Custom Cable Assembly & Wire Harness Factory China

What Is a Cable Assembly and Wire Harness Factory?

A cable assembly and wire harness factory manufactures custom cable assemblies — combinations of cables, connectors, and terminations built to a specific drawing or specification. Wire harnesses are bundles of wires or cables organized for a specific routing path, commonly used in automotive, industrial, and consumer electronics.

These factories differ from standard cable manufacturers because they focus on custom assembly — cutting, stripping, crimping, soldering, overmolding, and testing to a buyer's exact requirements.

Cable Assembly vs. Wire Harness

Cable Assembly Capabilities

• Cutting and stripping: Automatic and semi-automatic, 0.5mm to 50mm²
  
• Crimping: Hand, semi-auto, and fully automatic crimping
  
• Soldering: Hand soldering, wave soldering, hot-bar
  
• Overmolding: PVC, TPE, TPU, custom shapes
  
• Ultrasonic welding: For wire splicing and termination
  
• Testing: Continuity, hipot, pull test, AQL inspection
  
• Sleeving: Heat shrink, braided sleeve, spiral wrap, tubing
  

Industries Served

• Automotive (engine harnesses, sensor cables, EV cables)
  
• Industrial automation (PLC cables, M12, sensor cables)
  
• Medical devices (patient monitoring, imaging, disposable sensors)
  
• Consumer electronics (USB, HDMI, power, audio)
  
• Telecommunications (fiber, Cat6, RJ45, coax)
  
• Aerospace and defense (mil-spec, high-reliability)
  
• Renewable energy (solar, battery, EV charging)
  

Quality Standards

Frequently Asked Questions

Q: What is the MOQ for custom cable assemblies?
A: MOQ varies. For simple assemblies, MOQ can be 100–500 pcs. For complex harnesses with custom tooling, MOQ is typically 500–2,000 pcs. Some factories support low-MOQ prototyping.

Q: How do I send my cable assembly design?
A: Provide 2D/3D drawings, a BOM, or a physical sample. If you only have a concept, the factory's engineering team can help design it (ODM service).

Q: Can the factory handle automotive-grade harnesses?
A: Yes, if the factory is IATF 16949 certified and experienced with automotive connectors (TE, Molex, Delphi, Yazaki). Always confirm automotive experience before ordering.

Q: How long does prototyping take?
A: For simple assemblies, 3–5 days. For complex harnesses with new tooling, 7–15 days.

Q: What testing is included?
A: Standard testing includes continuity, short circuit, and visual inspection. Additional testing (hipot, pull test, temperature cycling) is available on request.