Reliable wire guidance for extended service life: SVS standards for UP contact tips
A precisely toleranced guide hole keeps the wire exactly on track and prevents direct contact between the tip and the weld pool. Heat-resistant materials minimize abrasion and guarantee a stable wire guidance even under high loads.
Our contact tips are available in all standard sizes. We manufacture custom-made products according to drawings or samples to fit your application perfectly.
Products
Catalog
Exemplary Materials
| Drawing | Length | Thread | Wire Ø | Material | Action |
|---|---|---|---|---|---|
 | 29.8 | M12 | 0,8 - 1,8 | WIRBALIT® HF / B / D | |
 | 37 | M10 | 0,8 - 1,8 | WIRBALIT® HF / B / D | |
 | 39 | 9/16 - 18 UNF-2A | 0,8 - 1,8 | WIRBALIT® HF / B / D | |
 | 44 | 1/2 UNF | 0,8 - 1,8 | WIRBALIT® HF / B / D | |
 | 48 | M16x1.5 | 0,8 - 1,8 | WIRBALIT® HF / B / D | |
 | 60 | M16x1.5 | 0,8 - 1,8 | WIRBALIT® HF / B / D | |
 | 55/65/76 | M16/M16x1.5 | 0,8 - 1,8 | WIRBALIT® HF / B / D | |
 | 55/65/75 | M16/M16x1.5 | 0,8 - 1,8 | WIRBALIT® HF / B / D | |
 | 65 | M16x1.5 | 0,8 - 1,8 | WIRBALIT® HF / B / D | |
 | 65 | M16/M16x1.5 | 0,8 - 1,8 | WIRBALIT® HF / B / D | |
 | 54 | 17.1 | 0,8 - 1,8 | WIRBALIT® HF / B / D |
Upload your technical drawing – we develop the perfect solution for your production line.
Available materials
Material options
The copper-beryllium-cobalt alloy CuCo2Be impresses with a hardness of over 200 HV and exceptional compressive strength. It resists plastic deformation even under high mechanical stress, short cycle times, and high point pressure – ideal where conventional electrodes wear out prematurely. Learn more
CuNi2.5SiCr is a nickel-silicon-chromium alloy with high heat resistance and good mechanical stability. The material remains dimensionally stable even at operating temperatures above 300°C and shows a low tendency to embrittlement. It is suitable for processes with medium duty cycles where thermal cycles and structural loads occur simultaneously. Learn more
The copper-chromium-zirconium alloy (CuCr1Zr) is characterized by low recrystallization sensitivity and high dimensional stability during prolonged heating. With a hardness of up to 185 HV, high electrical conductivity, and excellent heat dissipation, it offers reliable wear protection – ideal for applications with constant thermal stress and high dimensional accuracy requirements. Learn more
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
Function of the contact tips in submerged arc welding
In submerged arc welding, the contact tip guides the wire electrode vertically through the welding powder toward the workpiece. During the process, a cavity with an arc forms below the powder bed. In this area, the wire electrode melts and bonds with the base material.
The tip is not only part of the electricity supply, but also controls the position at which the wire enters the cavity. Its position directly influences the location of the arc within the molten slag and therefore the formation of the weld seam.
The surrounding powder cap ensures that the arc remains completely covered and at the same time allows uniform heat input into the molten weld metal.
Key parameters of SAW contact tips for optimum welding quality
During welding, high thermal stress occurs at the current contact point. The tip must dissipate this heat quickly to prevent local overheating. Materials with high thermal conductivity reduce the risk of wire adhesion, deformation, and malfunction.
The bore is precisely matched to the wire diameter. If it is too wide, the wire loses secure contact, which increases the contact resistance and makes the arc unstable. If it is too narrow, friction increases, leading to wire jamming and increased wear on the wire and nozzle. Only with the optimal bore size can the process run reliably and evenly.
Electrical current is transferred via direct contact between the wire and the inner surface of the tip. Deposits or poor surface quality increase the contact resistance and impair mechanical guidance. This leads to an unstable arc, voltage losses, uneven heat input, and wire deviation. Only a high-quality surface guarantees a reliable welding process.
The nozzle keeps the wire exactly on axis as even small deviations cause lateral arc offset, which impairs seam shape and weld quality. Precise guidance minimizes vibrations and prevents tilting, enabling stable and error-free welding processes.
During the welding process, wire friction, temperature, and mechanical stress have a permanent effect on the tip material. This causes abrasion in the guiding hole, which changes the internal geometry over time. This can lead to disturbances in electrical current transmission and increased material wear.