High-Conductivity Copper Busbar

Our copper busbars serve as the backbone of modern power distribution systems. Manufactured from high-purity electrolytic copper (C11000 equivalent, Cu ≥99.90%) through continuous extrusion, precision drawing, and straightening, they deliver outstanding electrical conductivity, tight dimensional tolerances, and excellent mechanical strength.

From standard flat bars to custom-shaped profiles, we supply copper busbars in a wide range of dimensions and surface finishes — bare, tin-plated, silver-plated, and nickel-plated — to meet diverse requirements for oxidation resistance, corrosion protection, and solderability. Whether for low-voltage switchgear, busway systems, or new energy applications, our busbars provide reliable, low-loss current transmission.

• High-Purity Material, Stable Conductivity
  Made from ≥99.90% pure copper with resistivity as low as ≤0.01777 Ω·mm²/m, achieving conductivity above 97% IACS. This minimizes power loss and heat generation in the conductor.

• Precision Manufacturing, Tight Tolerances
  Our CNC-controlled drawing and straightening lines ensure width and thickness tolerances strictly comply with international standards, delivering flat contact surfaces, reduced contact resistance, and a perfect fit during installation.

• Flexible Customization
  We produce rectangular, trapezoidal, and special-shaped busbars with widths from 10 mm to 300 mm and thicknesses from 2 mm to 30 mm. Lengths are cut to your exact requirements, with additional deep-processing services such as drilling, bending, and tapping.

• Surface Treatments for Any Environment

  • Bare Copper: Cost-effective, suitable for dry indoor environments.

  • Tin-Plated: Excellent oxidation resistance, lower contact resistance, ideal for humid or outdoor applications.

  • Silver-Plated: Highest conductivity, perfect for high-frequency, high-reliability connections.

  • Nickel-Plated: Superior corrosion resistance, ideal for acidic or marine environments.
    All plating layers exhibit strong adhesion and uniform thickness, passing rigorous salt spray testing to ensure no discoloration or peeling over time.

• Robust Mechanical Performance
  With tensile strength ≥220 MPa and elongation ≥30%, our busbars withstand thermal expansion and short-circuit stresses without deformation or cracking, ensuring long-term grid safety.

• Certified Quality, Export-Ready
  Our products conform to IEC 61439, GB/T 5585.1, and equivalent standards, and can be supplied with SGS, RoHS, and REACH compliance reports. They seamlessly integrate into switchgear, distribution boxes, data centers, and renewable energy systems worldwide.

These are typical specifications. We manufacture strictly to your drawings or samples.

• Low & Medium Voltage Switchgear – Main and branch busbars for reliable power distribution

• Busway Systems – Conductors for sandwich-type and air-insulated busbar trunking

• Renewable Energy – DC side connections in PV combiner boxes, inverters, and energy storage systems

• EV & Charging Infrastructure – High-voltage power distribution units and charging pile internal connections

• Data Centers – Server power busbars and UPS interconnections

• Industrial Automation – Power loops inside VFDs, servo drives, and motor control centers

• Railway & Marine – Traction systems and auxiliary power supplies

• Precision Cutting: Clean, burr-free cuts to specified lengths

• Drilling & Punching: Round holes, slotted holes, and countersinks per your drawings

• CNC Bending: L-shaped, Z-shaped, U-shaped, and complex profiles with tight angle tolerances

• Insulation Solutions: Heat-shrink tubing, insulating boots, and epoxy powder coating for a turnkey package

• Secure Packaging: Wooden pallets, cartons, and moisture-proof wrapping to prevent damage and oxidation during transit

• 18+Years of copper processing expertise with a mature quality control system

• In-house testing equipment including optical emission spectrometers, conductivity meters, and video measuring systems — every batch is inspected before shipping

• Small trial orders welcome; standard sizes can ship in 3–7 days

• One-on-one engineering support, including ampacity calculations and design recommendations

• Reliable global logistics and documentation support

Get a quote, request a sample, or talk to an engineer today.

• Phone / WhatsApp: +86 18861115916

• Email:cyun9641@gmail.com

• Online Inquiry Form: Click here to submit your requirements

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