Injection Molding
W&CWST Plastic Injection is an injection-molding specialist — it is our core process and our name. From a single-cavity prototype tool to a 32-cavity production mold, we design the mold, build it in-house and run the parts on our own machines.
How it works
- Plastic granules are melted in the barrel of the injection machine.
- The melt is injected into a precision steel mold under high pressure.
- The part cools in the mold, the mold opens and the part is ejected.
- Parts are trimmed, inspected, assembled and packed.
Typical products
Power & garden tools
Housings, handles, covers and internal structural parts.
Home appliances
Small appliance shells, bezels, buttons and functional parts.
Automotive & electronic parts
Connectors, brackets, clips, sensor housings and precision parts.
Medical devices
Clean-room molded components with tight tolerances.
Cosmetic packaging
Caps, jars, dispensers and decorative parts.
Custom OEM parts
Any plastic part from your 2D drawings or 3D STEP files.
Materials
ABS, PP, PC, PA6/PA66 (+GF), POM, PMMA, HIPS, TPE/TPU, PVC, PBT, ASA, PC/ABS and more — 120+ grades with live material pricing in our calculator.
Why choose WCWST
- In-house mold design, tooling and molding under one roof.
- Machines from 75T to 450T, single and multi-cavity molds.
- Engineering support from DFM to trial and mass production.
- Instant online estimate: mold cost + unit price in USD / EUR / CNY.

