Optimized service life for series production: SVS standards for welding wheels
Manufactured with high dimensional accuracy and made from heat-resistant, conductive materials such as WIRBALIT® HF/N/G and WIRBALIT® B, our welding wheels ensure reliable use in cyclical operation. Machined contact surfaces ensure smooth transitions and keep the temperature within the permissible range. Wear-critical zones are hardened and optionally coated to extend service life and prevent buildup.
Available in standard versions as well as customized versions based on drawings or samples. We precisely tailor the geometry, material, and interface to your system 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).
SVS Performance Features
For over 60 years, we have been a reliable partner in welding technology for manufacturers worldwide.
Applications
The functions of welding wheels in resistance seam welding
In resistance seam welding, the upper and lower roller seam electrodes press two overlapping sheets together and conduct a targeted welding current through the joining zone. The electrical resistance generates heat at the contact points, melting the material at specific points.
Each current pulse forms a single weld nugget. As the roller seam electrodes move evenly along the overlap, these nuggets line up closely or overlap slightly. Upon solidification, they bond to form a continuous weld. An integrated water cooling system protects the electrodes from overheating and ensures a constant temperature throughout the entire process.
Quality-relevant features of welding wheels
The electrode alloy must combine high electrical conductivity with thermal stability. Only with the optimal balance of both properties can heat input be controlled precisely and the risk of local overheating avoided.
During operation, the electrode is subject to mechanical stress. A hardened or coated surface protects against abrasion, reduces adhesion, and ensures consistent current transmission even at high cycle rates.
The electrode geometry must be precisely manufactured to ensure that the current and contact force are evenly distributed into the joining zone. Even small dimensional deviations affect the force transmission and lead to seam misalignment.
The material, hardness, and geometry of the upper and lower electrodes must be perfectly matched. Only as a single unit can they ensure reproducible weld quality. We will work with your team to determine which combination deliver optimal results in your specific process environment.
The service life varies significantly depending on the material, hardness, and manufacturing quality. In series production, electrodes with constant removal rate facilitate the planning of change intervals and help reliably prevent seam deviations.
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