China CNC Machining Micro Precision Knurling Shafts Factory - Trusted Suppliers for Quality Manufacturing
CNC machining micro precision knurling shafts are slender, small-diameter shaft parts processed by precision CNC machining, with standardized or custom knurling patterns on the surface. Unlike standard knurled shafts, our micro versions focus on ultra-small outer diameters, tight dimensional tolerances, and consistent knurling texture, suitable for devices with limited installation space and strict precision requirements. The knurling surface enhances grip, anti-slip performance, and assembly stability, matching high-demand micro-assembly workflows.
We produce micro precision knurling shafts with Swiss-type CNC lathes and integrated knurling tools, ensuring one-stop forming without secondary clamping. This process eliminates positioning errors and guarantees concentricity, straightness, and knurling consistency.
- One-piece machining for outer diameter, length, groove, and knurling
- High repeatability for mass production, stable part consistency
- Supports fine knurling, straight knurling, diamond knurling, and custom patterns
- No burrs, no deformation, even for ultra-small diameter shafts
CNC micro precision knurling shafts are widely used in high-precision fields with strict size and reliability demands:
- Automotive Electronics: Sensor shafts, micro-adjustment shafts, seat mechanism pins
- Medical Devices: Surgical instrument shafts, portable device drive shafts
- Consumer Electronics: Precision gear shafts, motor shafts, adjustment knobs
- Industrial Automation: Micro transmission shafts, robot joint pins
- Optical Equipment: Calibration shafts, positioning shafts, fine-tuning components
We support full custom development for micro precision knurling shafts to match your drawings and assembly needs:
- Custom outer diameter, length, and step structure
- Custom knurling pattern, pitch, and coverage area
- Custom hole, groove, thread, and cross-hole features
- Flexible order volumes: Prototypes, small batches, mass OEM production
- Fast sample lead time: 7–10 days for sample approval
Every CNC machining micro precision knurling shaft undergoes full inspection before shipment, in line with IATF 16949 and ISO 9001 standards:
- 100% dimensional inspection using Mitutoyo calipers, micrometers, and vision measuring machines
- Knurling profile and depth verification
- Hardness and surface treatment testing
- Salt spray test for corrosion resistance (customizable)
- Full inspection reports and material certificates available
To protect precision surfaces and avoid damage during transit:
- Single-piece anti-scratch PE wrapping + EPE shockproof positioning
- Partitioned carton packaging to prevent friction and extrusion
- Moisture-proof, anti-rust treatment for long-distance ocean shipping
- Pallet packaging available for bulk orders
- Clear labeling for model, quantity, and batch for easy warehousing