Custom Precision Parts.
Drawing to Doorstep.
40 years of difficult-material expertise. Stainless, titanium, Inconel, Duplex — single-piece prototypes to volume production. Quote within 1-2 business days. Serving semiconductor, aerospace, medical, oil & gas, and tuning industries.
40+
Years of experience
10+
Professional machines
500+
Clients served
1000+
Product varieties
Materials × Lead Time — what Weiyon delivers, at a glance
The two things B2B procurement cares about most. 30 seconds to judge if we fit.
From general grades to difficult alloys — 40+ grades machinable.
Quotes within 1-2 business days. Standard orders 7-14 days. Rush negotiable.
Our Services
Comprehensive solutions from traditional machining to high-tech applications
CNC Precision Machining
Turning, milling, 4-axis. Tolerances down to ±0.005 mm. From single prototypes to volume production.
Semiconductor Equipment Parts
Chamber components, wafer-handling mechanisms, vacuum parts. Integrated surface treatments for cleanliness specs.
Robotics & Automation Parts
Mechanism parts, grippers, motion-axis components, locating blocks for collaborative robots and production lines.
Aerospace Precision Parts
UAV and satellite components, lightweight structures. Experience with titanium and ultra-high-strength aluminum.
Pneumatic / Hydraulic Parts
Cylinder bodies, pistons, bearing seats, sealing seats. Durability and seal integrity in equal measure.
Automotive & Industrial Parts
Engine peripherals, drivetrain, chassis structures. OEM-grade quality with inspection reports available.
From semiconductor to tuning — precision across industries
Over 40 years our clients have spanned high-demand industries — each with its own standards, materials, and QC expectations. We know them all.
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
An audit-ready supplier — not your blind spot
Aligned with global procurement due-diligence checklists: emissions disclosure, supply-chain declaration, material traceability, QC documentation — all on one page.
4-Stage Internal QC
IQC incoming → FAI first article → IPQC in-process → FQC final, each step documented
CBAM Form-Filling Service
Embedded-emissions calculation per GHG Protocol — data ready for your EU import declaration
Global Supply-Chain Due Diligence
Aligned with LkSG, EU CSDDD, UK Modern Slavery Act, Dodd-Frank Sec. 1502, and similar frameworks
EN 10204 3.1 / 3.2
Mill certs + FAI / PPAP, issued per customer procurement requirements
When other shops shake their heads and say"It can't be done"
we are often the next call our customers makenext call
Three core strengths — quality, lead time, and fair pricing — for clients across Taiwan and overseas.
Difficult Materials Specialist
Stainless steel, titanium alloys, molybdenum, cemented carbides — materials most shops avoid, we machine.
One-Stop Integrated Manufacturing
CNC turning/milling, EDM, sheet metal, surface treatment — a single point of contact for the full process.
Short Lead Time · High Quality
From one-off prototypes and small batches to production runs — delivered with fair pricing, short lead times, and consistent quality.
Ready to start your project?
Contact us for a professional quote — our team will respond as quickly as possible.