Flexible power transmission: SVS standards for lamella shunts

Lamella shunts consist of stacked copper laminates that are uniformly compressed under defined pressure. Large-area transitions between laminates ensure low contact resistance. Electrical continuity is maintained across all layers, even under thermal or mechanical stress. Connection zones are machined and prepared for screw, solder, or welded connections.

Available in standard dimensions or as custom versions based on drawings or samples. The number of laminates, strip width, and connection zones are precisely adapted to your equipment and process requirements.

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What lies behind consistent manufacturing quality

  • All components are manufactured in Germany and can be precisely tailored to your application. Standard versions are immediately available, ensuring short delivery times.

  • Manufactured with tight tolerances on high-performance machines with stable clamping systems and consistent tool settings to prevent dimensional deviations across series.

  • Consistently machined contact surfaces with low roughness reduce contact resistance and promote even current distribution across the weld zone.

  • All electrodes undergo quality-assured testing. For demanding use cases, we offer individual testing according to defined specifications.

  • We offer bespoke designs based on your technical specifications. Geometry and material are co-developed with your team to meet your production requirements.

  • Decades of experience shape every SVS product and contribute to the development of technical standards as an active member of the German Welding Association (DSV).

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Applications

Core function of lamella shunts

Lamella shunts are used wherever current-carrying connections must remain flexible, such as between the welding gun and the transformer or between the electrode arm and the holder. They compensate for movements caused by pulsing, lifting, or pivoting, ensuring a stable power supply during operation.

The shunts consist of multi-layered, pressed copper strips. Each layer can move against each other, absorbing mechanical stress. At the same time, the current is distributed across the entire cross-sectional area. This reduces contact resistance and maintains the current-carrying capacity even under frequent use.

Quality-relevant features of lamella shunts

  • The copper lamellas must combine high conductivity with dimensional stability. An additional coating protects against oxidation and ensures consistently high contact quality.

  • The quality of the compression determines how evenly current and heat are distributed across the strips. Irregular compression pressure leads to hot spots and impairs current transmission.

  • The connection areas must be flat, burr-free, and dimensionally accurate. This is the only way to ensure low-loss current transmission in the clamping area without micro-movements or arcing.

  • Repetitive movements lead to mechanical fatigue. The right combination of the lamella count and cross-section maintains contact quality throughout the entire service life.

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