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Core Service
Looking For Plastic Molding Services?
Not sure if your part structure is reasonable for plastic mold? Talk to our technical team — we'll suggest the best design and lowest-cost path to plastic molding manufacturing, using the minimum investment to win the maximum return for your business.
Zero Risk To Get Started
Send your 3D data, get a competitive price — no strings attached.
Send us your 3D data (STP or IGS format) for an estimated price and initial market evaluation. You lose nothing and gain our competitive price for reference. We never share your data with third parties, and we're willing to sign an NDA to protect your project.
Have a technical question? Reach our technical manager directly at steve@sinceretechs.com — fluent English, 18+ years of technical experience, ready to solve your issue and save you cost.
Our Facility
A Company Built To Run Continuously
Our plastic molding company sits in Dong Guan City, China, 15 minutes from our mould factory — a 12,000 square meter facility with 25 injection molding machines ranging from 60 to 2,000 tons, including 3 double injection molding machines.
- Runs 24 hours a day, 6 days a week
- Capacity for continuous production on demand
- Short or long production runs based on volume
Capabilities & Quality
Rich Experience, Fully Verified Quality
We produce molded plastic components across a wide range of sizes and volumes, with deep experience in multi-cavity molds, overmolding, hot runner molds, gas-assist molding, double injection molding, insert molding and more.
Every part dimension is measured on a CMM before production and sent for your approval. Our QC department records every batch for full traceability, and we run a complete DFM (design for manufacturability) report before any mold making begins — flagging surface requirements, sink marks and gate marks in advance to save time and prevent costly issues.
Molding Processes
Five ways to shape your plastic part.
Understanding these processes helps you find the best fit for your project and budget.
Our Core Service
Injection Molding
Molten plastic forced into a mold at high pressure, cooled, then ejected. Best for large volumes, tight tolerances and intricate features — mold cost is higher, but unit price drops fast at scale.
Extrusion Molding
Molten material passes continuously through a die to form a profile — ideal for sheet, film, pipe, trim and window frame production at high linear speed.
Thermoforming Molding
A heated plastic sheet is vacuum- or pressure-formed over a mold. Lower tooling cost than injection molding, well suited to larger, simpler parts.
Blow Molding
Efficiently produces hollow items like bottles, containers and light globes, and shapes like air ducts and gas tanks, via extrusion or injection blow molding.
Rotomolding
Powdered resin coats a rotating, heated mold to form large hollow shapes like light globes and yard toys — low tooling cost, longer cycle times.
Our Work
Parts we've molded before.
A sample across categories — not limited to these. Contact us for a price on your specific project.
High Precision Plastic Injection Molding Parts
Below are a few precision plastic molding parts we made before, go to high precision plastic injection molding page to know more.
Clear Injection Moulding Parts
Below are a few clear injection molding parts we made before, there are some PMMA injection molding, PC injection molding, etc.
Electronic Plastic Molded Parts
Below are a few electronic plastic molding parts we made before, please go to electronic enclosure parts to know more.
Two Color Injection Molding Parts
Here are some 2K injection molding parts we made before, go to 2 shot injection molding and overmolding page to know more aobut this molding technology.
Silicone Rubber Molding Parts
Below are some silicone rubber molding parts we made before, go to liquid silicone injection molding and Silicone injection molding page to know more.
The Basics
What Is Plastic Molding?
Plastic moulding is the process of using a plastic molding machine and mold to create plastic products. Plastic material goes into a heating barrel heated to 280–320°C, melting it into a liquid that's mixed and forced into a mold cavity — then cooled to hold the shape you want.
If you're developing a new product, plastic molded parts will likely be part of your build — though for early testing, 3D printing or CNC prototype machining is usually the better first step. Once testing is complete, injection molding can be carried out with confidence.
Start Your Project
Have a part to manufacture? Let's make it production-ready.
Send your drawings, 3D files or project requirements and our team can review the next step.