plastic mouldingPlastic molding is the plastic working through the Injection moulding machine, The melted plastic will automatically molten by the molding machine after erupting out in all of the plastic moulding methods, injection moulding technology has been the most widely used on the word today.
The method comprises the following steps: getting the thermoplastic plastic or the thermosetting plastic imported into the heating cylinder of the injection moulding machine, and when it is completely melted, it will produce heat and frictional heat by the pressure of the plunger or the screw, and is injected into the mould cavity of the closed mould, after curing, and then open the mould and take out the finished product.

If you are looking for plastic moulding service, you are welcome to contact us, we are a professional plastic moulding company in China that offer custom plastic moulding service to the wordwide.


Plastic Moulding Knowledge Guidance

1 The basic knowledge of plastic molding.
1.1 The characteristics and composition of plastic injection moulding.
Plastic Injection moulding is to fill the molten moulding material in a closed mould with high pressure. The pressure that the plastic molding cavity needs to be subjected to about 400 KGF /CM2, approximately 400 atmospheres.
With such a high pressure to make a product is its characteristic which is not the only an advantage but also disadvantages. In other words, the mold always has to be made stable, therefore its’ price is always high. So must be mass-produced in order to buckle with high-priced mould costs.
For example, the production of each batch must be more than 10000PCS to be reasonable. In other words, plastic molding work surely has to be a mass-production.

A few steps of the plastic molding process :
1.1.1 Closing
Close the door of injection molding machine and then start moulding
1.1.2 Clamping mold
Moving forward the moving half in order to get the mould closed. When the mould is closed which means is also locked.

1.1.3 Injecting (including holding press)
The barrel screw is quickly pushing forward, injecting the molten formed plastic material into the mould cavity to full fill it.
Keeping the press at the same time after full filling it, this action is particularly named “holding press.” The pressing that the mold has to bear when it just gets full filled, generally called ‘Injection Press’ or ‘one press’.

1.1.4 Cooling off (and the next step of the plasticization project)
The process of waiting for the material getting cool formed in the mould cavity is called “cooling off”, At this time the injection device is also ready for the next step, this process is called “plasticization process.
The moulded material is placed in the hopper, inflow into the heated tube to heat, it is based on the rotation of the screw turning the raw material into the molten status.
1.1.5 Opening the mould
Move the moving board to the backward and the mould will be opened.
1.1.6 Opening the security door
Opening the security door, then the machine will be in the standby status.
1.1.7 Picking up
Taking out the product, checking carefully if there is anything left in the mould cavity, and this whole forming operation is called moulding cycle time. The finished product is shaped by the shape of the mould.
The mold is composed of the left mould and the right mould, These two sides of moulds are left with voids, and the material would flow into the voids and get compressed to finish the product.
There are three main lines of the path of the molding material before it flows into the left side and right side, sprue, runner, gate, and so on.
1.2 Injection molding machine
Injection moulding machine is distinguished from two large projects, they are divided into two, clamping device and injection device.
1.2.2 clamping device
Closing the mould, the molding material would be cooled off and solidified in the mould cavity. Opening the mould cavity and take out the finished product is the action of the clamping device
1.2.3 Injection Device
Injecting the plastic material into the mould cavity called ‘Injection device’

 

The following describes the ability of the injection moulding machine, there are three provisions to distinguish the ability of it.

A. Clamping force
When the injection is made, the mould won’t be opened by the maximum clamping force, expressed as the number of TON.
B. Injection volume
The weight of a shot is generally expressed in terms of grams.
C. Plasticizing capacity
A certain amount of time able to melt the amount of resin, this is generally expressed in terms of grams.
The most important part is the clamping force, the area of the moulded article is referring the mould perpendicular to the shadow of the opening and closing direction (basically the moud’s area). The average pressure within the mold added to the projection area is called the clamping force. If the mold “projection area × average pressure” is greater than the “clamping force” then the left and the right side moulds will be pushed out.
Clamping force = projection area x average pressure within the mold In general, the mold can withstand the pressure of 400KGF /Cm2, so base on this figure to calculate the clamping force, but the clamping force often based on the shape of forming materials and the shape of the product’s vary.
The difference between the larger parameters such as PE, PP, PS, ABS materials, these raw materials are used to make the shallow box, the parameter is 300KGF /CM2.
If the depth of the box is deeper then the parameter is 400 KGF / CM2, If it is the small but high precision products. The projection area is about 10CM2 or less, its parameters are 600KGF / CM2.
The smaller parameters such as PVC, PC, POM, AS materials, these materials are also used to make a shallow box, the parameters of 400KGF / CM2, if it is a deep box of its parameters is 500KGF / CM2, if it is a small and high precision products, projection area of about 10CM2 below, its parameter is 800KGF / CM2.Chinese molding company

To working with Plastic Moulding is not easy, if you have a project that needs plastic molding service you need to find a professional plastic molding company to support you, to reduce your plastic mold and Injection moulding cost.

