Overmolding is the process of molding plastic onto plastic or metal components. A part is engineered to fit into a steel mold to allow plastic to be formed around the part, creating a strong bond between the part and the overmolded plastic and eliminating the need for assembly.

custom plastic injection molding cudtom

Process Features

Advantage	Shortcoming
1. Short molding cycle, high production efficiency, and easy automation.	1. The price of injection molding equipment is higher.
2. It can form plastic parts with complex shapes and precise dimensions, with metal or non-metal inserts.	2. The structure of the injection mold is complex.
3. Stable product quality.	3. The production cost is high, the production cycle is long, and it is not suitable for the production of single and small batches of plastic parts.
4. Wide range of adaptation.

Injection molding machine

Injection molding is a cyclic process, each cycle mainly includes: quantitative feeding - melting and plasticizing - pressure injection - mold filling and cooling - mold opening and taking out. After the plastic parts are taken out, the mold is closed again for the next cycle.

Injection Mold Tooling

The best injection mold tooling makes the best finished products. That's just what we deliver, providing our customers with products that fit their needs and exceed their expectations.

custom plastic injection molding FACTORY

Raw Materials

The main raw materials of injection molding products are: polystyrene, polyethylene, polypropylene and ABS4 kinds of resins. These four resin injection molding plastic products account for more than 80% of the total raw materials of injection molding products. Among them, the application amount of polystyrene, polyethylene and polypropylene resin accounts for 70% of the total amount of raw materials used.

Quality & Delivery

double injection molding factory

Quality begins before we ever produce a part. Our engineers work closely with our Production and Quality teams to design a process for each part with quality and customer value as the focus. We utilize our extensive experience and technical capabilities at the outset of any project to recommend improvements that will produce better quality for our customers.

Assembly & Packing

We take our molding expertise and combine this with our years of automation and testing experience to add quality and value to our products. Our assembly operations are more than simply put parts together: we build in numerous quality checks throughout each process to ensure a perfect part, every time.

Plastic overmolding process