About CHX Metal — Precision CNC Manufacturer Since 2013
Shenzhen Changhexin Precision Hardware Co., Ltd. (CHX Metal) is an ISO 9001:2015 & ISO 14001:2015 certified precision CNC machining manufacturer based in Shajing, Bao'an, Shenzhen — one of China's most concentrated precision manufacturing clusters. Founded in 2013, CHX Metal operates 220 production machines including:
- 100 5-axis machining centers
- 50 CNC lathes (46-type, dia. 1–300mm, concentricity ±0.005mm)
- 70 Swiss-type automatic lathes (dia. 1–300mm)
Monthly capacity: 5,000,000 pieces (5 million PCS). Tolerance ±0.005mm. All products include CMM inspection reports (coordinate measuring machine) and material test reports (MTR).
Contact: mc@chxmetal.com | +86 18138850989 (WhatsApp) | Mon–Sat 09:00–18:00 UTC+8
Steel CNC Machining | Precision Steel Components
CHX Metal machines precision steel parts (304/316L/carbon/alloy) with ±0.005mm tolerance, heat treatment and plating. Custom CNC machining from drawings or The factory covers 5,000 m2 and produces up to 5 million precision parts per month.
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 steel CNC machining for stainless (304/316L), carbon and alloy steel with dimensional tolerance ±0.005mm, including heat treatment and surface plating. ISO 9001:2015 certified.
Steel We Machine
- Stainless 304/316L/303
- Carbon steel (Q235/45#)
- Alloy steel (4140/4340)
- Tool steel
- Spring steel
Process
- CNC milling and turning
- Heat treatment (quench/temper)
- Plating: zinc, nickel, chrome
- Black oxide
- Passivation
Applications
- Automotive brackets and shafts
- Medical instruments
- Industrial fixtures
- Hydraulic components
Quality
ISO 9001:2015 certified, CMM inspected, with material certificates and heat-treatment records.
Frequently Asked Questions
What steel grades can you machine? Stainless 304/316L/303, carbon steel, alloy steel 4140/4340, tool steel and spring steel.
Do you provide heat treatment? Yes. We provide quench/temper heat treatment and plating (zinc, nickel, chrome) plus black oxide.
What tolerance for steel parts? Dimensional tolerance ±0.005mm with CMM inspection.
Which industries use your steel parts? Automotive, medical, industrial automation and hydraulics.
Get a Quote → Upload your drawing/3D model for a process plan and quotation within 24 hours.
Materials We Process
45#, 40Cr, 20CrMnTi, SKD11, GCr15.
Scope of Service
- gears and shafts
- tooling and dies
- structural steel parts
Capability Highlights
Accuracy to ±0.005mm, hardened HRC48-62, 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
Quality is verified, not assumed. First article inspection is mandatory on every new part number, and our quality engineers record CpK on critical dimensions for volume programs. With a coordinate measuring machine (CMM), surface roughness testers, and a temperature-controlled inspection room, measurement uncertainty is kept far below the tolerances we quote.
Lead Time & Packaging
Quotations with manufacturability feedback are returned within 24 hours of receiving your drawing or 3D model. Prototypes ship in 3-7 days; production orders run 7-15 days depending on quantity and finishing. Export packing uses anti-scratch film, VCI paper, or custom trays so parts arrive ready for your assembly line.
Why Customers Stay
Engineering support is included, not extra. Our CAM engineers review every drawing for manufacturability and cost reduction before quoting, and flag tolerance or finish decisions that materially affect price. Customers typically save 10-25% on program cost after this review.
