Development and manufacture of MIG-MAG and TIG welding torches, including in-house tooling and testing to EN 60974-7.
HOLCH Schweißbrenner GmbH
SiegenNew on Amplifa
About Holch Schweißbrenner
HOLCH Schweißbrenner GmbH is a branded manufacturer of gas-shielded welding torches based in Siegen. The product range includes MIG-MAG welding torches and TIG welding torches in gas-cooled and water-cooled versions, as well as fume extraction torches, machine-side connection systems and hose packages. All production has taken place at the main plant in Siegen since the beginning, including assembly up to the ready-to-use torch with hose package. Plastic components such as grip shells, gas distributors, coverings, torch caps and connection nuts are injection-molded using in-house injection and compression molds in the thermoplastic process or compression-molded in the thermoset process; a pad printing process enables grip shells to be printed with customer logos. The torches are tested to EN 60974-7, bear the CE mark and are documented via declarations of conformity with test certificates. Through a network of repair shops and its own advertising department, the company supports its customers in Germany and abroad.
- Site
- Siegen
- Processes
- MIG-MAG welding torches (gas-cooled) – manufacture, MIG-MAG welding torches (water-cooled) – manufacture, TIG welding torches (gas-cooled) – manufacture, TIG welding torches (water-cooled) – manufacture, Fume extraction torches (air- and water-cooled) – manufacture, Machine-side connection systems for MIG-MAG and TIG incl. hose packages – production, Thermoset process (compression molding of grip shells, gas distributors, coverings, torch caps,, Thermoplastic process (injection molding of grip shells, gas distributors, coverings, torch caps,
- Materials
- Tungsten electrodes WP (green), Tungsten electrodes WT10 (yellow), Tungsten electrodes WT20 (red), Tungsten electrodes WL10 (black), Tungsten electrodes WL15 (gold), Tungsten electrodes WL20 (blue), Tungsten electrodes WR2 (turquoise), Tungsten electrodes WC20 (gray)
- Certificates
- ISO 9001:2015, EN 60974-7 testing, CE marking
- Industries
- Welding technology, Metal processing
- 01
Engineering / development of custom torches
- 02
Toolmaking (own injection and compression molds)
- 03
Compression molding (thermoset) / injection molding (thermoplastic) of the
- 04
Pad printing on grip shells
- 05
Assembly of the welding torches incl. hose package
- 06
Testing to EN 60974-7 and declaration of conformity
- 07
Packaging and distribution
Materials and Processes
Thermoset process (compression molding)
Grip shells, gas distributors, coverings of TIG torch bodies, torch caps and connection nuts are compression-molded in the thermoset process.
Thermoplastic process (injection molding)
Plastic components of the torches are injection-molded in the thermoplastic process using in-house tools.
Tungsten electrode WP (green)
Pure tungsten electrode for TIG welding, color-coded green.
Tungsten electrode WT10 (yellow)
Tungsten electrode with oxide additive for TIG welding, color-coded yellow.
Tungsten electrode WT20 (red)
Tungsten electrode with oxide additive for TIG welding, color-coded red.
Tungsten electrode WL10 (black)
Alloyed tungsten electrode for TIG welding, color-coded black.
Tungsten electrode WL15 (gold)
Alloyed tungsten electrode for TIG welding, color-coded gold.
Tungsten electrode WL20 (blue)
Alloyed tungsten electrode for TIG welding, color-coded blue.
Tungsten electrode WR2 (turquoise)
Alloyed tungsten electrode for TIG welding, color-coded turquoise.
Tungsten electrode WC20 (gray)
Alloyed tungsten electrode for TIG welding, color-coded gray.
Tungsten electrode WZ8 (white)
Alloyed tungsten electrode for TIG welding, color-coded white.
Locations
Siegen
DEMain plant / production / sales
- Materials
- Thermoset, thermoplastic, metal components, tungsten electrodes
- Injection and compression molds (in-house manufacture)
- Pad printing
- Testing equipment to EN 60974-7
Components and Products
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| MIG-MAG welding torches (gas-cooled) – manufactureAssembly | – | – | – | – | – |
| MIG-MAG welding torches (water-cooled) – manufactureAssembly | – | – | – | – | – |
| TIG welding torches (gas-cooled) – manufactureAssembly | – | – | – | – | – |
| TIG welding torches (water-cooled) – manufactureAssembly | – | – | – | – | – |
| Fume extraction torches (air- and water-cooled) – manufactureAssembly | – | – | – | – | – |
| Machine-side connection systems for MIG-MAG and TIG incl. hose packages – productionAssembly | – | – | – | – | – |
| Thermoset process (compression molding of grip shells, gas distributors, coverings, torch caps,Plastics | – | – | – | – | Duroplast |
| Thermoplastic process (injection molding of grip shells, gas distributors, coverings, torch caps,Plastics | – | – | – | – | Thermoplast |
| Pad printing on grip shells (customer logo)Surface | – | – | – | – | – |
| Heating test and safety tests to EN 60974-7 (visual inspection, impact resistance,Testing | – | – | – | – | – |
| Development of custom torches and special fabricationsEngineering | – | – | – | – | – |
Additional services
Quality
All welding torches are tested to EN 60974-7 (including heating test, impact resistance, insulation resistance, dielectric strength) and bear the CE mark; a declaration of conformity with test certificate is available for every torch. The quality management system is certified to ISO 9001:2015.
| Evidence | Siegen |
|---|---|
| ISO 9001:2015 | |
| EN 60974-7 testing | |
| CE marking |