Hengyi · Founded 2000

Tolerances you can repeat a thousand times

Hengyi machines precision components and builds automation equipment, with 5-axis milling, grinding and inspection under one roof for automotive, engineering and rail customers.

Get a Quote Products

0.005mm

Repeatable tolerance

Verified in production

320units

Machines installed

Milling, turning, grinding

1,150staff

Team size

Including 180 engineers

24hrs

Quote turnaround

For standard drawings

Trusted by leading companies

Precision Drive Systems

Apex Tooling Group

MetroRail Components

Northline Machinery

Vector Automation

IronBridge Industrial

Summit Bearings

Delta Motion Tech

About Us

Hengyi · Precision machining

Hengyi machines precision components and builds automation equipment, with 5-axis milling, grinding and inspection under one roof for automotive, engineering and rail customers.

Client outcomes come first
Delivery quality is the baseline, not the goal
Long-term thinking over short-term gain
We keep sharpening our craft

Learn More Contact Us

Founded2000

Team1,150 staff

Scale68,000 m²

HQNo. 66 Indus

Why Choose Us

Turning expertise into measurable results

Every step from briefing to after-sales has a defined owner and standard.

Five-axis capability

Simultaneous five-axis milling with in-process probing keeps tight features on one setup.

Measured, not assumed

CMM and optical inspection record every critical dimension against the drawing before release.

Prototype to volume

The same fixturing and programme run from first article through to series production.

Build-to-print

We work from your drawings and standards, and flag anything unmakeable before cutting metal.

Products

A product range built for real scenarios

Every item is validated in real use and can be adapted to your specification.

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Core

Precision machined parts

Aluminium, stainless and alloy steel components machined to drawing with full …

Turnkey

Automated assembly equipment

Custom stations for pressing, screwing and testing, delivered with cycle-time …

Leak-free

Hydraulic manifolds

Cross-drilled blocks with pressure testing at 1.5 times working pressure befor…

Ground

Gear and transmission parts

Hobbed and ground gears, shafts and housings held to AGMA quality class 8 and …

Metrology

Inspection fixtures

Designed and built fixturing that makes critical dimensions checkable on the l…

Tool room

Tooling and dies

Stamping dies, jigs and moulds produced in-house, with try-out to first-off ap…

In Numbers

Track record, in numbers

Every figure comes from actual deliveries and client feedback.

0.005mm

Repeatable tolerance

Verified in production

320units

Machines installed

Milling, turning, grinding

1,150staff

Team size

Including 180 engineers

24hrs

Quote turnaround

For standard drawings

Certifications

Qualifications that define what we can deliver

ISO 9001 / IATF 169492014

National High-Tech Enterprise2018

Provincial Technology Centre2017

Authorised supplier qualification2020

Our Work

Selected projects

A look at how we solved problems for clients like you.

Transmission housing programme

Two machining cells delivered and ramped to 4,000 parts per month.

Scrap rate 0.4%

Excavation equipment components

Heavy-duty pin and bushing machining with hardened surfaces.

Service life +35%

Mould tooling for consumer parts

Cavity work with surface finish and dimensional reports for each tool.

Try-out passed first time

Rail component supply

Safety-critical machined items with full traceability to heat number.

Passed 3 supplier audits

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How We Work

A clear path from brief to delivery

Each stage has a defined deliverable and a named contact.

Requirement review

Clarify the scenario, the metrics and the budget range

Proposal & quote

A tailored plan with itemised pricing

Delivery

Milestones agreed up front, progress shared as we go

After-sales follow-up

We track how it performs in use and keep improving it

Testimonials

What our clients say matters more

Three years in, what stands out is how little we have to chase them. They do what they promise, and they answer quickly when something comes up.

Wang JianguoClient · Head of Procurement

They are not the cheapest on the line, but the total cost works out lower. Far less rework and far fewer meetings, which matters over years.

Li HaiyanClient · General Manager

Technical conversations are smooth — they understand the application, not just the product. Our requirements are understood accurately, which is rare.

Zhang PengClient · Technical Director

News

Latest updates

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282026.07

New five-axis cell commissioned

The cell adds capacity for complex prismatic parts with in-process probing.

2026-07-28

302026.04

Metrology lab upgrades CMM

A larger measuring envelope brings 1.2 m parts back in-house instead of outsou…

2026-04-30

012026.09

Apprentice programme takes 20 more

Twenty trainees join the tool room and machining teams for a two-year programm…

2026-09-01

FAQ

Things you may want to know

Still have questions? Contact us — we reply within one business hour.

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Which regions do you cover?

We serve clients nationwide and handle cross-region delivery. Tell us your location and requirements and we will assign the right team.

How do I get a quotation?

Send us your requirement, quantity and delivery expectation through the form or by phone. We issue a formal quotation within 1–2 business days.

Can you provide samples?

Yes. Depending on your requirement we can send samples or arrange a small trial run so you can validate performance in real use.

How is after-sales support handled?

A dedicated after-sales team provides support through the whole service period, with response times stated in the contract.

Can we work together long term?

Yes. We build long-term relationships, and most clients have worked with us for over three years. Annual agreements can fix price, capacity and quality terms.

Tolerances you can repeat a thousand times

Tell us what you need — we will route it to the right specialist within one business day.　+86 531 8899 1200

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