Engineering & ManufacturingCNC · Sheet Metal · Stamping · Rapid Prototyping
CNC · Sheet metal · Stamping · Rapid prototyping
CNC Machining, Sheet Metal & Rapid Prototyping Manufacturer in China
CNC machined, sheet metal, stamped and prototype parts in metal and plastic, made to your drawing. China United Mould has made parts and tooling in Huizhou and Dongguan since 2000.
- CNC prototypes from 1 to 500+ parts
- Anodizing, plating, powder coating
- ISO 9001 quality management system
CNC Machining
CNC milling, turning, Swiss-type turning, grinding and EDM for metal and plastic parts.
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Sheet Metal Fabrication
Laser, waterjet and plasma cutting, bending, welding and finishing for enclosures, brackets and panels.
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Metal Stamping
Blanking, punching, forming and deep drawing for brackets, clips, terminals and drawn parts in volume.
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Rapid Tooling
Aluminum and pre-hardened steel prototype molds for injection molded samples and bridge production.
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3D Printing
FDM, SLA/DLP, SLS/MJF, PolyJet and metal 3D printing for prototypes and short runs.
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Vacuum Casting
Polyurethane and resin parts cast in silicone molds for samples and short runs.
Learn more →How it works
From drawing to finished parts
- 1
Send your drawing
3D model, 2D drawing, material, finish and quantity.
- 2
Engineering review
We check the design for manufacturing and agree tolerances and process route.
- 3
Manufacturing
CNC machining, fabrication, stamping or prototyping.
- 4
Finish & inspect
Finishing, then inspection against the drawing; reports on request.
- 5
Delivery
Export packing; shipping terms agreed with the order.
Prototype to production
Which process at which stage
Printed or machined prototypes first, cast or rapid-tooled parts for testing, then production. Drawings, material decisions and inspection records stay with one supplier.
02
Bridge
Tens to hundreds of partsSamples, pre-series and tests in real materials.
03
Production
Repeat ordersRepeat batches made and checked to the approved first article.
Materials & finishes
Metals, plastics and finishes
Common engineering metals and plastics, machined, formed and finished to your drawing. Give us the grade on the drawing, or the properties the part needs.
Materials guide Surface finishingMetals
Aluminum 6061Aluminum 7075Stainless steel 304Stainless steel 316Carbon steelAlloy steelTool steelBrassCopperTitanium
Plastics
POM (acetal)NylonABSPCPMMAPEEKPEIPolyurethane resins
Finishes
AnodizingElectroplatingPowder coatingPaintingPassivationPolishing
Industries
Parts for machines, devices and products
Industrial automation
Electronics & telecom
Automotive & EV
Medical devices
Robotics & drones
Consumer products
Energy & lighting
Guides
Engineering guides
Machining Tolerances Explained: ISO 2768, GD&T and What They Cost
What general tolerances such as ISO 2768 mean, when to use GD&T, how tight tolerances affect cost, and…
Rapid Tooling vs Production Tooling: When to Use Each
How rapid (prototype) molds differ from production molds in material, construction, lead time, mold life and part cost,…
3D Printing vs CNC Machining vs Vacuum Casting for Prototypes
How 3D printing, CNC machining and vacuum casting compare for prototypes and short runs: materials, accuracy, surface, quantity…
FAQ
Questions we are often asked
What services do you offer?
CNC machining (milling, turning, Swiss-type turning, grinding, EDM), sheet metal fabrication, metal stamping, rapid tooling, 3D printing, vacuum casting and surface finishing.
What files do you need for a quotation?
A 3D model in STEP or IGES format and a 2D drawing in PDF with tolerances, plus the material, finish, quantity and required date.
Do you make prototypes and small batches?
Yes. CNC machined prototypes run from 1 to 500+ pieces; 3D printing, vacuum casting and rapid tooling cover plastic prototypes and short runs.
Which materials can you work with?
Aluminum, stainless steel, carbon and alloy steel, tool steel, brass, copper, titanium and engineering plastics such as POM, nylon, ABS, PC, PMMA and PEEK.
What finishes are available?
Deburring and polishing, anodizing, electroplating, powder coating, painting, passivation and heat treatment.
More on our FAQ page.
Request a quote
Send us your drawing
Attach your 3D model and drawing, or describe the part, the material and the quantity. We reply with a quotation and any design suggestions.