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ISO 9001:2015 · ISO 14001 · ISO 45001

Precision Parts.
Delivered to Your Specs.
Tolerances to ±0.005 mm.

HH MACHINERY turns your 3D CAD into production-ready parts -- 3-7 day prototypes, 5-axis CNC, full DFM support, and a standardized NDA to protect your IP. Trusted by R&D teams across North America and Europe since 2013.

  • MOQ from 1 pc
  • 24 hr RFQ turnaround
  • DHL / FedEx / UPS
  • RoHS & REACH
  • CMM Inspection
  • NDA Protected
Precision CNC machined parts by HH MACHINERY
Critical Tol. ±0.005 mm
Engineering Capabilities

Built for Complex, Critical Parts

A 2,000 sqm workshop with 30 CNC units. From 3-axis milling to 5-axis simultaneous machining, EDM, and precision grinding -- one partner for your entire NPI cycle.

Precision Machining

  • 3, 4 & 5-axis simultaneous CNC milling and turning
  • Precision grinding, wire EDM, sinker EDM
  • Sheet metal fabrication & full DFM feedback

Materials & Finishes

  • Metals: Al, Stainless Steel, Titanium, Brass, Copper
  • Plastics: PEEK, POM, Nylon & custom composites
  • Anodizing, passivation, powder coating, plating & more

Quality & IP Security

  • 100% CMM inspection, optical projectors, roughness testers
  • GD&T compliance; RoHS & REACH certified
  • Standardized NDA to protect your drawings & IP
Technical specifications by machining process
Process Typical Materials Max Dimensions (mm) Standard Tol.
CNC Milling (3/4/5-Axis) Al6061, SUS304, Titanium 1200 × 800 × 600 ±0.02 mm
CNC Turning Brass, Steel, PEEK Ø 400 × 800 length ±0.01 mm
Precision Grinding Hardened Tool Steel 600 × 400 ±0.005 mm
Wire / Sinker EDM Tool Steel, Tungsten 400 × 300 × 200 ±0.005 mm
Industries Served

Trusted Across Critical Sectors

From robotics R&D to medical device prototyping -- we understand the precision, compliance, and speed that each industry demands.

Robotics
Medical
Aerospace
EV / Auto
Smart Hardware
Automation
Why HH MACHINERY

The Partner Your R&D Process Deserves

We eliminate the friction that slows hardware teams down -- misread drawings, missed tolerances, and communication delays across time zones.

24h

RFQ Turnaround

Upload your CAD files and receive a detailed quotation within one business day, including DFM notes.

±0.005

mm Critical Tolerance

Verified by CMM and optical projectors. Every critical dimension is documented and traceable.

3-7

Day Rapid Prototypes

Accelerate your iteration cycles. Functional prototypes shipped via DHL/FedEx in days, not weeks.

NDA

IP Protection Standard

Standardized NDA executed before any file transfer. Your IP and proprietary designs are fully protected.

From CAD to Delivered Parts -- Our Process

  1. Upload CAD & RFQ

    Submit STEP/IGES files with tolerances and quantity. Receive quote in 24 hrs.

  2. DFM Review

    Our engineers flag risks and suggest optimizations before a single chip is cut.

  3. Precision Machining

    5-axis CNC, EDM, grinding -- executed to your exact GD&T specifications.

  4. 100% Inspection

    CMM measurement reports and dimensional inspection sheets provided with every order.

  5. Global Shipping

    DHL/FedEx/UPS with full tracking. Customs documentation handled for US & EU import.

Client Feedback

What Engineers Say

Feedback from hardware R&D teams across the US and Europe who rely on HH MACHINERY for critical-path components.

"The DFM feedback they provided before production saved us two revision cycles. Tolerances were spot-on and the CMM report gave our quality team everything they needed."
J. Reeves
Mechanical Engineer, Robotics Startup -- USA
"Prototypes arrived in 5 days via DHL. The surface finish on our titanium housing exceeded expectations. Communication in English was clear and technically precise throughout."
L. Müller
Hardware Product Manager, MedTech -- Germany
"We've been sourcing from HH for 3 years. Consistent quality, zero IP concerns thanks to their NDA process, and the team always understands GD&T callouts without back-and-forth."
A. Thompson
Strategic Sourcing Manager, EV Startup -- UK

Certifications & Standards

ISO 9001:2015
ISO 14001
ISO 45001
RoHS Compliant
REACH Compliant
Request a Quote

Ready to Start Your Next Project?

Upload your CAD files or describe your requirements. Our engineering team will respond within 24 hours with a detailed quotation and DFM analysis -- no commitment required.

  • Quote within 24 hours -- including DFM feedback
  • Your drawings are protected under our standard NDA
  • MOQ from 1 piece -- prototypes and production runs welcome
  • English-speaking engineers who understand GD&T and mechanical specs

Prefer Direct Contact?

info@hhmachinery.com

We reply within 1 business day (US/EU time zones)

Project Enquiry

* Required
Submitting enquiry...

By submitting, you agree to our standard NDA. Your files and data are never shared with third parties.

Est. 2013 · Dongguan, China

Your Next Precision Part Starts Here.

From single prototypes to production runs -- HH MACHINERY delivers the accuracy, speed, and communication your R&D team expects from a world-class CNC partner.

11+
Years in Operation
30
CNC Machining Units
±0.005
mm Critical Tolerance
3-7
Day Prototype Delivery