The Right Fit for Every Welding Gun:
SVS Standards for Shanks and Holders
Shanks and holders made from high-conductivity copper alloys are manufactured with tight tolerances to ensure precise fit during use. Optional harder alloys are available to extend service life and reduce cleaning requirements.
Bent, offset and straight versions are available in standard sizes. Custom designs can be produced based on drawings or samples. Geometry, interface and material are matched exactly to your specifications.
Catalog
Standard Configurations
Exemplary Materials
WIRBALIT® HF/N/G (CuCr1Zr), WIRBALIT® CA (CuAl2O3), and WIRBALIT® D (CuNi2.5SiCr)
Where installation requires an angled layout, SVS offers bent holders and shanks in various standard sizes or made to your drawing.
Bent Holders and Shanks
Where installation requires an angled layout, SVS offers bent holders and shanks in various standard sizes or made to your drawing.
Bent Holders and Shanks
Ensure low-resistance transmission of current and force. Available in ISO 5183-1 standard sizes or custom-made to fit your process.
Straight Holders and Shanks
Ensure low-resistance transmission of current and force. Available in ISO 5183-1 standard sizes or custom-made to fit your process.
Straight Holders and Shanks
Drawing parts required? Simply upload your file and get a quote.
We ensure the quality of your welding processes.
We process highly conductive copper components with a defined and verified purity level. All current-carrying surfaces are precisely machined and optimized for minimal contact resistance.
All components are manufactured in Germany and precisely matched to your application. Standard designs are available from stock, ensuring short delivery times and maximum flexibility.
Tight tolerances, stable production equipment, and consistent clamping conditions ensure reliable dimensional accuracy and repeatable results across all production runs.
Our products are subject to strict quality inspections. For special requirements, individual tests are carried out according to defined specifications.
Flexibility is our strength. Our products are available in numerous variants and can be manufactured with high precision to fit your system requirements.
For decades, we have contributed our expertise to SVS products and, as an active member of the German Welding Society (DVS), have helped shape technical standards.
SVS Capabilities
For over 60 years, we have been a reliable partner for manufacturers worldwide in welding technology.
Fundamentals
Function of Electrode Shanks and Holders in Spot Welding
Shanks and holders connect the electrode to the welding gun. They transfer welding current from the transformer to the electrode tip, apply force to the weld zone and mechanically secure the electrode in position.
At the same time, they act as an interface to the cooling system and support the dissipation of process heat. This enables controlled energy input, causing the material at the contact point to melt due to electrical resistance and form a metallurgical bond.
In this setup, the holder is permanently installed in the welding gun, while the shank serves as the replaceable component that holds the electrode cap. This modular design simplifies maintenance and ensures accurate part replacement without system misalignment.
Key Parameters of Electrode Shanks and Holders
Electrical conductivity and heat dissipation are directly influenced by the alloy composition. High-conductivity copper materials with sufficient heat resistance maintain connection stability and ensure consistent welding conditions.
Low-tolerance manufacturing ensures full contact at mating surfaces and precise electrode guidance. Even minor deviations impair force transmission and disrupt even current flow during welding.
Exact matching of dimensions and interface geometry to collet and electrode shape is critical. Only a perfect fit ensures a stable, repeatable seat and allows for tool-free electrode changes without realignment.
Uniform contact surfaces prevent local resistance and uncontrolled heat buildup. Clean, burr-free transitions ensure steady current flow and reduce thermal wear.
Alloys with high thermal stability and low recrystallization tendency improve form retention under load and reduce material loss in the contact zone.
A precise fit in the clamping system allows quick replacement during operation. Accurate interface geometry prevents twisting or misalignment and ensures repeatable electrode positioning.
