has made and the price they do offer. Additionally, you get a chance to talk face-to-face with different manufacturers and interact on a personal level.

You could ask them about the quality of the product and why their toys product is better than others in the market over the competitors. Here at the exhibition, you gain more knowledge about the product and get to decide which manufacturer to choose, considering their product quality, price, duration of manufacturing, minimum order quantity, and method of payment.

The best thing about attending an exhibition is that you can find a plastic molding toys manufacturer who is giving a commission and save yourself some money. Attending an exhibition gives you a chance to ask for a recommendation from professionals who have no business interest in the product. Attending an exhibition is the best way to find a manufacturer to manufacture your toys at affordable prices with the best quality and offers.

Conclusion

Apart from these three ways, there is another way to find an injection plastic molding toy factory, where you ask for a recommendation from people who are in the same business. The challenge with this is that some recommendations can be biased depending on personal or business interests. You can also ask for recommendations from your friends.

The most recommendable way is to source online or ask for a recommendation from your friends.

Sincere Tech is one of the top 10 injection molding toys companies in China that makes lots of plastic molding toys and silicone toys for toy companies. Some of these plastic injection-molded toys include custom plastic building blocks toys, car molding toys, train mold toys, plastic roof toys, plastic lifter toys, plastic doll toys, etc.

If you are looking for contract injection molding toys factories from China to make your plastic molding toys or silicone toys, contact us to get a price. We will solve your issue from toy design, prototype, massive production, assembly, and packing, all in one-stop service.

2019年7月3日/by admin

Injection molds, plastic injection mold, plastic injection molding, Plastic Injection Moulding China, Plastic Mold Companies, plastic molding company, Plastic Molding Parts Manufacturing, plastic molding service

How To Buy Plastic Injection Mold and Molding Parts From China

China has become a major destination for Plastic Injection Mold and molding parts service. Lower prices are the primary incentives for many foreign buyers. The majority of foreign buyers find challenges sourcing plastic injection molding from China. The major strains are on how to buy, how to evaluate quality, or how to identify a reliable source.

Many things go wrong in case of compromise in the purchase process. For example, delayed delivery, frauds, low quality, weakness of communication (both on language and technical), and other problems may be encountered. To avoid such frustrations, the following is a process of how a buyer would purchase plastic injection molding from China. Hope this could help you find your best suitable supplier

Identify a Reliable Plastic Molding Manufacturer

Currently, there are many mold manufacturing companies in China. You need to determine which supplier is reliable. Some of the factors to consider include, mold price, quality, quantity, accessory standard, communication, lead times, and the mold design, among other factors.
Using the World Wide Web, you can easily find a wide range of plastic molding suppliers from the internet, sourcing agents, and trade shows, etc.

It is important to contact several suppliers before making a decision on a suitable supplier.

Evaluate the Various Mold/Molding Manufacturers

Conducting market research on the various plastic molding manufacturers helps to find a suitable fit for the business. So how can one evaluate the Chinese mold makers to identify a reliable source?
Sending inquiries helps the evaluation process. You should focus on asking questions that evaluate the core competence of the plastic molding companies.
A good supplier is one that shows interest in your projects, has effective communication, knowledgeable, detail-minded, and honest. The evaluation should target to identify the salient attributes of the supplier, for example, what is advantages do they have, is it suitable for your project? Have they done any similar projects like yours? All of the information will help to make your project smoothly or not.

Information Verification

Not all manufacturers are who they say they are. The customer should be able to verify the plastic molding manufacturer. Some of the information that can be verified include:

Type of mold parting line
The type of ejection modes, whether pins are used and the particular locations,
Surface requirement on the visible surface
The location and type of gates

Such information helps to verify the mold designs and product appearance. the most important thing is basing on this discussing with each other you will know their communication and technology ability. A supplier that verifies the information and offers samples is reliable.

Analysis of Production Issues that may Arise

A good plastic molding supplier should communicate the issues in advance and concerns that may arise in the production process, and actions are taken to address the issue. A good injection mold company should analyze the current design and offer rational recommendations, we call this DFM report.
Some of the important questions that help identify some of the issues include;

Have you produced similar molds/products before?
What were the challenges encountered?
Can you send your quality control inspection report?
How do you address the issues that arise?
Do you offer compensation for compromises?

With all the information, you should already have identified which Chinese molding company to source from.

Firm/Supplier Site Visit

Depending on the quantity of supply sourced, visiting the supplier may be important. For large quantities of plastic molding service, traveling to China should be a basic step. The objective is to analyze samples and evaluate the reliability of the supplier.

