| Product Name | Precision CNC Milling Parts |
| Material Available | Steel |
| 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 |

Achieves tight dimensional tolerances (down to ±0.005mm) and consistent geometries across batch production, eliminating human-induced errors.
Suitable for processing aluminum alloys, stainless steel, titanium, brass, engineering plastics and composite materials.
Creates intricate shapes such as 3D contours, deep pockets, internal threads, and custom cavities.
| Operation | Equipment/Process | Capability | Typical Tolerances |
|---|---|---|---|
| CNC Turning | Live tooling on mills, separate lathes | Turning features on milled parts | ±0.01mm |
| Grinding | Surface, cylindrical, jig grinders | Precision flatness, parallelism, size | ±0.002mm |
| EDM | Wire and sinker EDM | Complex geometries, hard materials | ±0.005mm |
| Heat Treatment | Vacuum furnaces, atmosphere controlled | Hardening, tempering, stress relief | Material dependent |
| Welding | TIG, laser, electron beam | Component assembly, repair | ±0.05mm after weld |
| Assembly | Press fits, adhesive, fastening | Multi-component assemblies | As per drawing |
| Finish Type | Process Method | Surface Ra (μm) | Characteristics & Applications |
|---|---|---|---|
| As-Machined | Standard CNC milling | 0.8-3.2 | Cost-effective, visible tool marks, general applications |
| Bead Blasting | Glass bead, aluminum oxide | 0.8-1.6 | Matte finish, uniform appearance, stress relief |
| Polishing | Mechanical, chemical, electro | 0.025-0.4 | Reflective, smooth, food, medical, optical |
| Anodizing | Type I-III, hardcoat (Al) | Base material dependent | Decorative, corrosion resistant, wear resistant |
| Plating | Nickel, chrome, zinc, tin | Varies | Corrosion protection, appearance, solderability |
| Powder Coating | Electrostatic application | N/A (coating) | Durable, color options, corrosion protection |
| Passivation | Nitric or citric acid (SS) | Base material finish | Corrosion resistance restoration |
| Laser Marking | Fiber, YAG lasers | N/A (marking) | Permanent identification, serialization, logos |
| Tumbling/Vibratory | Media finishing | 0.4-1.6 | Deburring, edge breaking, surface smoothing |

RFQ Submission: Provide drawings (PDF/DWG), 3D models (STEP/IGES/SLDPRT), specifications
Technical Review: Engineering assessment, DFM analysis, process planning (24-48 hour response)
Quotation: Detailed pricing with breakdown (material, setup, machining, finishing)
Prototype Phase (if required): Sample production with full inspection report
Production Approval: Process validation, inspection plan agreement
Manufacturing: Scheduled production with milestone updates (weekly/daily)
Final Inspection: Complete FAIR or dimensional report before shipping
Delivery: Appropriate packaging, shipping with tracking, customs documentation
|
Production Type |
Standard Lead Time |
Expedited Options |
Factors Affecting Lead Time |
|
Prototype (1-10 pcs) |
5-15 business days |
3-5 days (+30-50%) |
Material availability, complexity, fixturing |
|
Low Volume (10-100 pcs) |
10-25 business days |
5-10 days (+25-40%) |
Tooling requirements, secondary operations |
|
Medium Volume (100-1,000 pcs) |
3-5 weeks |
2-3 weeks (+20-35%) |
Production scheduling, capacity |
|
High Volume (1,000+ pcs) |
6-12 weeks |
4-8 weeks (+15-30%) |
Material procurement, dedicated production runs |
|
Large Parts (>1m dimension) |
4-10 weeks |
3-6 weeks (+25-50%) |
Special handling, machine availability |
Standard Packaging: Poly bags with desiccant in partitioned cartons
ESD-Sensitive: Antistatic bags, conductive foam, static-dissipative containers
Cleanroom Packaging: Double-bagged, cleanroom compatible materials
VCI Protection: Volatile corrosion inhibitor papers/films for ferrous metals
Custom Fixturing: CNC-machured foam inserts, custom racks, reusable containers
International Shipping: Export-rated crates, climate-controlled options available
Global Shipping: Relationships with major carriers (DHL, FedEx, UPS)
Export Documentation: Commercial invoice, packing list, certificate of origin
Compliance Documentation: Material certifications, RoHS/REACH declarations
Inventory Management: Consignment stock, bonded warehousing, kanban systems
Just-In-Time Delivery: Scheduled deliveries aligned with production schedules