Steel and mechanical engineering company in Homburg: sheet metal working, machining, welding technology and surface technology from a single source.
Hans Kerth Stahl- und Maschinenbau GmbH
Homburg (Saar)New on Amplifa
About us
Hans Kerth Stahl- und Maschinenbau GmbH is a family business founded in 1945 in Homburg (Saar). On a production area of around 2,500 m², the company manufactures everything from simple sheet metal blanks to complex components and assemblies, from one-off pieces to small series. The range of services includes sheet metal working with laser cutting, oxy-fuel cutting and bending, mechanical machining by sawing, drilling, turning and milling as well as welding technology with the processes manual metal arc welding (111), MIG/MAG (135), TIG (141) and stud welding (783). Sandblasting, glass bead blasting, priming and painting are also available in-house; hot-dip galvanizing, burnishing, powder coating and galvanic treatments are carried out by external companies. Materials processed include DC01+ZE, S235, S355, the stainless steels 1.4301 and 1.4571 as well as aluminium, mostly from stock, plus special materials such as carbon steels, spring steels, fine-grain, wear-resistant and heat-resistant steels as well as plastics and rubber/sealing materials. The company serves industries such as steel construction and mechanical engineering, and supplements its manufacturing with consulting, component optimization and transport with its own truck.
- Site
- Homburg
- Processes
- Laser cutting (TruLaser 3030), Oxy-fuel cutting, Bending (CNC swivel bending machine), Band sawing, Swing-frame circular saw, Drilling (radial and column drilling machines), CNC turning, Conventional turning with digital readout
- Materials
- DC01+ZE, S235, S355, 1.4301, 1.4571, Aluminium, Carbon steels, Spring steels
- Certificates
- Manufacturer qualification welding of steel structures DIN 1090-2 EXC2, Manufacturer qualification DIN 1090-2 EXC2, Welder certification DIN EN 287, Welding engineer (EWE), Testing according to WHG possible, ISO 9001
- Founded
- 1945
- Industries
- Steel construction, Mechanical engineering
- 01
Consulting / component optimization
- 02
Cutting (laser cutting, oxy-fuel)
- 03
Bending
- 04
Mechanical machining (sawing, drilling, turning, milling)
- 05
Welding
- 06
Surface treatment
- 07
Transport & logistics
Materials & Processes
DC01+ZE
Galvanized sheet steel, mostly from stock for sheet blanks and components.
S235
Structural steel for steel construction and welded structures from stock.
S355
High-strength structural steel for load-bearing and highly stressed components.
1.4301
Stainless steel, among other things laser-cut up to 12 mm material thickness.
1.4571
Stainless steel for components exposed to corrosion and chemicals.
Aluminium
Laser-cut up to 8 mm material thickness.
Carbon steels, spring steels, fine-grain, wear-resistant and heat-resistant
Special materials for specific applications; further special steels on request.
Plastics and rubber/sealing materials
Processing possible as a supplement to metallic materials.
Locations
Homburg
DEHeadquarters, production and administration
- Lot size
- From single parts to small series
- Materials
- DC01+ZE, S235, S355, 1.4301, 1.4571, aluminium, special steels
- TRUMPF TruLaser 3030 laser cutting machine (1500×3000 mm, year of manufacture 2016)
- TRUMPF TruBend 5230 CNC press brake (2300 kN, 3000 mm, year of manufacture 2016)
- Oxy-fuel cutting system up to 100 mm material thickness
- Band saw up to Ø 320 mm, swing-frame circular saw up to Ø 140 mm
- 1 CNC lathe (Ø 500 mm), 3 conventional lathes (Ø 600 mm)
- 2 CNC milling machines (1570×710×850 mm), 2 conventional milling machines
- Systems for manual metal arc welding (111), MIG/MAG (135), TIG (141) and stud welding (783)
- Sandblasting system and glass bead blasting system (7.0×3.5×3.0 m)
- Priming/painting booth (6.0×6.0×3.0 m)
- Crane systems up to 3,000 kg, electric forklift, own 3.5 t truck
Components & Solutions
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Laser cutting (TruLaser 3030)Machining | – | 3000 mm × 1500 mm | – | Single part – Small series | Steel up to 20 mm, Stainless steel up to 12 mm, Aluminium up to 8 mm |
| Oxy-fuel cuttingMachining | – | 2500 mm × 1250 mm | – | – | Material thickness up to 100 mm |