Find a Chinese molding company to support you will be one of the best options, plastic mould and moulding parts from China mold company has inexpensive price and short lead time, this is no reason that you do not choose your plastic molding supplier from China.
On the world, over 80% or overseas companies that buy products from China, China is the biggest manufacturer country on the world, this is no doubt about this,

Sincere Tech is an injection mold company in China, offer injection mould, plastic moulding service to the world, 90% of our mold and parts are export to American, Europe, and the world.

If you want to know more information about service, you are welcome to send us an email, if you need price for your project, please send us your requirement for quotation, we will offer you the best price and service. Hope to work together in the near future.

 

Plastic Injection molding is what people call the process of filling a plastic mold with liquid plastic and waiting for it to take shape. An injection mold maker is the machine that makes the mold for injection molding. An injection mold maker makes molds from metals, usually steel or aluminum. The process calls for precision because a mistake means a repeat of the process or the part made will not be ale to function well enough and may be substandard.

The process of plastic injection molding relies solely on the accuracy of the injection mold. If the plastic injection mold maker makes a mistake in making the necessary molds needed to produce plastic product, the over all effect will be defective. The mold maker must have the precise measurements of the mold it will make in order to fully meet the standards of the manufacturer and client.

Materials Used in the Process of Plastic Injection Molding:

The usual materials used by plastic injection molding are plastic materials like polystyrene, acrylonitrile butadiene styrene, nylon, polypropylene, polyethylene and PVC. These are the liquid plastics that are usually used by injection molds to produce the plastics that they will then sell. The polystyrene material is lower in cost and in material grade. ABS is a plastic that is hardier than the previous one but not flexible. Nylon can resist mot chemical and is more flexible the previous two. Polypropylene is the plastic usually used to manufacture containers because they are tough and flexible. Plastic Injection molding is also utilized for metal works.

Plastic Mold

Plastic Mold

A Plastic injection mold maker will have to make more molds if the molds are used for metal molding. Metal molding wears out the molds more than plastic molding because the melting temperature of metals is higher than plastics. Despite this additional cost, manufacturers still utilize injection molds for metal molding because the prices of metals that are molded this way are still profitable.

Uses of Plastic Injection Mold:

Plastic Injection molding is a manufacturing technique that is used for making parts from thermoplastic materials in production. After a product is designed by an industrial designer or engineer, the models are then made by a mold maker or toolmaker from metal, usually steel or aluminum.

Plastic Injection Mold is a method of molding in which the molding material is first placed in an open, heated mold cavity. The mold is then closed with a strong top force or plug member, and pressure is put on to force the material into contact with all of the mold areas, and then proper heat and pressure are maintained until the molding material has completely cured.

Injection Molded Plastic Parts: High-Quality Parts, Guaranteed to Specification, Extended Warranty, Retain Mold Integrity, Advanced Design, Quality Assurance

Finding the right source for your injection molded plastic parts is as easy as selecting https://www.plasticmold.net/. Our modern molding facility is located in Changping Town, Dongguan, China, an efficient plastic mold & molding company service custom injection mold and plastic molded parts to the world.

With SINCERE TECH, you are guaranteed professional quality assurance standards, the latest in technological equipment, and innovative, cost-efficient manufacturing techniques.

Injection Molded Plastic Parts: SINCERE TECCH’s Advantage

The injection molding process offers the lowest piece prices available, but tooling (plastic mold making) prices are generally the highest.  That is why we need to make all of the molds in-house to create top quality plastic mold and the lowest price for our customers.

SINCERETECH’s advanced design and engineering techniques produce the highest quality plastic injection molds available today.

And they stand behind their word. They offer their customers the option of joining their Extended Warranty Program guaranteeing the plastic mold we design and builds for you will retain its integrity throughout a specific number of cycles.

injection molded plastic parts

injection molded plastic parts

For more information, see the home page.

