Professional Automotive Wire Harness Manufacturing

Automotive Wire Harnesses

Automotive Wire Harness Assembly
Custom Harness Details
OEM Automotive Wire Harness Solutions

OEM Automotive Wire Harness Assembly Services

Chalong Fly manufactures automotive wire harnesses that combine power and signal wiring into a clean, reliable assembly. We support OEM/ODM projects from prototype sampling to mass production based on your drawing/BOM and application requirements.

IATF 16949 Ready
RoHS

Professional Wiring Solutions

  • Comprehensive Supply: Power harnesses, signal harnesses, and hybrid assemblies (project-based).
  • Flexible Branching: Advanced routing, labeling, and bundling for easier final installation.
  • Protective Options: Choice of braided sleeves, heat-shrink, corrugated tubes, or tape wrapping.
  • Pin-to-Pin Mapping: 100% verification of connector mapping and polarity control.

RFQ Checklist: Please provide 2D/3D drawings, connector part numbers, wire gauge, and environment requirements (temperature/waterproof needs).

Design Capability & QC Flow

We design for electrical integrity and installation practicality—stable crimping, strain relief, and abrasion protection.

  • Electrical Design: Wire gauge selection, branching logic, and voltage drop considerations.
  • Signal/EMI: Optional twisted pairs, shielding, and grounding strategies when required.
  • Manufacturing Excellence: Controlled crimping process, assembly checkpoints, and 100% continuity/short testing.

Typical Applications

  • Automotive: Passenger & commercial vehicles, body wiring, lighting, and sensor harnesses.
  • EV / Mobility: Auxiliary power, low-voltage control, and pumps/fans.
  • Industrial: Off-road equipment, AGV/AMR, and specialized carts.

Quality Controls: Pin-out/polarity verification, connector engagement check, and optional Hi-Pot/insulation resistance testing.

Mechanical & Materials
ConductorCopper (tinned copper optional)
InsulationAutomotive-grade PVC / XLPE / Silicone
ProtectionCorrugated tube / Braided sleeve / Heat-shrink
Wire GaugeProject-based (AWG / mm²)
Process & Compliance
Terminal ProcessCrimping standard (soldering optional)
Standard Test100% continuity & short test
LabelingPart No. / revision / QR traceability
MOQProject-based (prototype supported)

From Drawing to Mass Production

1) Input & Review (DFM): We collect your drawings/BOM, confirm wire gauges and connector systems, and provide manufacturability feedback.

2) Prototype & Validation: Produce samples for fitment and electrical verification, confirming assembly consistency.

3) Mass Production: Incoming material inspection, controlled crimping, and 100% EOL testing before safe delivery.

What you will get: A buildable BOM, stable harness quality with testing records, and scalable supply.

Automotive Wiring FAQs

What information do you need for a quotation?

Please share your 2D/3D drawing, BOM, connector part numbers, and quantity. Environment requirements (temperature/waterproof) are also helpful for material selection.

Can you build harnesses based on samples?

Yes, we can reverse-engineer from 1-3 physical samples. We will confirm the BOM and pin mapping with you before production.

Do you support waterproof connectors?

Yes. We support sealed connector systems and can add IP-rated protections like heat-shrink boots or specialized sealing accessories.

What tests are performed before shipment?

Our standard procedure includes 100% continuity and short-circuit testing. Project-specific tests like pull force or insulation resistance are also available.

What is your typical lead time for prototypes?

Prototype samples are usually ready within 7–15 days after confirming drawings and BOM. Mass production lead time depends on materials and quantity.

Can you provide QR code traceability?

Yes, we offer labeling for part numbers, revisions, and optional QR codes for full batch traceability.

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