Web Menu

Product Search

Language

Share

Zhejiang Jingliang Copper-Tube Products Co., Ltd

Wholesale Automotive Copper Tubing

Automotive Copper Tubing

-- Steady & Reliable Manufacturer --

High-Performance Copper for the Automotive Industry

Automotive copper tubing is an indispensable component in the modern vehicle’s architecture, serving as the lifeblood for braking, cooling, and fuel systems. In an industry where safety and reliability are non-negotiable, copper and its alloys offer the mechanical durability and chemical stability required to survive the harsh environment of an engine bay or undercarriage. At Zhejiang Jingliang, we manufacture automotive-grade copper tubing that adheres to the strictest global standards, including SAE J527 and ISO 4038. Our tubing is specifically designed to handle the high-vibration, high-pressure, and temperature-fluctuating conditions found in passenger cars, heavy trucks, and electric vehicles (EVs). By using high-purity C12200 phosphorus-deoxidized copper, we ensure that our tubes provide the necessary ductility for complex bending and flaring while maintaining the structural integrity to prevent leaks over the vehicle's entire lifespan.

The shift toward Electric Vehicles (EVs) has further increased the demand for precision copper tubing. In EVs, copper is not only used for hydraulic lines but also plays a critical role in thermal management systems for battery packs and power electronics. Our specialized automotive tubing features a mirror-smooth internal surface to minimize fluid resistance and a precisely controlled grain size to facilitate high-speed automated forming. We also offer various external coatings, such as PVF (Polyvinyl Fluoride) or zinc-nickel plating, to enhance resistance against salt spray and road debris. Every millimeter of our automotive tubing undergoes rigorous testing, including eddy current inspection and high-pressure burst testing, ensuring that Tier-1 suppliers and OEMs receive a product that eliminates the risk of field failures and supports the move toward safer, more efficient transportation.

Automotive Technical Specs & Parameters

PropertyAutomotive Specification
Material GradeC12200 (Cu-DHP), C11000 (ETP)
Applicable StandardsSAE J527, DIN 74234, ISO 4038
Outer Diameter (OD)3.18mm to 15.88mm (1/8" to 5/8")
Wall Thickness0.7mm, 0.8mm, 0.9mm (High Precision)
Burst PressureUp to 1,200 Bar (Dependant on Wall)
Vibration ResistanceTested for 10 million cycles (fatigue)
Surface Coating OptionsBare, PVF Coated, Zinc-Nickel Plated
Elongation (%)Min 40% (For double-flare capability)
Inside Cleanliness< 0.10 mg/m² residue

Critical Vehicle Systems Integration

The most critical application for automotive copper tubing is in Hydraulic Brake Lines, where it must withstand thousands of pounds of pressure during emergency stops while resisting corrosion from moisture-laden brake fluid. It is also extensively used in Fuel Delivery Systems for both gasoline and diesel engines, providing a fire-safe and leak-proof path for fuel. In the emerging EV market, our copper tubes are used in Battery Cooling Plates, where they circulate coolant to maintain optimal battery temperatures. Other applications include transmission oil cooler lines, power steering circuits, and HVAC refrigerant lines for climate control. Due to its excellent thermal conductivity, it is also used for heater core assemblies and radiator components. The material's ability to be formed into tight radii without kinking makes it perfect for the cramped spaces within modern engine compartments and chassis layouts.

Advantages for Automotive Manufacturers

The primary advantage of our automotive copper is "Fatigue Resistance." Engine vibrations and road shocks can cause other metals to work-harden and crack, but our annealed copper retains its flexibility, absorbing energy without fracturing. "Corrosion Protection" is another key benefit; copper is naturally resistant to the internal chemistry of brake and transmission fluids. When combined with our advanced external coatings, it provides industry-leading resistance to external salt and moisture. Furthermore, our tubes offer "Fabrication Efficiency." The consistent ductility of our copper allows for high-speed automated "Double Flaring" and bending, which reduces cycle times on the assembly line. Lastly, copper is 100% recyclable, helping automotive manufacturers meet increasingly strict end-of-life vehicle (ELV) regulations and sustainability goals. By choosing Jingliang, OEMs benefit from a material that balances cost, performance, and environmental responsibility.