Injection Molded Plastic Parts: Applications

Injection molding is widely used for manufacturing a variety of parts, from the smallest component to entire body panels of cars. It is the most common method of production, with some commonly made items including bottle caps and outdoor furniture.

We have the ability to produce a wide variety of injection molded plastic parts and components, for industries of all types, including:

  • Connectors
  • Wire Shields
  • Vials
  • Cases
  • Switches
  • Housings
  • Face Plates
  • Toys
  • Bezels
  • Push Buttons
  • Knobs
  • Light Pipes
  • Shields
  • Computer Peripherals
  • Phone Parts
  • Gears
  • Typewriter Parts
  • Window Lift Parts
  • Fuse Blocks
  • Wedges
  • Trim Plates
  • DVD Brackets
  • Faucet Extrusions
  • A / C Vents
  • Gear Shift Knobs
  • Tail Lamp Sockets
  • Blood Testers
  • Boat Parts
  • Name Plates
  • Buckles
  • Bottle Ties
  • Component Boxes
  • Spools
  • Bobbins
  • Seat Belt Parts
  • Spacers
  • Lenses
  • Vents
  • Clips
  • Flower Pot Bases
  • Actuators
  • Radiator Tops
  • Junction
  • Boxes
  • Motor Housings
  • Key Fobs
  • Cosmetic Packaging

To provide the best process for your project, you are welcome to send us email, we will offer you the best solution for your project.

We are A Plastic Molding Parts Manufacturing Company, ISO 9001:2008 Registered, Cost-Effective Manufacturing Process, High Quality Products, Quality Assurance

Finding the right source for all your injection molded thermoplastic parts is as easy as selecting DONGGUAN SINCERE TECH CO.LTD (SINCER ETECH). If you need quality injected-molded parts from an ISO 9001:2000 Certified supplier, and you need them on time, ACM is the answer.

Plastic Mold & Plastic Molding Parts Service: Your One-Stop Solution

SINCERE TECH is a “one-stop, one-responsibility” company. our skilled, quality-minded thermoplastics professionals are committed to superior service, providing solutions to customers’ needs from concept to finished product. At our modern plastic molding facility you will be guaranteed:

  • Top quality products
  • The latest in technological equipment
  • Cost-effective manufacturing processes
  • Quality assurance procedures

We are capable of producing a wide variety of plastic parts and components, for industries of all types, including:

  • A / C Vents
  • Actuators
  • Bezels
  • Blood Testers
  • Boat Parts
  • Bobbins
  • Bottle Ties
  • Boxes
  • Brackets
  • Buckles
  • Cases
  • Clips
  • Component Boxes
  • Computer Peripherals
  • Connectors
  • Cosmetic Packaging
  • DVD / VCR Faceplates
  • Faucet Extrusions
  • Flower Pot Bases
  • Fuse Blocks
  • Gear Shift
  • Knobs
  • Gears
  • Housings
  • Junction Boxes
  • Key Fobs
  • Knobs
  • Lenses
  • Light Pipes
  • Motor Housings
  • Name Plates
  • Phone Parts
  • Push Buttons
  • Radiator Tops
  • Seat Belt Parts
  • Shields
  • Spacers
  • Spools
  • Switches
  • Tail Lamp Sockets
  • Toys
  • Trim Plates
  • Typewriter Parts
  • Vents
  • Vials
  • Wedges
  • Window Lift Parts
  • Wire Shields

SINCERE TECH’s Capabilitiesplastic mold manufacturing company

SINCERE TECH’s molding machines range from 60-ton to 2000-ton. We are equipped to mold products from many varieties and grades of resin, each with different properties, including:

  • Thermoplastic commodity resins
  • Engineering grade resins (filled and unfilled)
  • Elastomeric materials

Read more details about our Production Facility and Equipment.

Additionally, our facilities can provide a number of secondary operations, such as:

  • Assembly
  • Pad Printing
  • Painting
  • Drilling
  • Ultrasonic Welding
  • Milling
  • Ultrasonic Insertion

Read more details about our Production Facility and Equipment.

You are welcome to send us your new project, we will quote you with 24 hours, we will offer you the best solution for your new project to save you price, not only the injection molding process, but rubber molding, metal parts etc.

 

Custom injection molding

What is Custom injection molding?

The first question that comes to mind on hearing is what is Custom injection molding?

