Custom CNC machined and molded parts made by a China manufacturer
Custom parts made in our China factory — from one prototype to full production

China Manufacturing Partner · Since 2010

Custom Parts from a China Manufacturer You Can Trust

YiguProto is a China-based manufacturer and supplier of custom parts. We offer CNC machining, 3D printing, injection molding and sheet metal services. One company, one contact, from prototype to production.

  • ISO 9001 quality system. Full inspection reports.
  • Factory-direct pricing. No hidden fees.
  • Free DFM feedback with every quote.
  • No strict MOQ. Order 1 piece or 1 million.
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Trusted by 2,000+ buyers in 60+ countries. NDA signed on request.

Manufacturing services

What Our China Factory Can Make for You

Six core services under one roof. Pick one, or let us combine them for your project.

CNC Machining Service

Cut metal and plastic with high accuracy. 3, 4 and 5-axis milling, turning, EDM and grinding. Tolerances down to ±0.005 mm.

CNC Machining →

3D Printing Service

Build parts layer by layer. No mold needed. FDM, SLA, SLS, SLM, MJF and DLP. Great for fast prototypes.

3D Printing →

Injection Molding Service

Make plastic parts in large numbers. We build the mold and run the parts. Rapid tooling to production molds.

Injection Molding →

Sheet Metal Fabrication

Form flat metal into strong parts. Laser cutting, bending, welding and finishing for enclosures and brackets.

Sheet Metal →

Rapid Prototyping Service

Test your idea fast. We choose the best process for your design and deliver parts in days.

Rapid Prototyping →

Surface Finishing Service

Make parts look better and last longer. Anodizing, plating, powder coating, polishing and more.

Surface Finish →

Not sure which process fits your part? Send your file and we will advise you for free.

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Capabilities

Specs You Can Plan Around

Clear numbers, no guesswork. Here is what our manufacturing solutions can do.

CapabilityWhat it means for youTypical spec
CNC MachiningMilling, turning, EDM and grinding for metal and plastic±0.005 mm tolerance · parts up to 1,200 mm
3D PrintingFDM, SLA, SLS, SLM, MJF and DLP for fast partsLayer from 0.05 mm · build up to 600 mm
Injection MoldingTooling and production, from 1 to 1,000,000 partsMold in 7–15 days · no strict MOQ
Sheet MetalCutting, bending and welding for frames and enclosuresThickness 0.5–6 mm · laser ±0.1 mm
MaterialsMetal and plastic grades in stock or sourced fast100+ grades: Al, steel, SS, Ti, Cu, ABS, PC, POM, PEEK
Surface FinishCosmetic and functional finishesAnodizing, plating, painting, polishing, SPI
Lead TimePrototypes fast, production steady1–3 days for prototypes · 3–10 days shipping
Order SizeSmall batch or mass production1 piece to 1,000,000 pieces

How it works

From Your Drawing to Your Door in 4 Steps

No long forms. No sales pressure. Just a clear path to your parts.

1

Upload Your Design

Send STEP, STP, IGES, X_T or a PDF drawing. Not sure about the file? Email us and we will help.

2

Get a Quote and DFM

We send price, lead time and DFM notes. Most quotes come in a few hours, never more than 24 hours.

3

Approve and We Build

Confirm the quote and pay a deposit. We machine, print or mold your parts in our own factory.

4

Inspect and Ship

We check the parts and send a QC report and photos. Then we ship worldwide with tracking.

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Why choose us

Why Buyers Choose YiguProto

We are not a broker. We are a manufacturer. That changes how we work with you.

One Factory, Many Processes

CNC, 3D printing, molding and sheet metal under one roof. Fewer suppliers to manage and chase.

Engineers, Not Just Sales

A real manufacturing engineer reads your drawing and answers your questions in plain English.

Quality You Can Prove

CMM reports, material certificates and part photos come with your order.

Price You Can Plan On

Factory-direct and itemized. Your quote stays valid for 30 days.

Speed You Can Build Around

Prototypes in 1–3 days. Fast air shipping to the US and EU.

One Point of Contact

The same person follows your order from first quote to final delivery.

15+Years in manufacturing
60+Countries served
5,000+Projects delivered
98%On-time delivery

Quality assurance

Quality Is Checked, Not Promised

Every order runs through the same quality steps. You get proof with your parts, not just words.

  • Incoming material check (IQC). We verify grade and certificates first.
  • First article inspection. We approve the setup before the full run.
  • In-process checks (IPQC) at key steps of production.
  • Final inspection (FQC) with CMM and gauges on critical sizes.
  • Reports on request: FAI, dimensional report, RoHS and REACH certificates.
Ask for a Sample Report

Industries

Manufacturing Solutions for Every Sector

From aerospace to consumer goods, we make the parts engineers depend on.

Aerospace

Tight tolerances, exotic materials and full traceability.

Aerospace →

Medical

Clean, precise and biocompatible components.

Medical →

Automotive

Prototype to production at mixed volumes.

Automotive →

Robotics

Lightweight, high-precision moving parts.

Robotics →

Electronics

Housings, heatsinks and precision internals.

Electronics →

New Energy

Durable parts for EV, solar and battery systems.

New Energy →

Semiconductor

Ultra-clean parts with fine surface control.

Semiconductor →

Consumer Goods

Good looks, good feel and repeatable quality.

Consumer Goods →
View All Industries

Real project

From a 2D Drawing to 5,000 Parts a Month

Aluminum bracket · CNC machining · US hardware startup

A US startup sent us a drawing for an aluminum bracket. The wall was too thin and would crack during machining. Our engineer flagged it in the DFM review. We changed one radius, kept the strength and cut the cost by 18%.

The first batch was 50 parts in 5 days. The customer then ordered 5,000 parts a month for full production. Three years later, we still make that part for them.

  • 18%Cost saved by DFM
  • 5 daysFirst batch delivered
  • 3 yearsStill a customer today

Names withheld under NDA. Ask us for more case studies that match your industry.

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What buyers say

Trusted by Buyers Around the World

"Quotes come back the same day. That alone saves my team a whole week."

Procurement Manager · Germany

"Their DFM notes caught a mistake that would have cost me a mold. Real engineers."

Hardware Founder · United States

"Five years, thousands of parts, no bad batch. That is why we keep ordering."

Engineering Lead · Canada

FAQ

Questions Buyers Ask Before They Order

New to sourcing from a China supplier? Start here. If your question is not listed, just ask us.

We make custom parts from metal and plastic. Our services include CNC machining, 3D printing, injection molding, sheet metal and surface finishing. We handle one-off prototypes and full production runs.
Send your drawing or 3D file. Most quotes come back in a few hours on business days. It never takes more than 24 hours.
STEP, STP, IGES, X_T, STL or PDF drawings all work. If you are not sure, email us and our engineer will help you.
No strict MOQ. You can order 1 piece for a prototype or 1,000,000 pieces for production.
Your design stays yours. We sign an NDA when you ask. All customer files are treated as confidential.
Yes. Our engineers review your design for free and point out thin walls, tight corners and cost traps before you pay.
We check incoming material, run first article inspection and inspect critical dimensions at the end. You get a QC report and photos with your order.
Yes. We sign NDAs on request. Material certificates, FAI reports and RoHS or REACH documents are available when you need them.

Send Your Design. Get a Quote in 24 Hours.

Talk to a real engineer at our China factory. Free DFM feedback. No hidden fees. No pressure.

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