Die Casting Services from China

High-precision aluminum and zinc die casting for production runs of 100 to 1,000,000+ parts. Factory-direct pricing, tight tolerances, and a free DFM review with every quote. Get your quote within 24 hours.

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✓ ISO 9001 Certified ✓ Factory Direct ✓ NDA Protected ✓ Global Shipping

Why companies switch to us

Tired of these die casting problems?

We have heard it all. Here is what we fix.

Common supplier headaches

  • Parts arrive with porosity, sink marks, or dimension issues that cost time and money to fix
  • Quotes take a week or more, and prices change after you commit
  • No DFM feedback — you find out your design is uncastable after paying for tooling
  • Poor communication, missed deadlines, and no one takes responsibility when things go wrong
  • Hidden middleman markup between you and the actual factory
  • Surface finishes do not match your spec, and secondary ops are outsourced to unknown shops

The YiguProto difference

  • Every part goes through strict in-house QC: CMM inspection, X-ray porosity checks, and visual inspection before shipping
  • Detailed quotes within 24 hours with clear, itemized pricing — no hidden fees or surprise charges
  • Free DFM review from real die casting engineers before you pay for tooling. We catch issues early.
  • One dedicated project manager who speaks fluent English, from quote through delivery
  • We own and operate our own factory in Dongguan, China. You talk directly to the source.
  • Tooling, casting, CNC machining, and surface finishing all under one roof — consistent quality, one accountable partner
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High pressure die casting process at YiguProto China factory
High-pressure die casting at YiguProto's in-house facility in Dongguan, China

What is die casting?

Strong metal parts, fast and at scale

Die casting is a manufacturing process where molten metal — usually aluminum or zinc — is pushed into a steel mold (called a die) under high pressure. The metal cools quickly in the mold, forming a solid part that is then ejected and trimmed.

It is the best choice when you need strong, precise metal parts in high volume. The same die can make tens of thousands to millions of parts with excellent consistency, and the cost per piece drops dramatically at volume compared to CNC machining or 3D printing.

As your China die casting manufacturer and supplier, we handle every step in our own factory — from die design and tooling to casting, machining, and finishing. You get a single source for your complete die casting solution.

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Capabilities

Die Casting Capabilities at a Glance

Real numbers so you can spec your part with confidence. Need something outside this range? Ask us — we handle custom projects all the time.

SpecificationOur Capability
Casting processHigh-pressure die casting (HPDC) — cold chamber for aluminum, hot chamber for zinc
Machine tonnage88T to 800T cold chamber; up to 200T hot chamber
Part weight rangeAluminum: 0.05 kg to 10 kg; Zinc: 0.005 kg to 2 kg
Wall thicknessAluminum: 1.5–4.5 mm typical (local 1.0 mm possible); Zinc: 0.8–2.0 mm (local 0.5 mm possible)
As-cast tolerance±0.05 mm on critical features; ±0.10–±0.30 mm on general dimensions
CNC post-machining tolerance±0.02 mm on critical machined features
Surface roughness (as-cast)Ra 1.6–6.3 μm
Production volumes100 – 1,000,000+ parts per order
Tooling lead time (T1 samples)15–25 business days
Production lead time2–4 weeks after sample approval
Tool life100,000+ shots (aluminum); 500,000+ shots (zinc), depending on design

Materials

Die Casting Materials We Work With

Choosing the right alloy matters for strength, corrosion resistance, cost, and finish. Here are the most common options.

Aluminum Alloys

The most popular choice — lightweight, strong, and corrosion resistant. Good for parts that need heat dissipation or a premium look.

  • A380Most common, great all-around
  • A383 (ADC12)Better flow for complex shapes
  • AlSi10MgBetter ductility, good for anodizing
  • A413Excellent pressure tightness

Zinc Alloys (Zamak)

Lower melting point means longer die life and thinner walls. Excellent dimensional accuracy and surface finish. Great for plating.

  • Zamak 3Most common zinc alloy
  • Zamak 5Higher hardness and strength
  • Zamak 2Highest strength zinc alloy
  • ZA-8Best for bearing applications

Not sure which alloy to choose? Our engineers will recommend the best material for your part during the free DFM review.

Ask a Materials Engineer

Surface Finishes

Surface Finishing Options

All finishes are done in-house or with our long-term vetted partners. Specify your desired finish and we deliver ready-to-use parts.

As-Cast Shot Blasting / Sandblasting Tumble Deburring Powder Coating Wet Spray Painting Anodizing (Type II & III, aluminum) Chromate Conversion / Alodine E-Coating (Cataphoresis) Electroplating (nickel, chrome, zinc) Brushing Polishing Silk Screening / Pad Printing Chemical Film

Why YiguProto

Six reasons buyers pick us as their die casting supplier

Factory-direct pricing

We own the factory — no middleman, no trading company markup. You deal directly with the people making your parts. Typical savings of 20–40% vs. domestic suppliers.

Free DFM on every quote

Our engineers review every part before you pay. We flag draft angles, wall thickness issues, porosity risks, and cost-saving design changes — before tooling starts.