| Bending (CNC swivel bending machine)Forming | – | 3000 mm | – | – | – |
| Band sawingMachining | – | – | – | – | up to diameter 320 mm |
| Swing-frame circular sawMachining | – | – | – | – | up to diameter 140 mm |
| Drilling (radial and column drilling machines)Machining | – | – | – | – | – |
| CNC turningMachining | – | 1300 mm | – | – | up to diameter 500 mm |
| Conventional turning with digital readoutMachining | – | 2300 mm | – | – | up to diameter 600 mm |
| CNC millingMachining | – | 1570 mm × 710 mm × 850 mm | – | – | – |
| Conventional milling with digital readoutMachining | – | 1000 mm × 1000 mm × 1000 mm | – | – | – |
| Manual metal arc welding (111)Joining | – | – | – | – | – |
| MIG-MAG welding (135)Joining | – | – | – | – | – |
| TIG welding (141)Joining | – | – | – | – | – |
| Stud welding / drawn arc stud welding (783)Joining | – | – | 12 mm | – | – |
| SandblastingSurface | – | 7.0 m × 3.5 m × 3.0 m | – | – | – |
| Glass bead blastingSurface | – | 7.0 m × 3.5 m × 3.0 m | – | – | – |
| Priming/paintingSurface | – | 6.0 m × 6.0 m × 3.0 m | – | – | – |
| Hot-dip galvanizing, burnishing, powder coating, galvanic surface treatment (external companies)Surface | – | – | – | – | – |
| Consulting / component optimizationEngineering | – | – | – | – | – |
23 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Laser cutting machine | TRUMPF TruLaser 3030 | 1 | Working width up to 1500 mm, working length up to 3000 mm | 2016 | Homburg |
| Press brake | TRUMPF TruBend 5230 | 1 | Bending length 3000 mm, 2300 kN, swivel bending machine 3x2500 mm, CNC | 2016 | Homburg |
| Oxy-fuel cutting system | – | 1 | up to 1250 mm width, 2500 mm length, material thickness up to 100 mm | – | Homburg |
| Band saw | – | – | up to diameter 320 mm | – | Homburg |
| Swing-frame circular saws | – | – | up to diameter 140 mm | – | Homburg |
| Radial and column drilling machines | – | various | – | – | Homburg |
| CNC lathe | – | 1 | up to diameter 500 mm, length 1300 mm | – | Homburg |
| Conventional lathe with digital readout | – | 3 | up to diameter 600 mm, length 2300 mm | – | Homburg |
| CNC milling machine | – | 2 | 1570 x 710 x 850 mm | – | Homburg |
| Conventional milling machine with digital readout | – | 2 | 1000 x 1000 x 1000 mm | – | Homburg |
| Welding transformer (manual metal arc) | – | – | – | – | Homburg |
| Gas-shielded welding system (MIG-MAG) | – | – | up to 400 A | – | Homburg |
| TIG welding system | – | – | up to 300 A, direct and alternating current | – | Homburg |
| Stud welding system | – | – | 3 - 12 mm | – | Homburg |
| Rotary tables / welding fixtures for pipes and containers | – | – | – | – | Homburg |
| Sandblasting system | – | 1 | Length 7.0 m, width 3.5 m, height 3.0 m | – | Homburg |
| Glass bead blasting system | – | 1 | Length 7.0 m, width 3.5 m, height 3.0 m | – | Homburg |
| Priming/painting booth | – | 1 | Length 6.0 m, width 6.0 m, height 3.0 m | – | Homburg |
| Crane system (mechanical machining) | – | 1 | 2000 kg | – | Homburg |
| Crane system (welding) | – | 1 | 3000 kg, hook height 4000 mm | – | Homburg |
| Crane system (cutting) | – | 1 | 1000 kg | – | Homburg |
| Electric forklift | – | 1 | 3000 kg | – | Homburg |
| Truck (own) | – | 1 | 3.5 tonnes | – | Homburg |
Additional services
Quality & Evidence
The company holds the manufacturer qualification for welding of steel structures according to DIN 1090-2 EXC2; all welders are certified according to DIN EN 287. The technical management holds the welding engineer qualification (EWE); testing according to WHG (Water Resources Act) is possible.
| Evidence | Homburg |
|---|---|
| Manufacturer qualification DIN 1090-2 EXC2 | |
| Welder certification DIN EN 287 | |
| Welding engineer (EWE) | |
| Testing according to WHG possible | |
| ISO 9001 |
History
- 1945
Company founded as a metalworking shop by Ernst Kerth
- 1950
Hans Kerth joined the company
- 1958
Hans Kerth took over the company together with his father
- 1961
Hans Kerth took over sole management of the company
- 1979
Diana Fitsch and her husband Stefan Fitsch joined the company
- 2008
Diana and Stefan Fitsch have been managing the company since then
- 2017
Commissioning of a 75 kWp photovoltaic system for self-consumption and feed-in