Secure Changeover, Precise Positioning:
SVS Standards for Replaceable Electrodes
Replaceable electrodes are manufactured with high dimensional accuracy to conduct current and force precisely into the joint plane. The form-fit connection ensures consistent positioning in serial production. A precisely defined interface allows quick, tool-free electrode changes.
Machined contact faces reduce thermal stress and ensure even current distribution. Optional coated or treated versions are available to minimize sticking and make cleaning easier.
Available as standard version or custom-made based on your drawings or samples. Geometry, interfaces and material are precisely matched to your requirements.
Catalog
Standard Configurations
Exemplary Materials
| Drawing | Weld nut | Ø D | Cooling | G | SW | Action |
|---|---|---|---|---|---|---|
 | M4 | 4,5 - 6,5 | Non-Cooled | M14 X 1,5 | 19 | |
 | M4 | 4,5 - 6,5 | Cooled | M20 X 1,5 | 30 | |
| M5 | 5,5 - 7,5 | Non-Cooled | M14 X 1,5 | 19 | |
 | M5 | 5,5 - 7,5 | Non-Cooled | M14 X 1,5 | 24 | |
 | M5 | 5,5 - 7,5 | Cooled | M20 X 1,5 | 30 | |
 | M6 | 6,5 - 9 | Non-Cooled | M16 X 1,5 | 19 | |
| M6 | 6,5 - 9 | Non-Cooled | M16 X 1,5 | 19 | |
 | M6 | 6,5 - 9 | Cooled | M20 X 1,5 | 30 | |
 | M8 | 8,5 - 11,5 | Non-Cooled | M18 X 1,5 | 24 | |
 | M8 | 8,5 - 11,5 | Non-Cooled | M18 X 1,5 | 30 | |
| M8 | 8,5 - 11,5 | Cooled | M20 X 1,5 | 30 | |
 | M10 | 11 - 13,5 | Non-Cooled | M20 X 1,5 | 30 | |
M10 | 11 - 13,5 | Cooled | M26 X 1,5 | 36 | ||
M12 | 13 - 15,5 | Non-Cooled | M22 X 1,5 | 30 | ||
M12 | 13 - 15,5 | Cooled | M26 X 1,5 | 36 | ||
| 7/16 ZOLL UNF | 11 - 13,5 | Non-Cooled | M20 X 1,5 | 30 | |
7/16 ZOLL UNF | 11 - 13,5 | Cooled | M26 X 1,5 | 36 |
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 Replaceable Electrodes in Projection Welding
In projection welding, two components are joined at defined points through preformed weld projections. The electrode applies the required force and directs the welding current precisely into the joint area. Electrical resistance generates localized heat at the projections. They melt and bond with the mating sheet under pressure. After the current is switched off, the weld solidifies while the electrode force is maintained, forming a permanent metallurgical joint.
Key Parameters of Replaceable Electrodes
Geometry, material, and interface must be precisely matched to the welding system. This ensures stable current flow, reliable clamping, and accurate component alignment during high-volume production.
Only tightly toleranced electrode bodies can guarantee consistent and repeatable transfer of current and force with every projection weld. Even minor deviations lead to irregular nugget formation or misalignment in automated processes.
Mechanical stress and thermal loads can alter electrode geometry. Material and design must withstand these loads to maintain form during continuous operation.
Smooth contact surfaces support even current flow, maintain stable temperatures throughout the weld cycle, and minimize the risk of localized overheating in the joining zone.
Only well-defined shaft geometries ensure secure, repeatable seating. Inaccuracies affect alignment and lead to time-consuming adjustments during replacement.
Weld spatter can impair contact performance. Treated or coated surfaces reduce buildup and cleaning effort, supporting longer service life in high-frequency applications.
Offers
