Pipework, vessel and apparatus construction in structural steels and stainless steels in the Siegerland region.
Karl Adolf Welsch Apparatebau GmbH
Neunkirchen (Zeppenfeld) · GermanyNew on Amplifa
About Karl Adolf Welsch Apparatebau
Karl Adolf Welsch Apparatebau GmbH in Neunkirchen-Zeppenfeld near Siegen is a third-generation, owner-managed metalworking company. The company manufactures complete piping systems, flange connections, segmented bends, Y-pieces, cones and branch fittings for all pressure ratings and media, as well as vessels and tanks such as pressure vessels, agitator vessels and dispatch vessels. In apparatus construction, the company produces combustion chambers, wet deslaggers and static mixers, among other things, to individual customer requirements. The main materials processed are structural steels as well as heat-resistant and stainless steels. The service portfolio further includes 3D pipe laser cutting, welding (MIG, MAG, TIG, E-Hand), assembly and fixture construction, surface treatments such as sandblasting and painting, as well as wear protection for plant components and pipe parts. The company also offers many of these services as contract manufacturing; several partner customers have been working with Welsch for over 40 years.
- Site
- Neunkirchen
- Processes
- Pipework construction, Vessel construction (pressure vessels, agitator vessels, dispatch vessels, tanks), Apparatus construction (combustion chambers, wet deslaggers, static mixers), 3D pipe laser cutting, Sandblasting, Painting, Wear protection for plant components and pipe parts, Welding (MIG, MAG, TIG, E-Hand)
- Materials
- Structural steels, heat-resistant steels, stainless steels, Heat-resistant steels, Stainless steels
- Industries
- Plant engineering, Mechanical engineering, Process engineering
- 01
Design / technical consulting
- 02
Cutting and 3D pipe laser cutting
- 03
Welding and assembly
- 04
Surface treatment (sandblasting, painting, wear protection)
- 05
Quality control
- 06
Installation / handover
Materials and Processes
Structural steels
Base material for pipework, vessels and apparatus for all pressure ratings.
Heat-resistant steels
Used for temperature-stressed components such as combustion chambers.
Stainless steels
For corrosion- and media-stressed vessels, apparatus and piping systems.
Locations
Neunkirchen (Zeppenfeld)
DEHeadquarters / Production
- Materials
- Structural steels, heat-resistant steels, stainless steels
- 3D pipe laser cutting system
- Welding technology MIG/MAG/TIG/E-Hand
- Sandblasting system
- Paint shop
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Pipework constructionJoining | – | – | – | – | Structural steels, heat-resistant steels, stainless steels |
| Vessel construction (pressure vessels, agitator vessels, dispatch vessels, tanks)Joining | – | – | – | – | Structural steels, heat-resistant steels, stainless steels |
| Apparatus construction (combustion chambers, wet deslaggers, static mixers)Joining | – | – | – | – | Structural steels, heat-resistant steels, stainless steels |
| 3D pipe laser cuttingMachining | – | – | – | – | Structural steels, heat-resistant steels, stainless steels |
| SandblastingSurface | – | – | – | – | Steel |
| PaintingSurface | – | – | – | – | Steel |
| Wear protection for plant components and pipe partsSurface | – | – | – | – | Steel |
| Welding (MIG, MAG, TIG, E-Hand)Joining | – | – | – | – | Structural steels, heat-resistant steels, stainless steels |
| Assembly / fixture construction for vessels and pipe fittingsAssembly | – | – | – | – | Structural steels, heat-resistant steels, stainless steels |
| Contract manufacturingJoining | – | – | – | – | Structural steels, heat-resistant steels, stainless steels |
| Manufacture of flange connections, segmented bends, Y-pieces, cones and branch fittings for allJoining | – | – | – | – | Structural steels, heat-resistant steels, stainless steels |
Additional services
History
Origin as a smithy and development into a modern industrial company; the company is owner-managed in its third generation.