
Sheet metal working from design through laser cutting, punching, bending and welding to assembly – sheet metal up to 4000×2000 mm.

Kaupp Blechbearbeitung GmbH & Co. KG
Industriestraße 39, 72275 AlpirsbachNew on Amplifa
About us – Tradition meets Innovation
Kaupp Blechbearbeitung GmbH & Co. KG is a fourth-generation family company based in Alpirsbach in the Black Forest. Founded in 1919 as a building tinsmithery, the company has specialised in sheet metal working with CNC-controlled machines since the 1990s. Its range of services includes CAD design (2D/3D, DXF/DWG), laser cutting in 4000×2000 mm format, punch-laser processing, cutting, bending (swivel bending, press brake bending up to 220 t), roll bending, manual and robotic welding as well as dry grinding and edge rounding on a Loewer DiscMaster 4TD. It manufactures single parts, small series and custom-made products from steel, stainless steel, aluminium, copper, brass and titanium – including machine enclosures, machine base frames, leak-tested containers, tube constructions and railing sheets. Surface treatment such as powder coating, galvanising, blackening and anodising is carried out via a partner network. Key customers come from mechanical and special-purpose machinery engineering.
- Site
- Alpirsbach
- Processes
- Laser cutting, Punching, Punch-laser processing, Laser engraving, Cutting, Bending (swivel bending), Bending (press brake bending), Bending (fully electric Quickbend, series and small parts)
- Materials
- Corten steel (weather-resistant), Steel, Stainless steel, Aluminium, Copper, Brass, Titanium
- Founded
- 1919
- Industries
- Mechanical engineering, Special-purpose machinery engineering, Container construction
- 01
Design (2D/3D CAD/CAM)
- 02
Laser cutting / punch-laser / cutting
- 03
Bending / roll bending
- 04
Welding (manual/robot)
- 05
Surface processing (dry grinding/edge rounding)
- 06
External coating
- 07
Assembly & Delivery
Materials & Processes
Steel
Main material for laser cutting, bending, welding and container construction; laser cut up to 30 mm thickness.
Stainless steel
For leak-tested containers, machine enclosures and welded parts; laser cut up to 20 mm.
Aluminium
Lightweight components and enclosures; laser cut up to 20 mm, anodised externally.
Copper
Laser cutting and punch-laser processing of copper sheets.
Brass
Laser cutting and punch-laser processing of brass sheets.
Titanium
Laser cutting and flame-cut parts made of titanium according to customer drawings.
Corten steel (weather-resistant)
Weather-resistant structural steel for raised beds and long-lasting outdoor products requiring no maintenance.
Locations
Alpirsbach
DEHeadquarters / Production
- Lot size
- Single parts, small series, custom-made products
- Materials
- Steel, stainless steel, aluminium, copper, brass, titanium, Corten steel
- Laser cutting system (4000×2000 mm)
- Punch-laser system (2000×1500 mm)
- RAS GIGAbend swivel bending machine
- Press brake 220 t, bending length 4000 mm
- Swivel bending machine 3200 mm
- Fully electric press brake Quickbend (1000 mm, 30 t)
- Roll bending machine (1500 mm)
- Robotic welding system (single/double chamber)
- Loewer DiscMaster 4TD (dry grinding/edge rounding)
Components





Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Laser cuttingMachining | – | 4000 mm × 2000 mm | – | – | Steel, Stainless steel, Aluminium, Copper, Brass, Titanium |
| PunchingMachining | – | – | – | – | Steel, Stainless steel, Aluminium, Copper, Brass |
| Punch-laser processingMachining | – | 2000 mm × 1500 mm | – | – | Steel, Stainless steel, Aluminium, Brass, Copper |
| Laser engravingSurface | – | – | – | – | Steel, Stainless steel, Aluminium |
| CuttingMachining | – | 4000 mm | – | – | Steel, Stainless steel, Aluminium |
| Bending (swivel bending)Forming | – | 3200 mm | – | – | Steel, Stainless steel, Aluminium |
| Bending (press brake bending)Forming | – | 4000 mm | – | – | Steel, Stainless steel, Aluminium |
| Bending (fully electric Quickbend, series and small parts)Forming | – | 1000 mm | – | – | Steel, Stainless steel, Aluminium |
| Roll bendingForming | – | 1500 mm | – | – | Steel, Stainless steel, Aluminium |
| Welding (manual welding: TIG, MAG, MIG, spot welding)Joining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Robotic welding (single or double chamber system)Joining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Surface processing (dry grinding/edge rounding of inner and outer contours)Surface | – | 1.5 m | – | – | Steel, Stainless steel, Aluminium |
| Design (2D CAD/CAM, 3D CAD, processing of customer files DXF, DWG etc.)Engineering | – | – | – | – | – |
| Flame-cut partsMachining | – | – | – | – | Steel, Stainless steel, Aluminium, Copper, Brass, Titanium |
| Tube constructionsJoining | – | – | – | – | Steel, Stainless steel, Aluminium, Copper, Brass, Titanium |
| Container construction (also leak-tested)Joining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Manufacture of machine base frames for mechanical and special-purpose machinery engineeringAssembly | – | – | – | – | Steel, Stainless steel, Aluminium |
| Powder coating (external via partner network)Surface | – | – | – | – | Steel, Stainless steel, Aluminium |
| Galvanic galvanising (external via partner network)Surface | – | – | – | – | Steel |
| Blackening (external via partner network)Surface | – | – | – | – | Steel |
| Anodising (external via partner network)Surface | – | – | – | – | Aluminium |
9 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Laser cutting system | – | – | 4000 x 2000 mm | – | Alpirsbach |
| Punch-laser system | – | – | 2000 x 1500 mm | – | Alpirsbach |
| Swivel bending machine | RAS GIGAbend-Schwenkbiege | – | – | 2021 | Alpirsbach |
| Press brake | – | – | Bending length 4000 mm, press force 220 t | – | Alpirsbach |
| Swivel bending machine | – | – | Bending length 3200 mm | – | Alpirsbach |
| Fully electric press brake (Quickbend) | Quickbend | – | Bending length 1000 mm, press force 30 t | – | Alpirsbach |
| Roll bending machine | – | – | Bending length 1500 mm | – | Alpirsbach |
| Robotic welding system (single or double chamber system) | – | – | – | – | Alpirsbach |
| Deburring/edge rounding machine (dry grinding) | Loewer DiscMaster 4TD | – | Small parts up to width 1.5 m | – | Alpirsbach |
Additional services
History
- 1919
Founded by Rudolf Kaupp as a building tinsmithery and plumbing installation company.
- 1952
Relocation of production to a new production hall.
- 1992
Ulrich Kaupp takes over the management in the third generation; focus on sheet metal working, restructuring until 2002.
- 2010
Under Herbert Kaupp, the offering was expanded to include mechanical engineering parts; supplier to the mechanical engineering industry.
- 2016
Mareen Kaupp (daughter of Ulrich Kaupp) joins the company as a master craftswoman and business graduate.
- 2018
Conversion into a GmbH & Co. KG; joint management by Ulrich and Mareen Kaupp.
- 2019
100th company anniversary.
- 2021
Ulrich Kaupp passes away; Mareen Kaupp continues to run the company; expansion with the RAS GIGAbend swivel bending machine.