
Development and manufacture of components, assemblies and special solutions for welding equipment – since 1978.

Wollnitzke – Komponenten & Baugruppen für Schweißtechnik
Selb-Spielberg · GroßräschenNew on Amplifa
Components and assemblies for welding technology since 1978
The family-run company Wollnitzke, based in Selb (Bavaria), has been developing and manufacturing components and assemblies for welding equipment since 1978. The portfolio includes device components for various types of welding equipment, customised special solutions and new developments, as well as ready-to-install mechanical assemblies including the procurement of standard and purchased parts. Production is carried out to drawing or sample – from individual parts and prototypes through to series production with recurring call-offs. The value chain includes assembly of mechanical assemblies, function testing to defined test criteria, dimensional reports and test reports, as well as marking, packaging and logistics to customer standards. The portfolio in the field of rectifier construction is expanded through HW Gleichrichterbau GmbH, founded in 1994 in Großräschen. Customers include welding equipment manufacturers, service providers for repair and retrofit, and industrial companies with special requirements in welding technology.
- Site
- Selb
- Processes
- Machining to drawing or sample, from individual parts to series, Assembly of mechanical assemblies to customer specifications (ready-to-install, incl. procurement, Function testing to defined test criteria, dimensional reports, test reports, sampling up to 100, Development of special solutions, new developments and special assemblies/components for, Rectifier construction (HW Gleichrichterbau GmbH, Großräschen), Development of special solutions and new developments, Manufacture to drawing or sample, Series production and call-offs
- Materials
- Machining to drawing or sample, Development & new developments, Assembly of assemblies, Function testing, Rectifier construction
- Certificates
- Function testing to test criteria, Dimensional reports and test reports, 100 % inspection possible
- Founded
- 1978
- Industries
- Welding equipment manufacturers, Repair and retrofit, Industrial special solutions
- 01
Enquiry & documentation
- 02
Feasibility check & quotation
- 03
Development / special solutions
- 04
Manufacture to drawing or sample
- 05
Procurement of standard and purchased parts
- 06
Assembly of mechanical assemblies
- 07
Function testing & documentation
- 08
Marking, packaging & shipping
Manufacturing and processes
Machining to drawing or sample
Manufacture of precision parts for welding equipment components, from individual parts to series.
Development & new developments
Development of special assemblies and components in close coordination with the customer's design department.
Assembly of assemblies
Ready-to-install mechanical assemblies including procurement of standard and purchased parts.
Function testing
Testing to defined criteria from sampling to 100 % inspection with dimensional reports and test reports.
Rectifier construction
Manufacture of rectifiers for welding technology via HW Gleichrichterbau GmbH in Großräschen.
Locations

Selb-Spielberg
DEProduction and administration
- Lot size
- Individual parts to series
Großräschen
DEProduction – HW Gleichrichterbau GmbH
Parts and solutions




Inside the production


Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Machining to drawing or sample, from individual parts to seriesZerspanung | – | – | – | Individual parts – Series production | – |
| Assembly of mechanical assemblies to customer specifications (ready-to-install, incl. procurementMontage | – | – | – | – | – |
| Function testing to defined test criteria, dimensional reports, test reports, sampling up to 100Prüfung | – | – | – | – | – |
| Development of special solutions, new developments and special assemblies/components forEngineering | – | – | – | – | – |
| Rectifier construction (HW Gleichrichterbau GmbH, Großräschen)Montage | – | – | – | – | – |
Additional services
Quality and testing
Function testing to defined test criteria – from sampling to 100 % inspection. Documentation with dimensional reports and test reports as well as marking to customer standards.
| Evidence | Selb-Spielberg |
|---|---|
| Function testing to test criteria | |
| Dimensional reports and test reports | |
| 100 % inspection possible |
Company history
- 1978
Foundation of HELMUT WOLLNITZKE – start of specialisation in components for welding equipment.
- 1994
New construction of the production facility in Selb-Spielberg and expansion of manufacturing capacity.
- 1994
Foundation of HW Gleichrichterbau GmbH in Großräschen – expansion of the portfolio in the field of rectifier construction.
- Heute
Continuous new developments and problem solutions for the welding technology sector, now in the second generation.