There are thousands of plastic injection molding manufacturers in China that strive to provide quality products, which makes it difficult for buyers to select the one that will provide the best quality for their products, since plastic injection molding involves molten plastic.
The following list of the top 5 plastic injection molding companies will help you manufacture your product to perfection if you are looking to develop your own product with custom plastic parts.
What is Plastic Injection Molding?
When plastic material is heated in the injection barrel and plasticized, molten plastic is then injected through the sprue and runner system into the mold cavity, and finally, after it has been cooled, it takes shape as a result of the injection. Plastic injection molding is a manufacturing process that is defined as this process.
The Detail of The Process
During the molding process, the plastic pellets will first be delivered into the high-temperature injection barrel through the hopper, where they will be heated, melted and plasticized into a sticky molten flow, which will then be injected through the injection nozzle at high speed under the great pushing pressure exerted by the plunger or the screw into a lower temperature closed mold under the great pushing pressure exerted by the plunger or the screw during the injection process.
A great deal of pressure will be applied to the molten plastic in order to fill up the cavity and also compact the plastic into the cavity. After a certain amount of time, the plunger or a screw will return to its original position, at which point the plastic will flow back into the cavity.
In order for the product to be released from the cavity of the mold after cooling and forming, it must first open in order to release the product.
Plastic injection molds injection forming foam mold
Best 5 mold manufacturers in China 2023
1， winwinmold mold manufacturer
A very professional plastic injection mold manufacturer located in Shenzhen of China, WIN WIN MOLD is a professional manufacturer of plastic injection molds. After 15+ years of development, it has grown into an enterprise that offers a full range of “turn key” services to customers, which includes product design, prototype making, mold design, mold making, and molding manufacturing. Furthermore, they are specialized in designing and manufacturing plastic injection molds.
Business policy – establishing long-term goals and short-term goals for “common growth and shared achievements ”.
Quality policy – control of the environment, excellence, continual improvement, and satisfaction of customers are the key components.
Quality objective – achieving zero defects in the products and having customer satisfaction levels above 99% by the end of the year.
2， Guangzhou Engineering Plastics Industries (Group) Co., Ltd.
The Guangzhou Engineering Plastics Industries, a joint venture integrating manufacture, sales, design and process, provides engineering plastics and plastic parts, is a joint venture that integrates manufacture, sale, design, and process. The company owns a comprehensive range of imported manufacturing machines, CNC machining machines, advanced process tools, in addition to the company’s technology that is unparalleled.
In the beginning of the company’s operation, it designed and developed plastic products by themselves and occupied the market by occupying a number of domestic brand machine equipment factories and end users substituted it for similar imported products in the market. In the meantime, our products have expanded business to the West, South East Asia, Middle East, Africa, and Hongkong, Taiwan. Their products have achieved a great reputation among their customers.
3, Xiamen Goldcattle Plastic & Metal Products Co., Ltd.
They were founded in 1995 as a high-tech enterprise of national rank that specializes in machining parts, injection parts, and stamping parts of very high precision. A company with 22 years of experience and a good reputation, a highly skilled team and advanced production equipment to provide a one-stop service from design to delivery as specified by the customer. With the principle of “high-quality, efficiency, honesty and service”, the aim of “sustainable operation, customers first”, and the good attitude of working and serving the customers, they are looking forward to establishing long-term and win-win business relationships with clients all over the world.
4, Guangzhou Haoshun Mold Tech Co., Ltd.
Haoshun Mold Tech is one of the most experienced prototyping, tooling, and plastic injection molding manufacturers in China. It was established in 2007, and has been certified with ISO9001 System Certification since 2007.
A wide range of services are available to them, including prototyping, tooling, injection molding, low volume production, as well as surface finishing. It is our goal at Haoshun to provide a high level of quality and services within a short lead time as per your requirements to support the development of customized products and create value for you.
More than 100 skilled employees and an array of advanced equipment are available at Haoshun, which is located on an area of 5,000m2. For example, they have 3axis, 4axis, 5axis CNC machines, 3D printing machines, injection machines, and a variety of other processing machines to meet your ever-increasing demands and their sustainable development.
5, Zetar Industry Co., Limited
Shanghai Zetar Industry Co.,Limited has been focusing on plastic injection molds and molding services ever since its start up in 1979.
Having a professional engineering team which consists of more than five engineers who are experienced in plastic injection mold design, plastic injection molding process as well as metal stamping, they are able to provide their clients with high quality products.