Custom injection molding refers to the making of plastic parts for specific applications i.e. customizing the components as per the customer’s requirements.

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Injection molding of Custom Plastic Parts
Injection molding is a process in which plastic pellets are melted and injected under high pressure into a mold cavity. The molded parts are then ejected, and the process repeated. The finished products can then be used as is, or as a component of other products. To do so requires an injection molding machine and tooling (often called a mold or die). The molding machine consists of a clamping unit to open and close the mold automatically, and an injection unit to heat and inject the material into the closed mold. Injection molding utilizes very high pressures and typically the machine is hydraulic or, increasingly, electric. Tooling for production injection molding applications must be able to survive under high pressure and is made from steel or aluminum. The potential high cost of tooling often drives the economics of a plastic molding application. Injection molding is an effective way to make custom parts.

The process broken down 
There are three main components in the injection molding process. The injection apparatus itself which melts and then transmits the plastic, the mold, which is custom designed, and clamping to provide controlled pressure. The plastic mold is a specially designed tool with a base and one or more cavities that will eventually be filled with resin. The injection unit melts the plastic granules and then injects them into the mold by either a reciprocating screw or a ram injector. The reciprocating screw offers the ability to inject smaller amounts of resin in the total shots, which is better for producing smaller parts. After injection, the mold is cooled constantly until the resin reaches a temperature that allows it to solidify.

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Complications with Injection Molding
Injection molding complications are few and can be easily avoided by paying close attention to the design of the plastic mold, the process itself and caring for your equipment. Parts can be burned or scorched when the temperature is too high, which is sometimes caused by the length of the cycle time which may be too long. This causes the resin to overheat. Warping of parts happens when there is an uneven surface temperature for the molds. Surface imperfections (commonly known as bubbles) happen when the melt temperature is too high, which causes the resin to break down and produce gas. This can also be caused by moisture in the resin. Another complication is incomplete cavity filling, which occurs when there isn’t enough resin released into the mold or if the injection speed is too slow, which results in the resin freezing.

Running a Custom Injection Molding Business
Custom molding business is a competitive business and to survive you should find your niche market. Most custom molders in business today have found a niche. Through experience, the molder became good at molding a particular type of part or at molding a particular kind of material, or in working in a specific segment of the marketplace. In other words, he acquired an expertise and stuck with it.

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insert molding

Insert Molding (Moulding), Plastic Injection Molding

SINCERE TECH offers Insert Molding Services as an add-on to the plastic injection molding service.  There is one direct difference between the two processes; the plastic injection molding process only uses plastic material in order to create a product.  On the other hand, the Insert Molding process includes other types of plastic and/or metals in order to create a more advanced product. There are thousands of uses for Insert Molding manufacturing.

The Insert Molding Process

The Insert Molding process starts off by either inserting the metal inserts before the custom injection molding process, or they can be inserted during the custom injection molding process.  If the inserts are chosen to be inserted during the plastic injection molding process, an Insert Moulding process operator or a robotic arm will load them.  If chosen to insert the metal inserts after the plastic injection molding operation, the same robotic arm or Insert Molding process operator will load them after the plastic injection molding process is complete. Usually, Insert Molding takes place after the custom injection molding process. This procedure ideally reduces insertion costs, which can save our customers substantial costs on custom insert molding projects. If you want to know more knowledge about insert molding, please go to what is insert molding page to take a look.

Regarding the Insert Molding process, there can be some very nice advantages when a robotic arm is handling parts.  When it comes to removing the molded parts and getting them ready for more processes, a multiple-axis robot can do that faster and more accurate than a human.  After the molded part is created and removed from the mold, the robot grips the part and moves it to either a location to be held or onto a system to be inspected.  The manufacturing equipment’s general layout and the kind of product being created are the determining factors in making this choice.

In order to assure a high level of quality for many parts that go through Insert Molding, robots can have vision systems mounted on them.  These vision systems inspect parts faster than a human, as well as know exactly what the metal component’s placement accuracy is.

