Laminated Copper Busbar

A laminated copper busbar consists of multiple layers of C11000 copper foil stacked together, with both ends bonded through molecular diffusion welding — a process that applies heat and pressure to fuse the foil layers into solid contact surfaces. This construction delivers extremely high current-carrying capacity combined with a degree of flexibility to absorb thermal expansion and mechanical offset.

Laminated copper busbars offer four key advantages: extremely high current-carrying capacity with minimal resistance ideal for high-current applications; sturdy laminated construction capable of withstanding compression and impact; smooth and flat contact surfaces ensuring high installation fit and superior mating; and effective vibration damping and compensation that absorbs noise and movement generated during equipment operation.

We offer two main types: Laminated Copper Busbar With Welded Ends, featuring molecularly diffusion-welded terminal blocks for maximum contact integrity; and Laminated Copper Busbar With Insulation, incorporating PVC, TPE, or silicone insulating materials for applications requiring electrical isolation between layers or at installation points.

To process your order, please specify: Length (L) × Width (W) × Thickness (T), connector shape and hole type, hole diameter (d), and single foil thickness (default 0.10mm). Our engineering team is available to assist with sizing and configuration for your specific current and installation requirements.

Laminated copper busbars are widely used in metallurgical industries such as aluminium, zinc, and copper electrolysis; chemical fields including electroplating and ionic membrane caustic soda production; transformers, power distribution cabinets, and generators; and power transmission and transformation projects in power plants and substations.

Surface finishes available include bare copper, tin plating, nickel plating, and silver plating. Tin plating enhances solderability and corrosion resistance; silver plating improves contact performance at high temperatures and high current densities; nickel plating provides superior resistance to oxidation and harsh chemical environments.