Client Testimonials

What Clients Say About YiguProto

Real reviews from engineers and buyers who use our China factory for CNC machining, 3D printing, injection molding and sheet metal parts. Fast quotes. Clear prices. Parts that pass inspection.

4.9/5
Average client rating
5,000+
Companies served worldwide
40+
Countries we ship to
24h
Quote turnaround, every business day

Why buyers switch to us

The Problems Buyers Bring Us — and How We Fix Them

These are the six headaches we hear about most. Here is what our factory does about each one.

Quotes that take days

You send files, then you wait and chase. We quote most jobs in a few hours, and never more than 24 hours on business days.

Parts that miss the tolerance

A missed dimension costs you time and money. Every batch runs through IQC, IPQC and OQC checks, with CMM or FAI reports on request.

Too many suppliers to manage

CNC machining, 3D printing, molding, sheet metal and finishing sit under one roof. One contact, one invoice, far less chasing.

Worry about your design files

Your ideas stay yours. We sign an NDA before we open your files, and they never leave our secure internal system.

Prices that change later

You get an itemized, factory-direct quote up front. No middleman markup, and no surprise fees at the end of the job.

Slow, unclear answers

You talk to a real engineer in plain English, not a call center. We reply within one business day and send photos before shipping.

Client reviews

What Engineers and Buyers Tell Us

Feedback from real orders, in the customer's own words. Roles and countries are shown as given; company names stay private.

★★★★★

“We sent a 5-axis bracket with tight tolerances. Their engineer caught two drawing issues before we cut metal. Parts arrived in spec, with the inspection report in the box.”

Mechanical EngineerAerospace supplier, Germany

★★★★★

“The quote came back in a few hours, not days. A clear price and a real delivery date. No chasing, no guessing.”

Purchasing ManagerIndustrial equipment, USA

★★★★★

“We ran three design rounds in two weeks. Fast 3D prints, honest advice on materials, and no drama.”

Product DesignerConsumer electronics, UK

★★★★★

“Their DFM review paid for itself. They moved a rib and fixed a sink mark before the mold was cut.”

R&D LeadMedical device company, Canada

★★★★★

“Enclosures, brackets and powder coating from one factory. Fewer suppliers means fewer delays for us.”

Operations ManagerRobotics startup, Netherlands

★★★★★

“We have shipped more than 50,000 parts with them. Batch after batch, the quality holds.”

Supply Chain DirectorAutomotive Tier 2, Japan

★★★★★

“No language barrier. Short, clear emails, quick answers, and photos of the parts before they ship.”

FounderHardware startup, Australia

★★★★★

“NDA signed before we shared a single file. They treated our design like it was their own.”

Engineering ManagerSemiconductor equipment, Singapore

★★★★★

“We tried three suppliers in China. This is the one we kept. Factory-direct pricing and steady quality.”

Procurement LeadNew energy, France

Client stories

Three Projects, Three Happy Customers

Short stories from real jobs. Problem, what we did, and the result.

A lighter bracket, approved first time

Problem: the part was too heavy, the tolerance was tight, and the deadline was short.

What we did: 5-axis CNC machining plus anodizing, both done in-house.

Result: 18% lighter, passed first article inspection, shipped in 12 days.

See 5 Axis Machining →

A cleaner housing, three weeks sooner

Problem: sink marks on the outside, and a mold quote that was too high.

What we did: free DFM review, then rapid tooling and production molding.

Result: tool cut three weeks early, first samples approved in one round.

See Injection Molding →

Thirty working grippers in ten days

Problem: the team needed working units fast, then a bridge into production.

What we did: 3D printing for fit checks, then CNC machining for the final parts.

Result: three design rounds in ten days, 30 units delivered on time.

See Rapid Prototyping →

Industries we serve

Trusted in Industries Where Failure Is Not an Option

We make parts for teams that cannot afford a bad batch.

Aerospace

Tight tolerances and light parts, with full inspection reports.

Explore Aerospace →

Medical

Biocompatible materials and clean, repeatable parts.

Explore Medical →

Automotive

Prototypes and low-volume runs that hold up on the road.

Explore Automotive →

Robotics

Complex parts in days, not weeks, so you can keep iterating.

Explore Robotics →

Electronics

Enclosures and housings with a clean, paint-ready finish.

Explore Electronics →

Industrial Parts

Spare parts and small batches, delivered on schedule.

Explore Industrial Parts →

Why engineers trust us

Experience, Expertise, Authority and Trust

Reviews are only useful if the company behind them is real. Here is what stands behind ours.

Experience

10+ years on the shop floor. We have made thousands of parts like yours, in our Dongguan, China factory.

Expertise

A free DFM report with every quote. An in-house engineer shows you how to cut cost and risk before you order.

Authority

A factory you can audit. ISO 9001:2015 managed quality, CMM inspection and material certificates. Come and visit.

Trust

Itemized prices, NDA on request, and inspection data with every batch. You always know what you are paying for.

How to start

From Your File to Your Door in 4 Steps

No account needed. No long forms. Just send the files you already have.

1

Send your files

Upload STEP, STP, IGES, STL or a PDF drawing. We can sign an NDA first.

2

Get a quote in 24h

You receive an itemized price and a free DFM report. No obligation.

3

We build your parts

We machine, print, mold or form your parts and check them in-house.

4

Parts at your door

Worldwide shipping with tracking, photos and inspection reports.

FAQ

Questions Buyers Ask Before They Order

Send your 3D files (STEP, STP, STL, IGES) or a PDF drawing. Most quotes come back within a few hours on business days, and never more than 24 hours.
Yes. Every project is treated as confidential. We sign an NDA on request, and your files never leave our secure internal system.
Yes. An in-house engineer reviews your part and sends a free DFM report with your quote. We point out cost traps and tolerance risks before you order.
There is no strict MOQ. We make one-off prototypes and production runs of 100,000+ parts from the same factory. Start with one piece.
Yes. We ship to the USA, Canada, the UK, the EU, Australia, Japan and 40+ other countries by DHL, FedEx, UPS or sea freight. Door-to-door delivery is available.
Tell us within 14 days. We check the parts against your drawing and our inspection data, then remake them at our cost or credit your account.

Ready to Work With a China Manufacturer You Can Trust?

Send your files today. You will have a factory-direct quote and a free DFM report within 24 hours.

Get My Free Quote or talk to an engineer →

Email us

Send drawings or questions and get a reply within one business day.

sales@yiguproto.com

Chat on WhatsApp

Need a fast answer? Message us and we usually reply within minutes.

+86 150 1712 6694

Get a quote

Upload your files and choose your process. Price in 24 hours.

Start your quote →