Several industries thrive upon the products created through the Insert Molding process.  Actually, there are so many products created through this type of custom injection molding process, to buy inset molding from injection mold china company, that will save super cost since the low labor cost in China.  Here is a list of the industries these products belong to, and there is a list of the products that are created through this type of custom injection molding:

Automotive and Industrial Uses for Insert Molding (Moulding)

• Cable Assemblies
Sensor housing
• Seat adjustment motor’s brush holder
• Motor end bell
• Sound system’s speaker coil (also used for the electrical industry)
• Gear housing
• Motor assembly’s window lift actuator
Interior lighting base
• Components for alternator
• Module parts for engine control

Healthcare Industry Uses for Insert Moulding ( Molding)

  • Delivery storage units for DNA testing
    • Surgical blades
    • Dental instruments
    • Motors, gears and precision parts dental, medical, and surgical devices

Other Industries

plastic mold

plastic mold

  • Surge protectors
    • Buck knives
    • Yo-yos
    • Kitchen knives, forks, and spoons
    • Humidity sensor clips
    • Faucet handles…and so much more.

Sincere Tech has the experience and expertise for just about any custom plastic mold custom injection molding or inserts molding project. Let us take a look at your specs and quote you a price. Email us and we’ll contact you immediately.

SINCERE TECH is  Injection Molding China Company offers injection moulding service to various countries in the world with the best quality and excellent injection moldings services. The company ST which is known to be the leader of the mold manufacturer, with all its dedication, developed and produced varieties of the injection molding parts. The optimal service, leading equipment, and advanced technology are valuable reasons for the success of the company. ST Injection Molding Service Company optimize the design based on the requirements of the customer and they are very attentive while designing the mold as they can save their money, reduces the processing and mould repairing time for their customers.

The plastic mold designing team of the company has 15 experts in making fully complete mold design, four engineers who inspect the mold design and two technical managers to verify the mold structure before mold manufacturing. This team possesses the ability to operate UG and PRO-E software with all their efforts. The engineers of the company have the specialization of the product so that they can provide their customers with worth able suggestions and technical supports. The design engineers of ST  injection mold China and Injection Molding China Company offer DFM( design for manufacturability)  in two business days and within five days they supply fully mold design to the customers.

Mold developments with perfect design, the top processing technologies with constant works are their key to success. The superior emphasis on design, sophisticated working devices, and ideal processing system provide their clients with more satisfaction. ST Injection Mold China Company has launched 3 automatic production outline in the surface treatment and workshop that is dustproof which is used in surface texture, surface spray, IMD, etc. ST Injection Mold Company provides its customers with injection mold making and injection molding services at low cost which could not be provided by their competitors. If you are looking for injection mold or injection molding china partner to support your business, then you could contact with our team, we will reply to you with two business days.

ST, An injection Mold China Company supplies many kinds of injection molds, injection molding parts, plastic materials and several plastic molding technologies based on the requirements of the customers. The R&D department takes the responsibility of analyzing and designing the plastic parts according to the needs of the clients. The project department of the company will perform the foreseen inspection of plastic parts moldings structure, process, and related parts situation. The analysis is also done by the professionals whether the moldings are manufactured according to the design.

The production of the plastic molds is completed by the Professional MOLD FLOW Software, temperature control, gate assignment, cooling time and analyze injection process which would enhance the mould design. The project manager is responsible for the outline process, precision machining, rough machining, machine process, assembly inspection, colliding and assembly and molding test. Molding test is performed to check the dimension of the injection molding parts whether it matches with the mating parts. The QC department of the company will inspect the plastic parts mould on product size, injection process, appearance, and physical performance.

ST Plastic Mold Company has different inspection tool and inspection standard for different products. The company will make many testing the product withstanding pressure, tensile strength, impulse loading, and impact resistance. The company has as an abundant experience which is applied in the production of plastic part moldings so that the customers will be provided with the products of a superior standard. The plastic parts are subjected to various surface treatments to make the plastic molded parts having an excellent shape which is related to the customers’ need.  According to the order documents, the company will perform a strict inspection before the shipping of the products. If you want to know more information regarding the injection molding parts or if you have any project that needs an injection mold china company to support with injection mold making and injection molding parts production, welcome to send us your RFQ, we will quote you in two working days.

 Injection Molding & Injection Molding China

We are an Injection molding China Company, professional in Injection mold and injection molding manufacturing, Sell plastic parts from China to the world, we have been provided with the best quality the over 40 happy customers which they are fully satisfied by our quality and service, you are welcome if you need our supporting, we sincerely hope we could service in the near future and you will be surely happy as same as our other happy customers.