Packaging and OEM Supply Chain

We supply automotive tubing in LWC (Level Wound Coils) for high-speed production lines or in precision-cut straight lengths for specific chassis components. Payment terms are typically 30% T/T deposit and 70% against B/L, with customized credit terms available for Tier-1 automotive partners. We pack our LWC coils on sturdy pallets with moisture-proof shrink-wrap to prevent oxidation during sea transit. For straight lengths, we use reinforced crates to ensure no bending occurs. Our logistics team is expert at "Just-In-Time" (JIT) delivery, coordinating with global automotive hubs to ensure that your production line never stops. We provide full PPAP (Production Part Approval Process) documentation, Mill Test Certificates, and RoHS compliance to satisfy the rigorous quality management systems (IATF 16949) of the automotive industry.

  • Q: Can I use your copper for high-pressure diesel lines?
  • A: For common-rail diesel systems with ultra-high pressures, we recommend our specialized heavy-wall C12200 tubes or copper-nickel alloys.
  • Q: What is the benefit of PVF coating?
  • A: PVF (Polyvinyl Fluoride) provides an additional layer of protection against stone chipping and harsh chemicals, extending the life of brake lines in snowy or coastal regions.
  • Q: Do you support custom bending?
  • A: Yes, we can provide pre-formed tube assemblies based on your CAD drawings to reduce your in-house assembly labor.
ABOUT US
30+YEARS OF
EXPERIENCE
About Us

A Reliable Partner of the Copper Tube Industry

Zhejiang Jingliang Copper-Tube Products Co., Ltd is China Automotive Copper Tubing and Automotive Copper Tubing Factory, which established in 1994, has been deeply involved in the copper tube industry for over three decades. The company primarily produce various specifications of products such as copper tubes, brass tubes, copper square tubes, fin copper tubes, copper capillary tubes, condenser copper tubes, copper evaporator tubes, and conductive rods, which are of quality and have earned the trust and acclaim of customers both domestically and internationally.

Wide Applications:

These products are widely used in various fields including air conditioning, refrigeration, heat exchange, sanitary ware, automotive, machinery, electric furnaces, and chemical industries.

Convenient Transportation:

Strategically located in Tangpu Town, renowned as the “home of copper tubes” in East China. Our company enjoys a prime location, adjacent to the Shangsan Expressway and National Highway 104, and is conveniently situated just over 70 kilometers from Hangzhou and Ningbo, ensuring easy accessibility and a business position.

Strong Financial Resources:

With its strong financial resources and advanced copper tube processing technology, our company holds an advantageous position in market share, brand value, technological content, and product quality, becoming a preferred supplier for many listed groups.

Large Scale Production:

The company occupies an area of over 20,000 square meters, with a construction area of 12,800 square meters. In 2022, our annual production exceeded 7,500 tons, with a value output of up to 450 million yuan, demonstrating our strong production capacity and market competitiveness.

Comprehensive Industry Chain:

Jingliang has now developed into a complete industrial chain integrating smelting, extrusion, drawing, precision rolling, and annealing. It has been awarded multiple honors, including "Top Ten Copper Tube Enterprises" and "Leading Taxpayer in the Copper Tube Industry".

Smart Manufacturing:

Jingliang Copper-Tube Products will better integrate the concept of factory construction into its corporate development strategy, insist on refining technology and polishing products more finely, and the future of "intelligent manufacturing".

Genuine Cooperation:

Zhejiang Jingliang Copper-Tube Products Co.,Ltd warmly welcomes friends from all walks of life to visit and offer guidance. We look forward to joining hands with you to create a brilliant future together.

Message Feedback

  • AC & Refrigeration Copper Tubing
  • Sanitary Copper Tubing
  • Dehydrated Copper Tubing
  • Copper Nickel Alloy Tubes
    • X Facebook
    Products News