Go to their plastic molding company on site to communicate with them face to face, then you will know how the technical skill, English ability, etc. But mostly not always have time to check their mold factory, so we suggest you may ask for a skype video shows if you have no time to visit them.

At SINCERE TECH will take Skype video meeting to show you around our plastic mold and molding factory if you have no time to visit our factory, our sales and project manager speak good English and have the professional technical skill, you will know this during the video shows. if you are interested in our service, you are welcome to contact us.

injection moulding company

Maker A Contract

Importing products from China and Asian nations can be risky and complicated. Contracts are antidotes against the common mistakes and issues that may arise. It is essential for buyers to get into a contract for the following reasons;

To maintain clarity on product specifications and avoid misunderstandings. The specifications of the product can be easily lost in Skype or mail communication.
Compensation terms help suppliers to think twice about compromise.
Contracts help to communicate on how severe your business is
It helps to avoid delays

The first time you work with a China plastic injection molding company (same to work with your local supplier), you should always make agreements on contracts to avoid scams and fraud. Suppliers who default the negotiations should be responsible for making refunds and necessary compensations.

7.Payment and Delivery

Based on the set agreement, the amount can be paid by one time or two times ( maybe more times). The payment method depends on the agreed strategy. Some companies make payments via Paypal, Skrill, Payoneer, Western Union, Cheque, or other policies. Our standard payment term is T/T wire transfer. If the small amount. PayPal is still available, this is method is normally working for all of the companies in China, especially for custom plastic molding manufacturing service.

Concluding Thoughts

Buying plastic molding from China can be challenging. However, if you follow the seven steps, the process is easy and with no compromise. when you find your reliable partner from China, then your business will be increased rapidly, this is verified by lots of companies like Apple, and other car companies (over 80% of car companies buy their auto car molds from China), etc.

Doing online businesses have fraudulent operations. You should be cautious on the approach of doing business online to avoid frustrations, lots of company doing online business with China and successful to the business, also some of the customers had issues when doing business with Chinese manufacturers, or even have issues with your local supplier as well, do you agree? The above steps could help you avoid this issue and the success of your business.

Need any plastic injection mold/molding companies from China? Contact us now, you will find out we are your best partner in China. Welcome to talk with us on any questions.

2019年7月2日/by admin

China mold, custom plastic mold, Custom Plastic Packaging Containers, Injection molds, plastic food containers, plastic mold, plastic molding company

How to Buy Custom Plastic Packaging Containers

What is Plastic Packaging Containers

Plastic packaging containers are containers that are used to hold something; whether that be food, clothing, or anything else; that are made out of plastic. Many companies use different plastic packaging containers, such as pharmaceutical companies. the food industry, the healthcare industry, the pet industry, and many others.

Plastic packaging containers can be found at most stores you shop at, but what about custom plastic packaging containers? Where would you find an odd-shaped container that you need for a specific project? What if you need 1000 of that same odd-shaped container for your business? Do you want your company logo on those containers? There are many aspects to look at when choosing containers, depending on what you are looking for. For example, if you are looking for clear plastic packaging containers for food, you wouldn’t want containers that contain BPA. go to custom plastic food storage containers pageto know more information.

Step to order your own Plastic Packaging Containers

The first step in ordering your custom plastic packaging containers would be to determine the size and shape of the container that you need. If you need a smaller container, or a basic plastic mold then you are looking at spending less money. Whereas if you are wanting a plastic packaging container in an odd shape, you will be spending a little more.

Next, you would determine what quality of plastic you need the containers to be. You would need to look at different aspects for this, such as what products are going in the containers, how the custom plastic packaging containers are going to be stored, and what climate the containers will be stored in. This is an important step because you don’t want to order a container that is not going to fit your specific needs.

After you have determined the size, shape, and quality of your plastic packaging container, you will need to decide what you want the product to look like. This means deciding whether you want custom colors or extra design. Then, you will need to determine how many containers you need. If you need the containers for a wedding, for example, you wouldn’t need as many as you would for a business that needs containers for a product. all of those process we called part design and delvelopment.

In addition, you would determine how quickly you need the product. If you need a custom product as soon as possible, you would want to look at companies with in house engineers, that are located in your country. However, if you can wait some time, you could be saving money if you went for a larger manufacture overseas, like finf a plastic molding company to handle your custom plastic mold and massive products production.

Furthermore, you will need to decide whether you need a label on the containers. This is a pretty simple step, but if it’s missed, you could end up with thousands of containers that were ordered incorrectly.

