Surface Treatment | CNC Finishing & Coating Services
CHX Metal provides surface treatment: anodizing, plating, passivation, powder coating, sandblasting for CNC parts. ISO 9001 certified, integrated with... Operations are certified to ISO 9001:2015 and ISO 14001:2015, with CMM inspection on every batch.
Capability at a Glance
| Item | Specification |
|---|---|
| Swiss-type turning | Ø1–20 mm, length ≤200 mm, ±0.005mm |
| CNC turning | Ø1–300 mm, length ≤600 mm, ±0.005mm |
| Turn-mill (one setup) | Ø5–200 mm, ±0.005 mm |
| 5-axis milling | up to 1000×600×500 mm, ±0.005 mm |
| Machines | 220 (100 5-axis + 50 CNC lathes + 70 Swiss-type) |
| Monthly capacity | 5,000,000 pcs |
| MOQ | 1 pc prototype / 100 pcs series |
| Lead time | Prototype 3–7 days / production 15–25 days |
| Materials | Al 6061/7075, SS 303/304/316L, brass C360, Ti TC4, PEEK, POM |
| Surface finish | Anodizing, sandblasting, Zn/Ni plating, passivation, black oxide |
| Quality system | ISO 9001:2015, ISO 14001:2015 |
CHX Metal (Shenzhen Changhexin Precision Hardware) provides integrated surface treatment for CNC parts: anodizing, plating, passivation, powder coating and sandblasting, ensuring corrosion resistance and appearance. ISO 9001:2015 certified.
Finishing We Provide
- Anodizing (Type II/III, clear/black/color)
- Plating: zinc, nickel, chrome
- Passivation (stainless)
- Powder coating
- Sandblasting and polishing
Integrated Process
Finishing is integrated with machining in one factory, reducing lead time and handling risk for critical parts.
Applications
- Aluminum housings
- Medical instruments
- Automotive brackets
- Consumer electronics
Quality
Coating thickness and adhesion tested per specification, with salt-spray testing available.
Frequently Asked Questions
What surface treatments do you offer? Anodizing, zinc/nickel/chrome plating, passivation, powder coating, sandblasting and polishing.
Is finishing done in-house? Yes. Surface treatment is integrated with CNC machining in our factory for faster lead times.
Do you test coating quality? Yes. Coating thickness, adhesion and salt-spray testing are available per spec.
Which parts need anodizing? Aluminum housings, frames and brackets for corrosion resistance and appearance.
Get a Quote → Upload your drawing/3D model for a process plan and quotation within 24 hours.
Materials We Process
Anodizing, sandblasting, plating, passivation, laser marking.
Scope of Service
- Type II/III anodizing
- zinc/nickel plating
- passivation and black oxide
Capability Highlights
Accuracy to cosmetic-grade control, verified on a CMM. Machine park includes 3/4/5-axis machining centers, CNC lathes and Swiss-type machines, with in-house fixture design and CAM simulation for first-pass success.
Quality System
Every order ships with in-process inspection records. Our CMM verifies critical dimensions against your drawing on first article, at batch start, and at final release. Material certificates (EN 10204 3.1) and full dimensional reports come standard; PPAP and FAIR documentation are available on request for automotive and industrial programs.
Lead Time & Packaging
Standard lead time is 3-7 days for prototypes and 7-15 days for production batches, with surface treatment adding 5-10 days. Parts are cleaned, protected against corrosion and scratching, and packed in customized trays or EPE foam for international shipping. DFM feedback on RFQs is returned within 24 hours.
Why Customers Stay
One supplier from drawing to finished part: milling, turning, 5-axis and Swiss-type machining are all in-house, together with anodizing, plating, laser marking, and silk-screen coordination. You get one accountable partner instead of a chain of subcontractors.
