Precise projection alignment: SVS standards for replaceable electrodes
Our replaceable electrodes are manufactured to tight tolerances, delivering current and force directly into the joining interface. The form-fitting design of the weld element ensures repeatable alignment in series production. A precisely defined interface enables fast, tool-free replacement. Machined contact surfaces maintain optimal temperatures and support even current distribution. Optional coated or surface-treated variants are available to reduce adhesion and simplify cleaning.
Available in standard sizes or as a custom design based on your drawings or samples. Geometry, material, and design are tailored precisely to your fixture and process requirements.
Catalog
Catalog
Exemplary Materials
| Drawing | Weld nut | Ø D | Cooling | G | SW | Action |
|---|---|---|---|---|---|---|
 | M4 | 4,5 - 6,5 | Unrefrigerated | M14 X 1,5 | 19 | |
 | M4 | 4,5 - 6,5 | Chilled | M20 X 1,5 | 30 | |
| M5 | 5,5 - 7,5 | Unrefrigerated | M14 X 1,5 | 19 | |
 | M5 | 5,5 - 7,5 | Unrefrigerated | M14 X 1,5 | 24 | |
 | M5 | 5,5 - 7,5 | Chilled | M20 X 1,5 | 30 | |
 | M6 | 6,5 - 9 | Unrefrigerated | M16 X 1,5 | 19 | |
| M6 | 6,5 - 9 | Unrefrigerated | M16 X 1,5 | 19 | |
 | M6 | 6,5 - 9 | Chilled | MM20 X 1,5 | 30 | |
 | M8 | 8,5 - 11,5 | Unrefrigerated | M18 X 1,5 | 24 | |
 | M8 | 8,5 - 11,5 | Unrefrigerated | M18 X 1,5 | 30 | |
| M8 | 8,5 - 11,5 | Chilled | MM20 X 1,5 | 30 | |
 | M10 | 11 - 13,5 | Unrefrigerated | M20 X 1,5 | 30 | |
M10 | 11 - 13,5 | Chilled | MM26 X 1,5 | 36 | ||
M12 | 13 - 15,5 | Unrefrigerated | M22 X 1,5 | 30 | ||
M12 | 13 - 15,5 | Chilled | MM26 X 1,5 | 36 | ||
| 7/16 ZOLL UNF | 11 - 13,5 | Unrefrigerated | M20 X 1,5 | 30 | |
7/16 ZOLL UNF | 11 - 13,5 | Chilled | MM26 X 1,5 | 36 |
Upload your technical drawing – we develop the perfect solution for your production line.
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).
SVS Performance Features
For over 60 years, we have been a reliable partner in welding technology for manufacturers worldwide.
Applications
The function of replaceable electrode in projection welding
In projection welding, two components are joined at defined locations by raised contact points, known as weld projections. The electrode establishes contact with the component surface, applies the required pressure, and directs the welding current precisely into these projections.
Electrical resistance generates heat at the projection, locally melting the material, which fuses under pressure. Once solidified, the parts are permanently bonded. The shape of the electrode determines how evenly current and heat are delivered into the joining zone.
Quality-relevant features of replaceable electrodes
The electrode’s geometry, material, and interface must be engineered to match the used welding system. Only with precise integration can current flow, force application, and part handling function reliably in automated cycles.
Only precisely manufactured electrode bodies ensure consistent transmission of current and force in every weld. Even minor deviations can result in irregular nugget formation and positioning errors during series production.
Mechanical stress and thermal loads can alter electrode geometry. The material and design must ensure the electrode retains its shape even under high cycle rates.
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. Variations compromise alignment and require time-consuming adjustments during replacement.
Weld spatter can impair the function of the contact surface. Treated or coated versions facilitate cleaning and extend service life, especially during high cycling operations.
Offers