A variety of commercial methods are used to produce thermoplastic plastic products. Each has its specific design requirements, as well as limitations. Usually, part design, size, and shape clearly determine the best process. Occasionally, the part concept lends itself to more than one process. Because product development differs depending upon the process, your design team must decide which process to pursue early in product development. This section briefly explains the common processes used for thermoplastics from Bayer Corporation. Injection Molding, today lots of companies buy molding parts from injection molding China companies, if you need injection molded parts for your business, you need really think about this.

Do you need injection molding or are you looking for injection mold china partner to make plastic molds and produce the parts for you? Send us an email we will reply to you with two working days.

If you want to know more knowledge, please go to our other injection moulding page.

 

plastic mouldingPlastic moulding is the plastic work through the Injection moulding machine, The melted plastic will automatically molten after erupting out in all of the plastic moulding methods, injection moulding has been the most widely used. The method comprises the following steps: getting the thermoplastic plastic or the thermosetting plastic imported into the heating cylinder of the injection moulding machine, and when it is completely melted, it will produce heat and frictional heat by the pressure of the plunger or the screw, and is injected into the mould cavity of the closed mould, after curing, and then open the mould and take out the finished product.


Plastic Moulding Knowledge Guidance

1 The basic knowledge of plastic molding.
1.1 The characteristics and composition of plastic injection moulding.
Plastic Injection moulding is to fill the molten moulding material in a closed mould with high pressure. The pressure that the plastic molding cavity needs to be subjected to about 400 KGF / CM2, approximately 400 atmospheres. With such a high pressure to make a product is its characteristic which is not the only an advantage but also disadvantages. In other words, the mold always has to be made stable, therefore its’ price is always high. So must be mass-produced in order to buckle with high-priced mould costs. For example, the production of each batch must be more than 10000PCS to be reasonable. In other words, plastic molding work surely has to be a mass-production.

A few steps of the plastic molding process :
1.1.1 Closing
Close the security and then start moulding
1.1.2 Clamping mold
Moving forward the moving board in order to get the mould closed. When the mould is closed which means is also locked.

1.1.3 Injecting (including holding press)
The screw is quickly pushing forward, injecting the molten formed plastic material into the mould cavity to full fill it. Keeping the press at the same time after full filling it, this action is particularly named “holding press.” The pressing that the mold has to bear when it just gets full filled, generally called ‘Injection Press’ or ‘one press’.

1.1.4 Cooling off (and the next step of the plasticization project)
The process of waiting for the material getting cool formed in the mould cavity is called “cooling off”, At this time the injection device is also ready for the next step, this process is called “plasticization process. The moulded material is placed in the hopper, inflow into the heated tube to heat, it is based on the rotation of the screw turning the raw material into the molten status.
1.1.5 Opening the mould
Move the moving board to the backward and the mould will be opened.
1.1.6 Opening the security door
Opening the security door, then the machine will be in the standby status.
1.1.7 Picking up
Taking out the product, checking carefully if there is anything left in the mould cavity, and this whole forming operation is called moulding cycle time. The finished product is shaped by the shape of the mould. The mold is composed of the left mould and the right mould, These two sides of moulds are left with voids, and the material would flow into the voids and get compressed to finish the product. There are three main lines of the path of the molding material before it flows into the left side and right side, sprue, runner, gate, and so on.
1.2 Injection molding machine
Injection moulding machine is distinguished from two large projects, they are divided into two, clamping device and injection device.
1.2.2 clamping device
Closing the mould, the molding material would be cooled off and solidified in the mould cavity. Opening the mould cavity and take out the finished product is the action of the clamping device
1.2.3 Injection Device
Injecting the plastic material into the mould cavity called ‘Injection device’

 

The following describes the ability of the injection moulding machine, there are three provisions to distinguish the ability of it.
A. Clamping force
When the injection is made, the mould won’t be opened by the maximum clamping force, expressed as the number of TON.
B. Injection volume
The weight of a shot is generally expressed in terms of grams.
C. Plasticizing capacity
A certain amount of time able to melt the amount of resin, this is generally expressed in terms of grams.
The most important part is the clamping force, the area of the moulded article is referring the mould perpendicular to the shadow of the opening and closing direction (basically the moud’s area). The average pressure within the mold added to the projection area is called the clamping force. If the mold “projection area × average pressure” is greater than the “clamping force” then the left and the right side moulds will be pushed out.
Clamping force = projection area × average pressure within the mold In general, the mold can withstand the pressure of 400KGF / Cm2, so base on this figure to calculate the clamping force, but the clamping force often based on the shape of forming materials and the shape of the product’s vary, the difference between the larger parameters such as PE, PP, PS, ABS materials, these raw materials are used to make the shallow box, the parameter is 300KGF / CM2, , if the depth of the box is deeper then the parameter is 400 KGF / CM2, If it is the small but high precision products. The projection area is about 10CM2 or less, its parameters are 600KGF / CM2. The smaller parameters such as PVC, PC, POM, AS materials, these materials are also used to make a shallow box, the parameters of 400KGF / CM2, if it is a deep box of its parameters is 500KGF / CM2, if it is a small and high precision products, projection area of about 10CM2 below, its parameter is 800KGF / CM2.Chinese molding company

