Precision CNC Turned Parts Service Steel | ChenRong

Our precision cnc turned parts are manufactured using state-of-the-art CNC equipment, ensuring exceptional precision with tolerances as tight as +/-0.01mm. Each component undergoes rigorous quality inspection using advanced measurement tools including CMM, micrometers, and surface roughness testers.

We provide comprehensive custom machining services for steel materials, with flexible surface treatment options. Our production capabilities support both prototype development and volume production from 10 to 10,000+ pieces, meeting diverse industrial requirements.

• Machining & Fabrication Capabilities

  CNC Milling (3-, 4- & 5-Axis): Precision machining for complex geometries, housings, enclosures, brackets, and structural components. Tolerances down to ±0.005 mm for critical features.
  CNC Turning & Turn-Mill Machining: Precision shafts, bushings, threaded fittings, and custom rotational parts up to Ø1,000 mm.
  Swiss-Type Turning: High-precision machining for small, complex shafts, pins, connectors, and precision hardware.
  EDM, Wire EDM & Grinding: Precision processing for tight-tolerance profiles, complex features, and hard materials.
  Custom Tooling & Fixtures: In-house fixtures for faster setup and repeatable production.

• Advanced Machinery & Dimensional Verification

  Manufacturing Equipment: 3-, 4- & 5-axis CNC machining centers, CNC turning centers, Swiss-type lathes, EDM, wire EDM, and grinding machines.
  Inspection Equipment: Hexagon, ZEISS, and SEREIN CMMs, optical measurement systems, profile projectors, height gauges, micrometers, pin gauges, thread gauges, and surface roughness testers.
  Quality Documentation: First article, in-process, and pre-shipment inspection. CMM reports, dimensional inspection reports, and MTRs available upon request.

• Engineering Support & Surface Finishing

  DFM Review: Engineering feedback on materials, tolerances, tool access, wall thickness, and cost optimization before production.
  Surface Finishing: Type II & Type III anodizing, bead blasting, powder coating, passivation, black oxide, zinc/nickel plating, electropolishing, and laser marking / part serialization.