Precision CNC Turning Parts for Auto Components with ISO9001 Certified and 100% Inspection
OEM Manufacturer specializing in high-precision CNC turning parts for automotive applications.
| Product Name | CNC Turning Parts |
|---|---|
| Material Available | Aluminum |
| Processing | CNC Turning |
| Tolerance | ±0.002~0.005mm |
| Drawing Accepted | IGES(igs), STEP(stp), SolidWorks (sodprt), PRT, AutoCad, or Samples |
| Inspection | CMM, Projector, Height Gauge, etc. |
| Lead Time | 7~35 working days |
| Quality Assurance | ISO9001:2015, SGS, RoHs |
| Payment Term | MoneyGram, Western Union, T/T, D/P, D/A, L/C |
| Price | According to your drawing or requirements |
| Packaging | Bubble and Carton or Customization |
|---|---|
| Port | Shenzhen |

CNC turning parts offer high precision (tolerances up to ±0.005mm) and consistent quality, ensuring they fit perfectly in assemblies. They have smooth surface finishes (Ra 0.8-3.2μm) and can be made into different shapes—like cylindrical, threaded, or grooved designs—to match various industrial needs. These parts work with many materials (aluminum, steel, stainless steel, brass) and provide good durability, including wear and corrosion resistance. They're produced efficiently, support small-batch or mass customization, and are widely used in automotive, electronics, hardware, and aerospace industries.
| Operation | Equipment Used | Capability/Specification |
|---|---|---|
| CNC Milling | 3/4/5-axis mills | Cross-holes, flats, keyways, complex features |
| Drilling/Tapping | CNC drill units | Deep hole (up to 10× diameter), micro-drilling (Ø0.3mm+) |
| Grinding | Cylindrical grinders | ID/OD grinding, surface grinding |
| Heat Treatment | Vacuum furnaces | Hardening, tempering, stress relieving, annealing |
| Welding | TIG, laser welders | Precision welding for assemblies |
| Assembly | Cleanroom facilities | Press fits, adhesive bonding, mechanical fastening |
| Finish Type | Process | Typical Ra Value | Characteristics |
|---|---|---|---|
| As-Machined | CNC turned | 0.8-3.2μm | Cost-effective, tool marks visible |
| Polished | Mechanical polishing | 0.1-0.4μm | Reflective, smooth, cosmetic quality |
| Anodized | Type II/III anodizing | 0.4-1.6μm | Decorative, corrosion resistant (Al) |
| Plated | Electroplating | Varies | Chrome, nickel, zinc, tin coatings |
| Passivated | Chemical treatment | Base material finish | Corrosion resistance (stainless) |
| Painted/Powder Coated | Spray application | Varies | Color options, additional protection |
| Black Oxide | Chemical conversion | Base material finish | Mild corrosion resistance, appearance |
- Multi-Sensor CMMs: 3D measurement with 0.001mm accuracy
- Optical Comparators: Profile projection with 20× to 100× magnification
- Surface Roughness Testers: Portable and benchtop Ra/Rz measurement
- Hardness Testers: Rockwell, Brinell, Vickers, and micro-hardness
- Thread Gauges: Complete sets to ISO/ANSI standards
- Digital Calipers/Micrometers: 0.001mm resolution, calibrated regularly
- Roundness Testers: Concentricity and cylindricity measurement
- Force Measurement: Torque testing, spring constant verification
- ISO 9001:2015 certified quality management system
- First Article Inspection (FAIR): AS9102/PPAP documentation available
- Statistical Process Control (SPC): Real-time monitoring of critical dimensions
- Material Traceability: Mill test certificates, heat/lot number tracking
- Calibration Program: All inspection equipment calibrated to NIST standards
- Document Control: Revision-controlled drawings and specifications



To ensure part corrosion resistance, aesthetics, and specific functionality, we offer comprehensive post-processing services:
- Plating: Zinc Plating, Nickel Plating, Chrome Plating, Tin Plating
- Coating: Powder Coating, Spray Painting, E-Coating
- Chemical Treatment: Anodizing (for Aluminum), Passivation (for Stainless Steel), Black Oxide
- Mechanical Treatment: Polishing, Brushing, Deburring
Quality is our cornerstone. We implement a full-process quality control system:
- Certification: ISO 9001:2015 Quality Management System Certified
- Inspection Equipment: Equipped with CMM, Optical Comparators, Calipers, Micrometers, Salt Spray Test Chambers, Hardness Testers, etc.
- Process Control: Implement full-process monitoring from Incoming Quality Control (IQC), In-Process Quality Control (IPQC) to Final Outgoing Quality Control (OQC)
- Documentation Support: Can provide PPAP (Production Part Approval Process), FAI (First Article Inspection) Reports, Material Certificates, etc.
- Inquiry & Consultation: You provide drawings (DXF/DWG/STEP/IGS), samples, or detailed requirements
- Design & Quotation: Our engineering team conducts DFM (Design for Manufacturability) analysis and provides a detailed solution with a competitive quote
- Tooling Development: Upon order confirmation, we commence precision die design and manufacturing
- Sample Approval: We provide first article samples for your testing and approval
- Mass Production: After sample approval, we initiate automated mass production
- QC & Delivery: Final inspection, professional packaging, and shipment as scheduled
- Expert Engineering Support: Free DFM advice to optimize your design for cost savings
- Rapid Response: 24-hour inquiry reply, fast prototyping (typically 7-15 days)
- Flexible Customization: Full OEM/ODM support, manufacturing strictly to your specifications
- Global Supply Experience: Products exported to North America, Europe, Asia, etc., familiar with international standards and logistics
Packaging: Standard export packaging options include blister trays, bubble bags, EPE foam, cartons, and wooden crates to ensure parts are free from wear and deformation during transit.
Shipping: Support various trade terms (FOB, CIF, DDP, etc.). Global shipping via sea freight, air freight, or express couriers (DHL, FedEx, etc.).
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.