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China Plastic Injection Molding Company

We are a China Plastic Injection Molding Company that provides custom plastic injection moulds and molded products to American, Rorupe, Japan and the world.

Our state of the art of high tech equipment allows us to minimize set-up time and in-process adjustments, maximize output and run at optimum capacity. Combined with little overhead, we can offer you the most competitive pricing in the industry.

Our Quality Control System is based on ISO9001:2008 standards. Every job has a control plan to identify critical production criteria. Each control plan is carefully monitored throughout the manufacturing process. We utilize 100% in-process inspection as well as first piece qualifications and batch capability studies to ensure a flawless delivered product.

SINCERE TECH’s mission is to reduce high-quality plastic molds and moding products, in the most cost-effective manner for your complete satisfaction. Our 15-year reputation is riding on it!


Founded in 2005, Steve Yang and Gordan Zheng formed a partnership to produce plastic injection molds and die-cast molds for the overseas manufacturing industry.

Plastic Molds

They rented a 1000 square meters. space in Chong Pin Ton, Dong Guan City, China

Over the next few years, expansion continued and equipment was added, including more CNC machines, Mills, Grinders and EDM Machining Centers.

In 2010. ST purchased 3 sets of plastic injection molding machines to trial the molds and samples, and provide massive production to customers.

In Mar 2016, a 6,000 square meters new building was purchased in by ourselves. Expansion continued and equipment was added, including Wire EDM Machining Center, Coordinate Measuring Machine and more Plastic Molding Machine. As the production increased in the molding area, ST purchased 10 sets more injection molding machines from 60 to 650 tons.

Our Service: One-stop fully services for Plastic Mold making and Plastic Injection Molding Services.

Mold Design Engineering; Expert mold design engineering for functional, reliable, economical and aesthetically-pleasing products.
Precision Injection Mold and Tooling; Precision injection mold tooling to meet a wide range of customer requirements.
Plastic Injection Molding Services; Hundreds of industries rely on Plastic Injection Molding to create most of today’s products and/or parts. How may we assist you?
Insert Molding Services; the experience and expertise for most custom injection molding or insert molding projects. How may we assist you?

Are you project ready to start making injection molds and molding yet? You are welcome to send us your drawing, we will quote you in 24 hours.


What Is high volume Injection Molding?

High volume injection moldingSINCERE TECH Plastic Injection Molding For Precision and Durability

High volume injection molding is the process by which industrial grade and ready to integrate plastic products are manufactured with sophisticated and advanced machinery. The very basis of production injection molding is using an injection mechanism to inject the raw plastic into a mold that shapes the molten plastic. This mold is then open with the help of a clamp that ejects the plastic parts. At SINCERE TECH, we are designing process with a scientific approach to reduce cycle time, reduce production cost and make a consistent product

Where Do They Use The Production Injection Molding Process?

This process is used across a number of industries and applications. Wherever they use plastics parts as an integral part of any product, they use the production injection molding process. This process was mainly conceived at the beginning of the twentieth century to facilitate the mass production of plastic items.

Today, it is aided by automation and robotics where CAD completely 3D part design and mold design files are sent to the manufacturing plant, and the plastic molds are created directly from referencing the file. This has streamlined the process and made it more efficient, both quantitatively and qualitatively.plastic molds

The SINCERE TECH Advantage for Plastic mold Manufacturing

SINCERE TECH is a seasoned player in the manufacture of plastic mold for parts and components that are used across applications and industries. We have been in the business for years and have created only the most high-quality and precision oriented plastic part manufacturing machines that match other key players in the area.

All our production injection molding tools are made with respect to the international standards that are expected from clients in North American and European countries. We always ensure that our plastic molding machines and molds have high-precision to mold plastics into any desired shape as the product demands.

Also, our plastic molding machines are fast so that they help you save time and manufacture as many plastic products according to your requirement. We embed quality with the quantity which enables you to get to your clients and investors before they start considering anybody else.

We promise you that our production injection molds are far superior and stronger than the others you may have the cheaper price but will have risk for your quality, some key point you should know if you make a good job every time you custom will happy with you all the time, but when you make a mistake once your custom will leave you away, and our job is to prevent that our quality will be always good quality because every single part we will keep an eye on it.

Looking for High Volume Injection Molding service? Contact us to get a price, you will not lose anything but have our good price