Plastic Injection Molding
Plastic injection molding provides high-volume production of consistent, durable parts with excellent repeatability. The process enables complex geometries and thin-walled designs while maintaining tight tolerances (±0.1mm). With fast cycle times and low per-unit costs, it's ideal for mass production across industries like automotive, consumer goods, and medical devices.
- Thermoplastics (ABS, PC, Nylon, etc.)
- High-Cavity/ Multi-Cavity Molds for Mass Production
- Overmolding / Insert Molding for Multi-Material Parts
- 7-30 Day Lead Time with Production Quantities (1k-1M+ pcs)
- Surface Finishes: Glossy/Matte/Texture/UV Coating/plating/etc.
- Custom Mold Design & Rapid Tooling Options

- Overview
- Production Capability
- Materials
- Finishes
- Why Choose Us
- Resources
Expertise in High-Performance Molding
From Raw material to Finish parts
We offer comprehensive plastic injection molding services—from initial design optimization and mold engineering to prototyping and high-volume production. With advanced machinery and technical expertise, we transforming raw polymer resins into high-quality finished components. Our process ensures precision, efficiency, and consistency—from material selection to final inspection and packaging.
Material Preparation
Resin drying (for hygroscopic materials) Color mixing/masterbatching Additive incorporation (fillers, reinforcements)
Mold Setup
Mold installation and clamping Temperature setting (mold & barrel) Process parameter configuration
Injection Phase
Resin melting in the barrel (180-300°C) Injection under high pressure (700-1500 bar) Packing pressure application
Cooling Phase
Controlled cooling time Part solidification Mold temperature maintenance
Ejection
Mold opening Ejector pin activation Automated part removal
Get Precision CNC Parts Today
We offer precision CNC machining with fast turnaround, supporting various materials and part complexities. Ideal for prototyping or scaling up production, with consistent quality every step of the way.

Materials for Manufacturing
We offer a range of materials, including plastics, metals, and composites, selected for their strength, durability, and resistance to heat and chemicals. These materials ensure high-quality, long-lasting products for industries like automotive, electronics, and medical.
We can source any other materials upon request! If you don’t see the material you need please contact us
Some of Our Samples
These samples highlight our expertise, but we provide a wide range of additional services.
Why Choose Us?
SunOn Industrial Group Limited offers end-to-end services from product design to mass production, specializing in high-quality solutions for industries like home appliances, automotive, and medical devices. With over 25 years of experience and a global presence, we ensure reliable, cost-effective solutions and seamless service from prototype to final assembly.
- One-stop solutions from prototype to packaging.
- Timely support across 27 cities worldwide.
- Experienced engineers ensuring quality results.
- ISO 9001, IATF 16949, ISO 14001 certified.

Industry Application
We produce millions of parts for diverse industries, including automotive, medical, robotics, automation, communications, consumer electronics, and LED lighting, delivering top-quality products.
FAQs
When can I get the price?
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What is your MOQ for the products?
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When did you start to export moulds to USA and Europe?
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Manufacturing Resources
Start production of your parts today