To working with Plastic Moulding is not easy, if you have a project that needs plastic molding service you need to find a professional plastic molding company to support you, to reduce your plastic mold and Injection moulding cost, find a Chinese molding company to support you will be one of the best options, plastic mould and moulding parts from China mold company has inexpensive price and short lead time, this is no reason that you do not choose your plastic molding supplier from China, on the world, over 80% or overseas companies that buy products from China, China is the biggest manufacturer country on the world, this is no doubt about this,

Sincere Tech is an injection mold company in China, offer injection mould, plastic moulding service to the world, 90% of our mold and parts are export to American, Europe, and the world, if you want to know more information about service, you are welcome to send us an email, if you need price for your project, please send us your requirement for quotation, we will offer you the best price and service. Hope to work together in the near future.

 

Plastic Mold Cost

How Much Does Injection Molding Cost?

Plastic Injection Molding Cost

Plastic Injection Molding Cost

If you are looking for the plastic molding parts for your new project, I believe the most important thing you want to know what will be the cost for the plastic mold and injection molding parts. Because all of this cost will affect your project going smoothly and success or failure. To carefully check this before you are running a new project if the project fails you will lose lots of money and time.

Let me give you some idea to help you understand plastic mold and plastic injection molding cost, this will save your time for your new development products.

The other easy way to understand those costs for your new project will be sending us your 3D part design or sample pictures, and tell us your requirements, like material for each part? Estimate the number of parts per time? Any special surface requirement to the visible side?

We will send you the best competitive price, we could offer the lowest mold cost $550, molding part cost $0.1, you could have this as a reference for your product and market research, welcome to contact us by [email protected]

Plastic Injection Molding Cost Guiding Tips

There are meanly four parts of cost: Plastic Material Cost, Molding Production Cost, Plastic Mold Cost, Part Color Cost, let us explain those four mean costs one by one.

Plastic Material Cost

First, the plastic material cost is determined by the weight of material that is required and the unit price of that material. The weight of the material is a result of the part volume and material density; however, the part’s maximum wall thickness can also play a role. The weight of material that is required includes the material that fills the channels of the mold. The size of those channels, and hence the amount of material, is largely determined by the thickness of the part, the selection of the material affects the unit part price as well, a different type of plastic material has a different price, for example, PP material is a totally different price than ABS material, so the material cost for plastic part includes two parts, one is the weight of the material, one is the type of material for the plastic part.

Second, the injection molding production cost is primarily calculated from the hourly rate and the cycle time. The hourly rate is proportional to the size of the injection moulding machine being used, so it is important to understand how the part design affects machine selection. Injection molding machines are typically referred to by the tonnage of the clamping force they provide. The required clamping force is determined by the projected area of the part and the pressure with which the material is injected. Therefore, a larger part will require a larger clamping force, and hence a more expensive machine. Also, certain materials that require high injection pressures may require higher tonnage machines. The size of the part must also comply with other machine specifications, such as clamp stroke, platen size, and shot capacity.

Injection Molding Production cost

The cycle time can be broken down into the injection time, cooling time, and resetting time. By reducing any of these times, the production cost will be lowered. The injection time can be decreased by reducing the maximum wall thickness of the part and the part volume. The cooling time is also decreased for lower wall thicknesses, as they require less time to cool all the way through. Several thermodynamic properties of the material also affect the cooling time. Lastly, the resetting time depends on the machine size and the part size. A larger plastic part will require larger motions from the machine to open, close, and eject the part, and a larger machine requires more time to perform these operations.

