CNC Turning
CNC lathes, automatic lathes, conventional lathes

High-precision CNC turning for shafts, sleeves, pins, and custom fasteners. Automatic CNC lathes support continuous volume production, while conventional lathes — operated by senior technicians — handle prototypes and small-batch orders flexibly.
Typical projects include: precision shafts (motor and drive shafts), custom screws and nuts, pneumatic cylinder pistons, bearing rings, and electrical connectors. For tighter OD tolerances or mirror-finish surfaces, we can integrate precision grinding.
Equipment
- CNC lathes (standard and high-precision)
- Automatic CNC lathes (continuous bar feed for production)
- Conventional lathes (prototypes, special shapes)
- Mill-turn complex machines (multi-process in single setup)
Applicable Parts
- Shafts, pins, sleeves
- Custom screws and nuts (special heads / thread pitches)
- Cylinder pistons, bearing rings
- Electrical connectors and contact parts
- Optical lens mounts, precision fittings
Compatible Materials
- Free-machining stainless (SUS303, SUS440C)
- Aluminum alloys (A6061, A2024)
- Brass C3604 (free-cutting brass)
- Phosphor bronze C5191, C5341
- Carbon steel (S45C, SCM440)
Specs & Tolerances
- Tolerance: per drawing specification
- Surface finish: Ra 0.4 ~ Ra 1.6 (finish turning)
- Bar diameter: Φ3 ~ Φ200 mm (machine-dependent)
- MOQ: from 1 piece
Industries this process commonly serves
Semiconductor Equipment Precision Parts Machining
40 years serving Taiwan's semiconductor industry — strict cleanliness, short lead times, long-term partnerships
Aerospace Precision Parts Machining
Difficult alloys, tight tolerances, lightweight structures — Weiyon's aerospace expertise
Medical Device Precision Parts Machining
Biocompatible materials, strict surface specs, full traceability — Weiyon's medical device machining
Automotive Precision Parts Machining
Volume stability, standards compliance, batch traceability — Weiyon's automotive parts machining
Automation Equipment Precision Parts Machining
Mechanism parts, joint mounts, grippers — Weiyon's automation parts machining
Aftermarket & Tuning Parts Machining
Exhaust, intake, chassis, engine bay — your precision partner for tuning brands and racing teams
Oil & Gas Precision Parts Machining
Valve internals, flanges, pump parts — precision machining for GCC and global oil & gas supply chains
Explore our complete machining capabilities
CNC Milling
Machining centers, CNC mills, gantry mills
Precision EDM
Wire-cut, sinker EDM, micro-hole EDM (via partner network)
Sheet Metal Fabrication
Laser cutting, turret punch, press, bending, rolling (via partner network)
Surface Treatment
Heat treatment, plating, anodizing, painting, polishing, sandblasting (via partner network)
Need a custom machining solution?
Reach out anytime by phone or online. Share your drawings, geometry, quantity, and material — we'll respond with the best solution within 1-2 business days.