When the Contact is Right:
SVS Standards for Contact Tips
Also referred to as contact tube, it is the smallest but most highly stressed wear part in the torch. High-conductivity materials minimize thermal deformation and extend service life. Tight bore tolerances and polished inner surfaces reduce wire friction, improve feed stability and help maintain a stable arc.
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
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 mm | OTC | L7250B01 | |
M6 x 40 mm | OTC | L7250B03 / K980C31 | |
M6 x 40 mm | OTC | L7250B04 / K980C32 | |
M6 x 40 mm | 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 |
Drawing parts required? Simply upload your file and get a quote.
Options
Material Selection
E-Cu (electrolytic copper) is the most economical and widely used material for contact tips. With a Vickers hardness of 110–115 HV and a softening point from 250 °C, its mechanical durability is limited. It is suitable for low-current applications, such as welding steel or stainless steel wires.
This version combines a high-conductivity E-Cu base body with a durable nickel coating. The plating improves heat dissipation, reduces spatter adhesion and lowers the risk of short circuits between contact and gas nozzles. It ensures stable current transfer even under increased load and offers a balanced cost-performance ratio. More capable than bare E-Cu and more economical than CuCrZr.
Copper-chromium-zirconium delivers significantly better electrical and thermal conductivity than E-Cu. With a hardness of 168 HV and a softening point of 500 °C, it maintains shape even under heavy duty. Service life is up to three times longer than with E-Cu.
Aluminum oxide–reinforced copper combines high hardness with outstanding thermal resistance and is used where CuCrZr tips reach their thermal limits. The material ensures exceptionally long service life at high duty cycles and extreme welding currents, providing stable performance even under demanding conditions.
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 Contact Tips in MIG/MAG Welding
The contact tip precisely guides the welding wire to the joint and ensures reliable current transfer from the torch to the wire electrode. Current flows through the bore into the wire and initiates the arc at the exit point. The arc melts the wire, and the molten metal is transferred into the weld pool, where it fuses with the base material to form a durable weld seam. The resulting heat is dissipated through the tip into the torch.
Key Parameters of Contact Tips
The bore diameter must match the wire with tight precision. If it is too large, the contact area decreases and resistance rises. If it is too small, wire feeding is restricted, wear increases and service life is reduced.
The bore must be positioned exactly along the tip axis. Only with correct alignment does the wire exit straight, ensuring a stable arc. Off-center bores shift the arc laterally and cause irregular bead formation.
A clean, smooth surface minimizes abrasion and prevents deposits. Rough or damaged areas interfere with wire feed and reduce arc stability.
High-grade tips offer resistance to wear, heat and spatter adhesion. Signs such as buildup inside the bore or irregular wire feeding indicate early wear and should be checked during operation.
