With the explosive growth of the Electric Vehicle (EV) market in the United States, demand for high-performance automotive wire harnesses meeting UL standards is soaring. Changzhou Kunbo Electromechanical Technology Co., LTD's high-speed silicone automotive wire extrusion line, specifically developed for the North American market, successfully addressed the strict requirements for temperature resistance (above 150℃) and high flexibility faced by local customers in manufacturing EV battery pack and engine compartment cables.

Case Details: Breaking the Barriers in EV Wire Harness Manufacturing

• Client Background: A leading Tier 1 automotive parts supplier in Michigan, USA, specializing in high-voltage EV harnesses and sensor cable manufacturing.

• Market Pain Points:

  1. Traditional PVC/PE materials could not meet the required long-term temperature resistance standards of 150 ℃ and above for EV engine compartments.

  2. The need to produce silicone-insulated cables with ultra-fine conductors required equipment with exceptional extrusion uniformity and rapid vulcanization efficiency.

• Our Solution:

  The core advantages of our exported KV-120EV High-Speed Silicone Automotive Wire Extrusion Line] include:

  • Dedicated Silicone Screw Design: Utilizes a special compression ratio and structure to ensure uniform plasticization of the silicone material before entering the die, maintaining stable extrusion pressure.

  • Hot Air Vulcanization (HAV) System: Equipped with a high-precision, 20-meter-long tunnel-type vulcanization oven, achieving rapid and complete cross-linking of the silicone through precise temperature control, while meeting UL vertical flame test requirements.

  • High-Speed Take-Up/Pay-Off: Supported by a high-precision dual-spool coiler, ensuring the finished cable does not deform or damage the insulation layer during high-speed operation

 Results and Value

The client successfully mass-produced UL-compliant silicone automotive harnesses, increasing production capacity by 30% and gaining a significant competitive edge in the highly competitive North American EV supply chain.