When the contact is right: SVS standards for contact tips
SVS contact tips for MIG/MAG applications ensure consistent current transmission and precise wire guidance, even under high cycle loads. Materials with high conductivity reduce thermal deformation. Tight bore tolerances and polished inner surfaces reduce wire friction, improve wire feed, and stabilize the arc.
Available in standard designs or as variants based on drawings or samples. We precisely match the inner diameter, thread shape, and material to the wire type, shielding gas, and process requirements.
Catalog
Catalog
Exemplary Materials
WIRBALIT® HF/N/G (CuCr1Zr), WIRBALIT® CA (CuAl2O3), ECU and nickel coating
| Description | Manufacturer | Manufacturer Article No. | Action |
|---|---|---|---|
Ø 6 x 35 mm | DINSE | Dix 3-1-0.8SA | |
Ø 6 x 35 mm | DINSE | Dix 3-1-1.0SA | |
Ø 6 x 35 mm | DINSE | Dix 3-1-1.2SA | |
Ø7,98 x 45 mm | DINSE | Dix 3-2-1.0SA | |
Ø7,98 x 45 mm | DINSE | Dix 3-2-1.2SA | |
M6 x 28 mm | DINSE | Dix 3-2-1.0CR-ZR | |
M6 x 28 mm | DINSE | Dix 3-2-1.2CR-ZR | |
1/4" x 34 mm | SKS | 40-4-7-0.8S | |
1/4" x 34 mm | SKS | 40-4-7-1.0S | |
1/4" x 34 mm | SKS | 40-4-7-1.2S | |
M6 x 40 mmm | OTC | L7250B01 | |
M6 x 40 mmm | OTC | L7250B03 / K980C31 | |
M6 x 40 mm | OTC | L7250B04 / K980C32 | |
M6 x 40mm | OTC | K980B86 | |
M8 x 30 mm | Binzel | 1,400,117 | |
M8 x 30 mm | Binzel | 1,400,316 | |
M8 x 30 mm | Binzel | 1470316 nickel-plated | |
M8 x 30 mm | Binzel | 1,400,445 | |
M8 x 30 mm | Binzel | 1,470,445 | |
M8 x 30 mm | Cloos | 62120003 | |
M8 x 30 mm | Cloos | 62120004 | |
M8 x 30 mm | Cloos | 62120003 | |
M8 x 30 mm | Cloos | 62120004 | |
M6 x 45 mm | Panasonic GmbH | TET01068 | |
M6 x 45 mm | Panasonic GmbH | TET01297 | |
M6 x 45 mm | Panasonic GmbH | TET01253 | |
M6 x 45 mm | Panasonic GmbH | TET01072 |
Upload your technical drawing – we develop the perfect solution for your production line.
Options
Material options
ECU (electrolytic copper) is the most economical and commonly used material for contact tips. With a Vickers hardness of 110–115 HV and a softening temperature starting at 250°C, it has limited mechanical strength. This design is particularly suitable for applications with low welding currents, such as welding steel and stainless steel wires.
Nickel-Plated ECU combines an electrolytic copper base with a nickel coating. The coating improves heat dissipation, reduces spatter adhesion, and lowers the risk of a short circuit between the gas nozzle and contact tip. Current transmission remains stable even with increasing load. In practice, this results in a good price-performance ratio: more powerful than pure ECU, more economical than CuCrZr.
Compared to ECU, CuCr1Zr (copper-chromium-zirconium) offers significantly better electrical and thermal conductivity. With a Vickers hardness of 168 HV, it reaches a softening temperature of 500°C. Despite its higher cost, the material offers up to three times longer service life.
WIRBALIT® CA is based on dispersion-strengthened copper with aluminum oxide. These contact tips combine high hardness with excellent heat resistance and are used wherever CuCrZr nozzles are subject to thermal overloaded. With their exceptionally long service life, they are particularly suitable for applications with very high duty cycles combined with extreme welding currents.
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 contact tips in MIG/MAG welding
In MIG/MAG welding, the contact nozzle guides the wire to the welding point and transfers the current from the torch to the wire electrode. The current flows along the inner surface of the bore into the wire and ignites the arc at the exit point. The resulting heat is dissipated toward the torch via the nozzle. The nozzle centers the wire on the torch axis and keeps it stable during the feed.
Quality-relevant features of MIG/MAG contact tips
The diameter of the bore must be precisely matched to the wire. Bores that are too large reduce the contact area and increase contact resistance. Bores that are too narrow impede wire feed and increase wear.
A smooth bore reduces abrasion and prevents buildup. Rough or damaged inner surfaces disrupt wire feed and destabilize the arc.
The bore must be centered to the nozzle axis. Only with a defined alignment does the wire exit straight and the arc remain stable. Deviations lead to lateral arc misalignment and uneven weld formation.
High-quality nozzles are abrasion-resistant, heat-resistant, and insensitive to buildup. Look for unusual deposits or wire-feed disturbances. These indicate premature wear.
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