Plastic Mold Cost

Third, the plastic mold cost has two main components – the mold base and the machining of the cavities. The cost of the mold base is primarily controlled by the size of the part’s envelope. A larger plastic part requires a larger, more expensive mold base. The cost of machining the cavities is affected by nearly every aspect of the part’s geometry. The primary cost driver is the size of the cavity that must be machined, measured by the projected area of the cavity (equal to the projected area of the part and projected holes) and its depth. Any other elements that will require additional machining time will add to the cost, including the feature count, parting surface, side-cores, lifters, unscrewing devices, tolerance, and surface roughness.

The quantity of parts also impacts the plastic mold cost. A larger production quantity will require a higher class mold that will not wear as quickly. The stronger mold material results in a higher mold base cost and more machining time.

One final consideration is the number of side-action directions, which can indirectly affect the cost. The additional cost for side-cores is determined by how many are used. However, the number of directions can restrict the number of cavities that can be included in the mold. For example, the mold for a part that requires three side-action directions can only contain two cavities. There is no direct cost added, but it is possible that the use of more cavities could provide further savings.

Forth, the plastic molding color is also cost effection to the molded parts, normally does not have too much effect, but this is still depending on which parts color do you require if you need white color for your plastic parts, then the cost will be 10% more than another color, if you require clear color (transparent molding parts) molding parts, then the cost will be 25-40% high than normal color molded parts. When you need white color molding parts, then the molding shop needs to clean the barrel very well, and not allow any other color max in this injection unit and material, this will take time and waste some material, and the other thing is the waste rate will be increased, that is the reason the white color plastic parts is little high than other colors. When you are looking for transparent molding parts like PC injection molding, or PMMA, PS molding parts, the molding shop needs use special injection unit to produce this type of molding parts, they need to clear the unit barrel very well and use some good quality injection molding machine to produce the clear plastic molding parts, because any tiny molding defects on the transparent molding parts will be easy to identify, so you need to make the best quality molding parts, the waste rate is higher, and need to use the high tech injection molding machine, and all of those are more costly than normal molding production.

Injection molding Color Cost

Cost Estimating mothed for plastic injection mold and molding parts

1. Feature-based estimate

This feature-based cost estimator is for the plastic molding of production quantities (over 10,000 units), where more durable and costly tooling can be used due to its small impact on the per-part cost. The material cost is estimated from the part geometry and uses current material prices. For the production cost, a compatible injection molding machine is selected from a database of over 50 machines and the cycle time is estimated from the part geometry, material properties, and machine specifications. For the tooling cost, a suitable mold base is selected using standard mold dimensions and mold classes, and the required mold machining is estimated from the part geometry and other user specifications. These three costs (material, production, and tooling) are calculated for 4 different cavity arrangements (1, 2, 4, and 8 cavities) and the most cost-effective option is provided.

2. Low volume injection molding cost estimate

This feature-based cost estimator is for the injection molding of low volumes (under 10,000 units), where rapid tooling methods (high-speed machining of Class 104 molds) are used to create the mold due to the large impact on the per-part cost. The material cost is estimated from the part geometry and uses current material prices. For the production cost, a compatible injection molding machine is selected from a database of over 50 machines and the cycle time is estimated from the part geometry, material properties, and machine specifications. For the plastic tooling cost, a suitable mold base is selected using standard mold dimensions, and the required mold machining is estimated from the part geometry and other user specifications. These three costs (material, production, and tooling) are calculated for 4 different cavity arrangements (1, 2, 4, and 8 cavities) and the most cost-effective option is provided.

3. Standard estimate

This standard injection molding cost estimator does not require any part geometry but requires more process parameter inputs to calculate a more accurate estimate. The material cost is estimated from the part and runner volumes, an up-to-date material database with pricing, and customizable process parameters. For the production cost, the cycle time must be specified, as well as the machine rate and labor rates. After adding the mold cost, a detailed cost breakdown is provided for the material, production, and tooling costs.

4. Plastic mold cost estimate

This feature-based cost estimator calculates the mold cost for plastic molding. Based on the part geometry and mold requirements, such as the number of cavities, a suitable mold base is selected using standard mold dimensions. The required mold machining is estimated for the selected SPI mold class and rapid plastic tooling methods may be chosen for a Class 104 mold or so low volume products.

Hope all of that information could help you to get an idea about the cost idea for your project, are you ready to have your project start working on plastic injection molding, welcome to send us your requirement for quotation, we will quote you completely mold and molding price, you will have a complete plan for your project.