In-house tooling & production

Die design, mold making, casting, CNC machining, and finishing all happen in our own 8,000+ sqm Dongguan factory. No outsourcing surprises.

Tight quality control

ISO 9001 certified. CMM dimensional inspection, X-ray porosity checks, material certificates, and full inspection reports with every shipment.

English-speaking project managers

One dedicated point of contact from quote to delivery. No language barriers, no missed messages, no "we will get back to you."

One-stop solutions

Beyond die casting, we also offer CNC machining, injection molding, sheet metal, 3D printing, and assembly. Get all your parts from one trusted China manufacturing partner.

15+
Years manufacturing experience
500+
Global clients served
24h
Quote turnaround time
99%
On-time delivery rate
8,000m²
In-house factory floor space

Industries We Serve

Die Casting Solutions for Every Industry

From automotive brackets to electronics housings, we deliver high-quality die cast parts for companies worldwide.

Automotive Brackets, housings, engine parts
Electronics Enclosures, heat sinks, connectors
Lighting LED housings, heat sinks
New Energy EV components, battery parts
Industrial Pump bodies, valve components
Telecom Antenna parts, chassis
Medical Device housings, equipment parts
Consumer Goods Hardware, locks, appliances

How it works

From CAD file to finished parts — in 5 simple steps

A clear, transparent process. No surprises, no guesswork.

1

Send Your Design

Upload STEP, STP, IGES, or PDF drawings. Tell us material, quantity, and finish. It takes 2 minutes.

2

Get Quote & DFM

Within 24 hours you get an itemized quote plus a free DFM report from our engineers.

3

Approve & Tool Up

Confirm the order. We design and build the die in-house. You get T1 samples in 15–25 days.

4

Production & QC

After sample approval, we run production. Every batch goes through CMM and visual inspection.

5

Ship to Your Door

Parts ship via DHL, FedEx, sea freight, or your preferred forwarder. Tracking provided.

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Secondary operations

More than just casting — complete, finished parts

Die cast parts rarely come out of the machine ready to ship. That is why we offer all secondary operations in-house. You do not have to coordinate multiple vendors — we handle everything.

  • CNC machining — drilling, tapping, milling tight-tolerance features
  • Deburring & tumbling — smooth edges, clean surfaces
  • Surface finishing — coating, plating, anodizing, painting
  • Insert installation — threaded inserts, pins, bushings
  • Assembly — simple sub-assemblies and kitting
  • Custom packaging — labeled, protected, and ready for your warehouse
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CNC machining and secondary operations for die cast parts
In-house CNC machining and finishing — parts arrive ready to use

FAQ

Frequently Asked Questions

Straight answers to the questions we hear most often.

Die casting pushes molten metal into a steel mold under high pressure. It makes strong, precise metal parts fast. Use it when you need metal parts in quantities of a few hundred or more, when consistent quality across thousands of parts matters, or when you want a lower per-piece cost than CNC machining.
Aluminum is lighter, more corrosion resistant, and handles heat well — it is the most common choice. Zinc is heavier but stronger, casts thinner walls, holds tighter tolerances, plates beautifully, and has a much longer die life (500K+ shots vs 100K+ for aluminum). Zinc melts at a lower temperature, which also reduces tooling cost per shot.
Send your 3D CAD files (STEP, STP, or IGES work best) along with your material, quantity, and finish requirements. Most quotes come back within a few hours on business days, and you will always have a full quote with DFM feedback within 24 hours.
Standard as-cast tolerance is ±0.05 mm on critical dimensions. For features that need CNC machining after casting, we hold ±0.02 mm. General structural dimensions are typically ±0.10 to ±0.30 mm depending on part size. We review every drawing and confirm achievable tolerances in our DFM report.
There is no strict MOQ. We regularly handle prototype runs starting at 100 pieces, bridge production in the thousands, and high-volume runs of 1,000,000+ parts. For very low volumes, we may recommend CNC machining instead — our engineers will suggest the most cost-effective option.
T1 (first sample) lead time is typically 15–25 business days after order confirmation, depending on part complexity. Once you approve samples, production runs usually ship within 2–4 weeks. We will give you a specific timeline with your quote.
Yes. All customer designs, files, and project details are treated as strictly confidential. We are happy to sign an NDA before you share any files. Your intellectual property stays yours.
You own the tooling fully once paid for. We maintain and store it for you at our factory for the life of your production. If you ever want to move the tool, we can arrange that. There are no ongoing "tooling rental" fees.
Yes. CNC machining, deburring, powder coating, painting, anodizing, plating, polishing, brushing, and assembly are all available. We deliver complete, finished parts ready for your production line — not raw castings you need to send elsewhere.
Yes. Every production order comes with a full inspection report including dimensional checks (CMM), visual inspection results, and material certificates for the alloy used. We can also provide PPAP documentation, RoHS/REACH compliance certificates, and X-ray porosity reports upon request.

Ready to start your die casting project?

Send your CAD files today and get a free, factory-direct quote with DFM review within 24 hours. No obligation, no hidden fees.

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