Subtractive Micromachining

Precision Multi-Axis CNC Machining Services

High-speed 5-axis CNC milling and Swiss-type micro-turning for luxury watch cases, complex jewelry housings, and high-tolerance mechanical hardware. We machine solid billets of 316L, 904L, Grade 5 titanium, marine bronze, and brass down to ±0.003 mm tolerances.

Capability Benchmark

  • Machining Centers Simultaneous 5-Axis Milling & Multi-Spindle Lathes
  • Critical Tolerances Down to ±0.003 mm (Casing Seats & Threads)
  • Spindle Speeds High-Speed Spindles up to 30,000 RPM
  • Material Spectrum 316L, 904L, Grade 5 Ti, CuSn8 Bronze, Brass H62
  • Surface As-Machined Ra 0.4 to 0.8 µm smooth toolpath finish
  • Production Batch Prototyping (1-50 pcs) to Volume Production
  • Tooling Library Micro-endmills down to 0.2 mm tool diameter
  • Inspection Method 100% Mitutoyo 3D CMM Metrology Verification
Technical Scope

Machining Disciplines & Cell Configurations

Advanced CNC equipment arrays tailored for complex curvilinear geometries and cylindrical micro-features.

Simultaneous 5-Axis

5-Axis Complex Milling

Single-setup machining of multi-faceted watch cases, ergonomic lug curvatures, and fluid organic jewelry forms without cumulative re-fixturing errors.

  • Axis Setup Simultaneous X, Y, Z, A, B axes
  • Angular Precision Index accuracy within 0.001 degrees
  • Casing Types Monobloc, cushion, tonneau, skeleton
Swiss Lathe Precision

Swiss-Type Micro Turning

Guide-bushing sliding-headstock turning of slender cylindrical components including watch crowns, pusher tubes, movement spacers, and threaded bezel rings.

  • Diameter Capacity 0.5 mm to 32.0 mm diameter stock
  • Concentricity Runout held within 0.002 mm
  • Live Tooling Cross-drilling, milling, and thread whirling
High-Speed Engraving

High-Speed CNC Carving

30,000 RPM micro-milling for delicate dial apertures, intricate bezel knurling patterns, recessed logo cavities, and precision stone-setting pockets.

  • Cutter Diameter Solid carbide cutters from 0.15 mm
  • Wall Thickness Thin walls machined down to 0.3 mm
  • Burr Control Zero burr edges under 40x optical review
Engineering Precision

CNC Machining Engineering Benchmarks

Strict metrology criteria, equipment standards, and verification methodologies applied across every production batch.

Machining Parameter Standard Workshop Tolerance High-Precision Horology Benchmark Verification Protocol
Caseback Thread Pitch ISO Metric 6H/6g ±0.01 mm Custom micro-thread class ±0.004 mm Optical thread projector & Go/No-Go thread gauge
Bezel Seating Diameter ±0.01 mm radial fit ±0.003 mm snap-ring interference seat Mitutoyo 3D Coordinate Measuring Machine probe
Lug Hole Concentricity True position within 0.03 mm True position within 0.008 mm across lugs Micro-pin concentricity alignment fixture
Surface Flatness 0.01 mm across 50 mm span 0.003 mm optical datum flatness Optical granite surface plate & dial indicator
Manufacturing Protocol

Precision Production Workflow

From technical CAD validation to cleanroom quality inspection, our engineering workflow ensures strict repeatability.

PHASE 01

Engineering DFM & Blueprints

Our engineers inspect your 3D CAD files or physical reference parts to optimize toolpaths, clamping datums, and tolerance stack-ups. Comprehensive 2D manufacturing blueprints are delivered for review.

PHASE 02

Master Prototyping & CMM Audit

First-article pilot samples are machined on 5-axis equipment and routed directly to the metrology lab. Every critical datum, gasket seat, and thread pitch is measured using 3D CMM coordinate probes.

PHASE 03

Batch Machining & Artisanal Finishing

Batch manufacturing utilizes multi-axis Japanese CNC equipment, robotic surface buffing, and master hand-applied satin graining. Components undergo strict optical inspection before movement casing.

PHASE 04

Class 10,000 Cleanroom Assembly & QC

All watch casing and critical sub-assembly takes place in ISO 14644 Class 10,000 cleanrooms to eliminate airborne dust. Every completed piece passes 48-hour mechanical timing and dual pressure tests.

Technical Guidance

Frequently Asked Questions

Common technical and commercial questions regarding our machinery capabilities, materials, and contract manufacturing standards.

What CAD file formats do you require for CNC machining quotes?

We accept standard 3D CAD formats including STEP, IGES, and SolidWorks (SLDPRT), paired with 2D PDF engineering drawings specifying critical dimensional tolerances and surface roughness.

How do you control thermal expansion during 5-axis machining?

Our CNC workshops are temperature-controlled at 20°C ±1°C with continuous chilled synthetic cutting fluid delivery, ensuring zero thermal drift across extended milling cycles.

Can you machine exotic alloys like Grade 5 titanium and bronze?

Yes. We regularly machine Grade 5 titanium (Ti-6Al-4V), aerospace 7075 aluminum, C83600/CuSn8 bronze alloys, and vacuum re-melted 316LVM steel.

What is the typical turnaround time for CNC machined prototypes?

First-article prototype samples are typically machined, measured on our CMM, and shipped within 15 to 20 working days.

Start Your Production Project

Bring Precision Engineering to Your Product Line

Send us your 3D CAD drawings, component blueprints, or technical specifications. Our engineering desk will deliver an exhaustive DFM analysis, tooling proposal, and quotation within 24 business hours.

Submit Request for Quotation