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
Liquid Cooling Connector | Precision CNC Cooling Connectors
CHX Metal (Shenzhen Changhexin Precision Hardware) produces liquid cooling connectors for data center cooling and EV battery thermal management, with dimensional tolerance ±0.005mm and 100% leak testing. ISO 9001:2015 certified. Engineering teams review drawings and return manufacturability feedback within 24 hours.
Liquid Cooling Connector Types
- Quick-disconnect couplings
- Threaded coolant fittings
- Cold plate connectors
- Manifold connectors
- Blind-mate connectors for server racks
Manufacturing for Sealing
- CNC machining of aluminum, stainless steel, brass
- Tolerance ±0.005mm on sealing surfaces
- 100% leak testing (pressure decay)
- Surface treatment: anodizing, passivation
- Cleanroom-compatible cleaning available
Applications
- Data centers: server liquid cooling loops
- EV batteries: thermal management connectors
- Energy storage: battery pack cooling
- Industrial: laser and power electronics cooling
Quality Assurance
ISO 9001:2015 certified. Every cooling connector undergoes 100% leak testing and dimensional inspection to ensure zero failure in thermal loops.
Frequently Asked Questions
What are liquid cooling connectors used for? They connect cooling loops in data centers, EV battery thermal management, energy storage and industrial power electronics.
How do you ensure leak-free connectors? Sealing surfaces are machined to ±0.005mm and every connector is fully leak tested by pressure-decay before shipment.
Which materials are used? Aluminum, stainless steel and brass, with anodizing or passivation for corrosion resistance.
Do you make custom connector geometries? Yes. We manufacture to customer drawings, including quick-disconnect, blind-mate and manifold connectors.
Get a Quote → Upload your drawing/3D model for a process plan and quotation within 24 hours.
Materials & Specifications
We machine liquid cooling connectors from Brass C3604, 6061, SUS316, O-ring sealed. Typical accuracy is ±0.005mm sealing surfaces. Parts are manufactured to your 2D drawing or 3D model, in sizes from a few millimeters up to 1000mm envelopes, from single prototypes to hundreds of thousands of pieces per year.
Typical Applications
- server cooling loops
- EV battery cooling
- laser and medical chillers
These are representative examples; we regularly take on custom geometries outside this list. Send your drawing for a feasibility check.
Our Machining Capability
Production runs on 3-axis and 5-axis vertical machining centers, CNC lathes, and Swiss-type automatic lathes. Fixtures are designed in-house for repeatable clamping, and programs are simulated before cutting to protect tight tolerances. 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.
Surface Finishing Options
Available finishes include Type II and Type III anodizing (clear, black, and custom colors), sandblasting, wire drawing, laser engraving and silk-screen marking, zinc and nickel plating, passivation, and black oxide. Cosmetic parts are inspected under standardized lighting with defined surface criteria.
MOQ, 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 Choose CHX Metal
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.
