Precision Shafts
Motor Shaft
Multi-step motor shafts with grooves and keyways, ground finish for bearing fits.
Example: Ø8.0 × 101.7 mm
Swiss-Type CNC Machining · Made in Vietnam
Precision shafts, pins & rollers,
machined to your print.
Chung Yuk Precision Technology (Vietnam) runs 30 Swiss-type CNC lathes — 42 machines in total — for export buyers in Europe, the US and Japan. ISO 9001:2015 certified, with tight tolerances, traceable quality and on-time delivery from Ho Chi Minh City.
42
Machines in total · 30 Swiss-type lathes
±5µm
Typical tightest diameter tolerance
Ø2–26mm
Bar diameter capacity
100%
Export-focused production
* Tolerance and diameter figures are typical capability references; confirm against your part drawing and our QC data.
Who We Are
A precision turning shop built for overseas buyers
Chung Yuk Precision Technology (Vietnam) Co., Ltd. operates from BW Supply Chain City Industrial Park in Ho Chi Minh City, southern Vietnam's leading manufacturing and logistics hub. We machine small-diameter precision parts to customer drawings and specifications — shafts, pins, rollers and custom turned components.
Our focus is the high-mix, mid-to-high precision work that European, American and Japanese buyers rely on: consistent first-article quality, documented processes and dependable lead times. Swiss-type CNC turning is our core process, supported by in-house grinding, knurling and turn-mill capacity, plus coordinated heat treatment and surface finishing.
Quality first
Drawing-driven inspection at every stage, with measured data available on request.
On-time delivery
Stable scheduling and capacity visibility to protect your production line.
Competitive cost
Vietnamese manufacturing cost structure without compromising precision.
Engineering support
DFM feedback and clear English communication from quote to shipment.
Our Products
Turned parts for motor, automotive and industrial applications
A snapshot of our typical production range. Every part is made to customer drawing — the specs below are format examples.
Precision Shafts
Precision Shaft
Small straight shafts for electric devices, tight diameter control and fine surface.
Example: Ø4.0 × 23.8 mm
Pins
Grooved Pin
Grooved and knurled pins for secure press-fit assembly, various steel grades.
Example: Ø3.0 × 24.0 mm
Rollers
Precision Roller
Cylindrical rollers and follower pins, centerless-ground for roundness and size.
Example: Ø9.53 × 13.6 mm
Pins
Hinge Pin
Head pins and hinge pins with drilled or threaded ends per customer drawing.
Example: Ø4.0 × 25.0 mm
Custom Turned Parts
Custom Turned Component
Shafts, bushings, spacers and special profiles — send your drawing for a DFM review.
Per drawing
Don't see your part? Our capability range covers most small-diameter turned work.
Send Your RFQ
Capabilities
The numbers behind the parts
Swiss-type turning is built for small diameters, complex geometry and tight tolerances in a single setup.
| Bar diameter | Ø2 – 26 mm |
|---|---|
| Max. turning length | up to 400 mm (bar-fed) |
| Diameter tolerance | ±0.005 mm typical |
| Special tolerance | ±0.001 mm by agreement |
| Surface roughness | Ra 0.4 – 1.6 µm (ground) |
| Batch size | prototypes to series production |
Materials we machine
- S45C / S15C
- SUM24L
- SCM415
- SUJ2
- SUS303
- SUS304
- SUS430
- SUS420J2
- C3604 Brass
- SWCH10A
RFQ & DFM review
We review drawings, tolerances and material choice, and flag risks before quoting.
Quotation & planning
Transparent pricing with clear lead time and payment terms in English.
First-article inspection
FAI with measured report; production starts only after your approval.
Swiss-type CNC production
Turning, milling, drilling and tapping in one setup on sliding-headstock lathes.
Grinding & secondary ops
Centerless grinding, knurling; coordinated heat treatment, plating and salt-bath nitrocarburizing.
Final QC & export packing
Final inspection, export-grade packaging and shipping documentation.
Equipment
A shop floor built around sliding-headstock turning
42
Machines in total, 30 of them Swiss-type CNC lathes
High machine count means flexible capacity allocation: urgent orders, repeat programs and multiple part programs can run in parallel, with room for new customer ramp-up.
- 30 × Swiss-type CNC lathessliding headstock, bar-fed
- Turn-mill & gang-tool CNClive tooling, sub-spindle
- 2 × centerless grindersthrough-feed / in-feed
- 3 × knurling machinesstraight / diamond pattern
- 2 × internal / OD honingprecision bore & O.D. finish
- QC instrumentsmicrometers, gauges, hardness tester
Quality Assurance
Inspection built into every batch
Quality is controlled by process, not luck — from incoming material to outgoing parts.
Stage 01
Incoming material control
Material certificates checked and retained; bar stock verified against order specification before it reaches the floor.
Stage 02
In-process checks
Operators perform scheduled checks with calibrated instruments; critical dimensions are confirmed at setup and during the run.
Stage 03
Final & outgoing inspection
Final dimensional check against drawing before packing; inspection reports and material traceability available on request.
Certified Management System
ISO 9001:2015
Our quality management system is certified by CTIC Certification under the IAF Multilateral Recognition Arrangement, covering the manufacturing and mechanical processing of metal components.
Why Made in Vietnam
Supply-chain advantages without a learning curve
Tariff & trade access
Vietnamese origin opens favorable duty treatment for many export destinations, with a wide network of free trade agreements.
Strong logistics hub
Our park links directly to southern Vietnam's major ports and international airports, keeping freight fast and reliable.
Competitive cost
Lower operating costs than China, Thailand or Japan — savings passed on while precision standards stay high.
Export-experienced team
English communication, international documentation and export packing handled in-house, with no broker friction.
Our Clients
Trusted by manufacturers at home and abroad
Client Logo 01
Client Logo 02
Client Logo 03
Client Logo 04
Client Logo 05
Contact Us
Send your drawings. Get a quote fast.
Share your part drawings, material and expected quantity — we reply with pricing, lead time and DFM feedback in English.
Email
Factory
Factory No. 5 (Production Area Type 1), Lot TR-C-07, Tien Phong 7 Street, BW Supply Chain City Industrial Park, Ho Chi Minh City, Vietnam
Working hours
Mon – Sat, 8:00 – 17:30 (ICT, UTC+7)