Mould Design & Development
DFM review, mould-flow analysis and engineering for complex tooling.
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Precision Moulds · Injection Moulding · Since 1992
Precision moulds and moulded parts, engineered to ship worldwide.
Kunshan Zhengxin is a one-stop precision manufacturing partner — from mould design and in-house tooling to injection moulding of plastic, two-colour and silicone parts.
1992
Tooling exported for global brands
30+
Years of precision tooling
100+
Mould sets delivered yearly
0.03mm
Repeatable tolerance
80–800T
Injection tonnage range
Trusted to tool and mould for
GoodbabyChildcare
LenovoElectronics
BYDAutomotive
GeelyAutomotive
PLAYSEATNetherlands · Export
BeibeijiaChildcare
Who We Are
A precision tooling house that thinks like a manufacturer
Founded in 1992, Zhengxin grew from a Dongguan workshop into a 1,600 m² precision facility in Kunshan.
- 01
In-house tooling
Design, CNC, EDM and grinding under one roof
- 02
Verified quality
CMM inspection on every critical dimension
- 03
Export-ready
Moulds exported to PLAYSEAT, the Netherlands
What We Do
Four capabilities, one continuous workflow
Everything from the first drawing to the final shipped part happens within our own walls.
Precision Tooling & Machining
EDM, CNC machining centres, grinding and engraving.
Learn moreInjection Moulding
Presses from 80–800T, including two-colour and electroplating-grade parts.
Learn moreRubber & Silicone
Silicone over-moulding and soft-touch components.
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Industries
Parts that ship into demanding markets
Automotive
Automotive
Structural parts, two-colour trim and child safety seats.
Appliances
Home Appliances
Tooling for air-conditioning and small-appliance housings.
Childcare
Childcare & Strollers
Armrests, wheels and assemblies for juvenile-product brands.
Power Tools
Power Tools
Durable housings engineered for high-cycle use.
Electronics
Consumer Electronics
Charger housings, connector covers and RC-car shells.
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Why Zhengxin
Built for buyers who can't compromise on tolerance
Five reasons procurement teams keep their tooling with us.
Get in touch- 01
Mould development in-house
We don't outsource the hard part.
- 02
30+ years of complex tooling
Decades of high-precision and two-colour moulds.
- 03
CMM-verified quality
Critical dimensions are measured, not assumed.
- 04
Multi-standard & export
One tool moulding both EU and China-standard parts.
- 05
Full traceability
From steel to shipment, every step is documented.
Three decades of metal, precision and trust
The numbers behind the moulds we ship.
1992
Established
1,600㎡
Precision facility
40+
Machines in-house
100+
Mould sets / year
How We Work
From drawing to delivery
DFM Review
We analyse your drawing for mouldability before steel is cut.
Mould Design
Structure, cooling and mould-flow are engineered for your part.
Tooling & EDM
CNC, EDM, grinding and engraving cut the mould to intent.
Sampling (T1)
First shots are measured and reviewed with you.
Injection & QC
Volume runs on 80–800T presses with inspection.
Packing & Export
Parts are packed to export standards and shipped.
Selected Work
A look inside the toolroom
Real moulds and parts from our floor.
Have a part, or just a drawing?
Send us a model or sketch and we'll come back with mouldability feedback and a quote.