Motor Shaft Factory | Custom CNC Machined Parts | Machining Accuracy ±0.005 mm

Precision machining plays a key role in the manufacturing of high-accuracy components, especially in motors, transmission systems, and industrial equipment. Shaft precision and stability directly affect overall operating performance. As a professional motor shaft factory in Taiwan, JIN YI CHERNG provides complete precision machining services, including CNC turning-milling processes, shaft design, and post-grinding operations. We also support OEM / ODM production based on drawings or samples, covering a wide range of requirements for custom cnc machined parts.

With strong engineering capability in shaft machining, we also handle various custom cnc machined parts for industrial applications, ensuring consistent quality from prototype to mass production.

Precision Shaft Design & Shaft Grinding Capability

Our motor shaft factory is equipped with advanced shaft design and grinding processes. Multiple grinding systems are used to improve roundness, concentricity, and surface finish, meeting the strict requirements of high-speed and heavy-load applications in shaft machining.

• Centerless grinding
• Step grinding
• Center pin precision grinding
• Outer diameter fine finishing

Machining Accuracy

• Dimensional tolerance can be controlled within ±0.005 mm, suitable for high-precision industrial components.
• Length tolerance: + / - 0.01mm
• Outer diameter tolerance: + / - 0.002mm
• Surface roughness: Ra ≤ 0.4 μm (0.4S equivalent)
• Circularity: ≤ 0.4 μm

CNC Machining Capability & Equipment

High-precision Swiss-type and Japanese CNC automatic lathes are applied in shaft machining and complex part production.

• Integrated CNC turning and milling (one-step forming)
• Threading, slotting, and drilling processes
• High-precision rotating shaft machining
• Flexible production for both small batches and mass production of custom cnc machined parts

Machinable Materials

1. Steel & Alloy Steel

• Suitable for high-load structural components
• Widely used in precision transmission and mechanical assemblies

2. Stainless Steel

• Suitable for corrosion-resistant and clean environments
• Common in precision shafts and industrial custom cnc machined parts

3. Aluminum & Copper Alloys

• Lightweight structural machining
• Used for heat dissipation and conductive components

Quality System & Process Management

• ISO 9001 quality management system
• IATF 16949 process control system
• IoT-based production monitoring
• Full inspection reports for every batch of shaft machining parts

With complete process monitoring and inspection systems, every batch of CNC precision machining and custom cnc machined parts maintains stable quality.