| Product Name | Precision CNC Milling Parts |
|---|---|
| Material Available | Aluminum |
| Surface Finish | Black Oxidation |
| Processing | CNC Milling |
| 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 |
| Engineer Support | Available for engineering assistance and drawings design |
| Packaging | Bubble and Carton or Customization |
|---|---|
| Port | Shenzhen |

|
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



| Order Type | Typical Lead Time | Notes |
|---|---|---|
| Prototype/Samples | 5-10 business days | Standard materials, simple geometries |
| Low Volume (1-100 pcs) | 10-20 business days | Includes setup and first article inspection |
| Medium Volume (100-1,000 pcs) | 3-4 weeks | Batch production with process optimization |
| High Volume (1,000+ pcs) | 4-8 weeks | Dedicated production runs, tooling optimization |
| Expedited Services | 50-100% premium | Available for urgent requirements |