Copper busbars

Conductive components for power distribution

Copper busbars are a key element in modern electrical installations, power distribution and control systems. The bars transfer current between components and systems, and their electrical and thermal properties directly affect

Material and conductor capacity

Copper busbars are typically manufactured from electrolytic copper (Cu-ETP) with high conductivity.

Material purity is crucial because even small variations can affect heat generation and current carrying capacity.

Machining processes – precision and stability

Copper busbars are machined through several processes that together ensure correct geometry, hole patterns, surfaces and surface quality. 1. Cutting and adjustment The bars are measured and cut to the required length

CNC milling of hole patterns and geometries

Hole patterns are a critical element in copper busbars. Variations can affect electrical contact, assembly and heat generation. TORA’s CNC process ensures: tolerances down to +/- 0.05 mm consistent placement of centre-to-centre dimensions correct

Bending – geometry and mechanical stability

Bending copper busbars requires precise processes, as copper is both soft and formable. An incorrect bend can cause: uneven conductor width internal stresses changes in conductor capacity misalignment in assembly TORA works with: controlled bending pressure back tension

Tin-plating, coating and insulation

Surface treatment plays an important role for copper busbars – both electrically and in terms of corrosion. Tin-plating used to improve contact surfaces reduces oxidation stabilizes surface resistance ensures longer lifetime in installations Insulation PVC PE coating heat shrink special

Deburring and finish

Edges and surfaces are checked and processed to ensure: true surfaces for correct contact no sharp edges flatness of surfaces uniform finish This is an important factor for both electrical performance and safe assembly.

Technical Information

CNC turning (3 units): max Ø450
CNC turning with robot (1 unit): max Ø250
CNC milling (5 units): max length = 4000 mm
CNC milling with robot (1 unit): max length = 800 mm

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TORA A/S is a modern steel manufacturer with more than 30 years of documented experience. From precision components to complete production series, we deliver certified steel and metal components for wind energy and other demanding industries.

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TORA has a long tradition of delivering high-quality products. This is largely based on the quality of the materials and components we source. TORA continuously evaluates suppliers to ensure competitive and reliable supply chains.

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