China United Mould

Plastic Injection Moulding

Plastic manufacturing

The right moulding process for your part

Our plastic injection molding services in China cover everything from 0.1 g precision parts to large parts on 1300 ton presses.

Our polymer manufacturing scope supports rigid parts, flexible components, hollow products and combinations of materials. We select the process around the product’s geometry, functional requirements and production volume.

Production runs on injection machines from 50 to 1300 tons for parts from 0.1 g and shot weights up to 8500 g (PS basis), with robots, conveyors and assembly lines.

Moulded Parts
Moulding Robot Ai

Moulding processes

Plastic injection moulding (molding) at a glance

Presses50 to 1300 tons clamping force
Part sizeFrom 0.1 g precision parts to shot weights of 8500 g (PS basis)
ProcessesInjection, insert, overmoulding, two-shot (2K) moulding, in-mould labelling and decoration
AutomationRobots, conveyors and assembly lines
Secondary stepsPlastic assembly and secondary operations in the same programme
QualityFirst-article, in-process and final inspection under our ISO 9001 system
Typical partsBumpers, chairs, crates, appliance housings, electronic housings and medical disposables

Injection moulding: frequently asked questions

What size of parts can you mould?

From small precision components of 0.1 g to large parts with shot weights up to 8500 g (PS basis), on presses from 50 to 1300 tons. That covers parts such as bumpers, chairs, crates and appliance housings.

Can you mould two materials or colours in one part?

Yes. We offer overmoulding and two-shot (2K) moulding, for example for soft-touch grips and two-colour parts, as well as insert moulding.

How do you control quality during production?

First-article inspection before release, in-process checks at defined intervals and final inspection before packing, under our ISO 9001 quality system.

Is injection moulding right for small quantities?

For very small quantities, CNC machining, 3D printing or vacuum casting may be more economical. We advise on the best route before you invest in a mould.

Have a project in mind? Send us your drawing for a quotation.