Finally, you would choose the business that you want to order from, let them know your vision, and wait for your arrival. Choosing a business can be a difficult decision, and can be time consuming because you don’t want to make a mistake when mass producing something important. As long as you follow these steps, you are headed in the right direction to getting the custom plastic packaging containers you need.

Are you looking for Plastic Packaging Container mold manufacturer, storage box mold supplier, storage container molding manufacturing companies from China? You are welcome to contact solve your issue.

Sincere Tech is the professional plastic storage container mold manufacturer and storage box mold supplier in china. We offer custom plastic storage container mold, plastic food storage containers mold fro small to big, we can make storage box molds for you based on your design or the samples.

During the last few years, we have been exported different size PP storage container moulds to Turkey, South Africa, Canda, Italy, American, Mexico, Brazil, and so on.
We have accumulated well knowledge about Plastic Packaging Container Mold design and storage container mold tooling. For PP transparent storage container mold, we usually suggest DIN 1.2738H for good polishing and long-time polishing result, and also a long mold lifetime with high-pressure injection molding.

Plastic Food Storage Containers utility

Most of us have a microwave in-house, that’s why choosing plastic food containers that can be used safely in the microwave is very important. Be sure to read the product description before you make the buying decision. You should also select the containers that can be washed with dishwasher as well as can be used safely in the freezer, refrigerator.

One of the most important features of custom plastic food storage containers is the ability to isolate the food completely from the outside environment. If your container is not hermetic, the odour from inside can leak and absorb into other foods. This is, in turn, will make other foods lose their quality.

One more tip that you should keep in mind when choosing plastic food storage containers is always going for the ones that have a clear colour. Don’t be trapped by the colourful items. They may be made from recycled plastic that will do more harm than good to your health. You can also smell the containers to know roughly the quality of the plastic food storage containers. Good containers will have little to no odour while items which were made from recycled plastic will have strange, unpleasant smells.

Glass food storage containers utility

For some people, glass food storage containers are their personal favourite as many features that no other types of food containers can have. Glass food storage containers don’t turn opaque over time, glass doesn’t absorb odour. In addition, the glass container is very safe. You don’t have to worry about unethical manufacturers use low-quality material to make the product as in plastic containers. Such benefits explain why while plastic food storage containers are so popular, glass food containers still have a good place in the market.

When choosing glass food containers, you need to select good brands. After that, you should focus on durability. As a matter of fact, glass can easily be broken, this will be very dangerous. However, with the development of material industry, there are now many glass containers have great durability, but compare to plastic food storage containers, plastic food box is still more convenient and safer than glass container, and you will never get broken, this is the main reason that is why plastics food box has more market then glass food containers,

Do you need any Custom plastic storage containers for your business needs, we are a professional plastic mold maker and molding company, we will provide you with the best FDA plastics for any of your custom plastic food storage containers, we never ever save any penny of cost on this material, 100% pure FDA plastics is our minimum requirement for this such of plastic food container box.

When you partner with Sincere Tech as your preferred China mold maker, you can expect the highest level of professionalism, expertise, and innovation. We are dedicated to helping you bring your ideas to life, delivering superior products that excel in performance, durability, and cost-effectiveness.

Our expanded capabilities include:

Rapid Prototyping: We offer rapid prototyping services (3D printing or CNC machining prototypes) to quickly transform your rough design into useable prototypes, and testing, redesign suggestion etc.
Precision CNC machining: Our advanced CNC machines enable us to create high-quality mold components with tight tolerances, this will ensure currently tolerance and precision in the injection-molded products.
Overmolding: We make overmolding for some handle tools, some of overmoling are used in the die casting molds as well, contact for quote for your overmolding project.
Insert Molding: insert molding is similar to overmolding but will be little different, insert molding normally use metal parts as substrate and overmolding use plastic part as substrate.
Two-Shot Molding: With two-shot molding, we can produce complex, multi-material components in a single operation, reducing assembly requirements and enhancing design possibilities. Two shot molding is more complex than insert molding or overmolding, and two shot molding requires two shot injection molding machine.
Value-Added Services: In addition to injection molding, die casting, and machining, we offer a range of value-added services, including product silk-screen, painting, assembly, testing, certificate, packaging, and logistics support, streamlining your supply chain and reducing costs.

Partner with Sincere Tech China mold maker for your custom Plastic Packaging Containers, die casting and machining needs, we will offer you the best quality and fast lead time, contact us for quote in 24 hours.

2019年6月24日/by admin

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