Steel fabrication with digital tube laser fabrication, waterjet cutting, 3D surveying, plus delivery and on-site assembly
Gruber Stahlbau GmbH
Unterdietfurt (DE)New on Amplifa
About Gruber Stahlbau
Gruber Stahlbau GmbH is a medium-sized steel and metal fabrication company based in Unterdietfurt, Bavaria. The company manufactures steel structures and steel construction components for industrial and plant engineering, hall and commercial construction, municipalities and public developers, as well as architectural and structural engineering. Its range of services includes ventilation platforms, machinery and industrial platforms, trusses and pipe bridges, stair towers, escape and exterior staircases, balcony systems, impact protection systems, and aluminium ramps for accessibility. The core of production is digital steel fabrication 4.0 with a 3D tube laser system that processes bar stock up to 15 m in length and profiles up to 406.4 mm diagonal with a 5-axis cutting head, handling up to 1,000 kg of steel per hour in a single operation — including drilling, thread tapping M4–M12 and weld seam preparation. In addition, a waterjet system (2 x 4 m) is available for thermal-free cutting of steel, aluminium, stone, glass, plastics, foam and wood. The process chain extends from 3D laser surveying with the FARO Focus (capture distance up to 70 m) through CAD design and CNC production to delivery and on-site assembly. The company fabricates and welds to DIN EN 1090-2 EXC2 and is certified to ISO 9001:2015.
- Site
- Unterdietfurt
- Processes
- Waterjet cutting, 3D tube laser cutting (steel fabrication 4.0), Drilling, thread tapping (M4-M12), sawing, notching, weld seam preparation in a single operation, Welding (135 MAG with solid wire electrode, 141 TIG), Steel construction fabrication to DIN EN 1090 EXC2, 3D laser surveying (as-built survey, point cloud, CAD processing), Grit blasting (surface treatment of aluminium ramps), CAD design / engineering (2D drawings, 3D models, STEP)
- Materials
- Steel, Stainless steel, Aluminium, Titanium, Steel up to S355 (material group ≤1.2 according to CEN ISO/TR 15608), Stone, Glass, Plastics
- Certificates
- ISO 9001:2015, EN ISO 3834-3 (welding quality requirements), EN 1090-1 / EN 1090-2 EXC2 (factory production control), EN ISO 3834-3 (pre-certificate, expired), EN ISO 3834-3, EN 1090-2 EXC2 (CPR)
- Founded
- 1898
- Industries
- Industrial and plant engineering, Hall construction, Commercial construction, Municipalities and public developers, Architectural and structural engineering, Medical supply stores / accessibility
- 01
3D laser surveying (FARO Focus)
- 02
CAD design / engineering
- 03
Waterjet and tube laser cutting
- 04
Fabrication & welding to DIN EN 1090 EXC2
- 05
Delivery & on-site assembly
Materials & Processes
Steel
Primary material of steel fabrication, weldable in the tube laser up to S355 (material group ≤ 1.2).
Stainless steel
Processable in the tube laser up to 20 mm material thickness.
Aluminium
Material of the aluminium ramps; grit-blasted for slip resistance; also cuttable in the tube laser and waterjet.
Titanium
Processable in the tube laser up to 20 mm material thickness.
Waterjet cutting
Cutting without thermal influence of steel, aluminium, stone, glass, plastics, foam and wood on 2 x 4 m.
3D tube laser cutting
Digital steel fabrication 4.0 with 5-axis cutting head for profiles up to 406.4 mm diagonal and lengths up to 15 m.
Welding (135 MAG, 141 TIG)
Qualified welding processes for steel up to S355 according to EN ISO 3834-3 and DIN EN 1090-2 EXC2.
3D laser surveying
As-built survey and point cloud capture with FARO Focus up to 70 m distance as the basis for CAD design.
Locations
Unterdietfurt
DEMain site: administration, production hall, manufacturing
- Materials
- Steel, stainless steel, aluminium, titanium
- 3D tube laser system (5-axis, fully automatic loading/unloading, thread tapping unit M4–M12)
- Waterjet system 2 x 4 m
- FARO Focus 3D laser scanner (up to 70 m)
- CNC-controlled systems (steel construction)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Waterjet cuttingMachining | – | 4 m × 2 m | – | – | Steel, Aluminium, Metal, Stone, Glass, Plastics, Foam, Wood |
| 3D tube laser cutting (steel fabrication 4.0)Machining | – | 15 m | – | – | Steel, Stainless steel, Aluminium, Titanium |
| Drilling, thread tapping (M4-M12), sawing, notching, weld seam preparation in a single operationMachining | – | 15 m | – | – | Steel |
| Welding (135 MAG with solid wire electrode, 141 TIG)Joining | – | – | – | – | Steel up to S355 (material group ≤1.2, 8.1 according to CEN |
| Steel construction fabrication to DIN EN 1090 EXC2Assembly | – | – | – | – | Steel |
| 3D laser surveying (as-built survey, point cloud, CAD processing)Inspection | – | 70 m (capture distance) | – | – | – |
| Grit blasting (surface treatment of aluminium ramps)Surface | – | – | – | – | Aluminium |
| CAD design / engineering (2D drawings, 3D models, STEP)Engineering | – | – | – | – | – |
| Fabrication and assembly of aluminium rampsAssembly | – | – | – | – | Aluminium |
4 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| 3D tube laser system (5-axis rotary and swivel cutting head, fully automatic loading and unloading) | – | – | Bar stock up to 15 m, profiles/tubes up to 406.4 mm diagonal, material thickness up to 20 mm, 1,000 | – | Unterdietfurt |
| Waterjet system | – | – | 2 x 4 m cutting area | – | Unterdietfurt |
| FARO Focus 3D laser scanner | FARO Focus | – | Distances up to 70 m | – | Unterdietfurt |
| CNC-controlled systems (steel construction) | – | – | – | – | Unterdietfurt |
Additional services
Quality
Qualified welding processes are carried out by certified welding personnel with many years of experience and monitored according to DIN EN 1090 EXC2. The tube laser production process includes intermediate measurement and final inspection; production is certified to ISO 9001:2015.
| Evidence | Unterdietfurt |
|---|---|
| ISO 9001:2015 | |
| EN ISO 3834-3 | |
| EN 1090-2 EXC2 (CPR) |
History
- 1898
Founded as a farrier and wheelwright shop
- 1954
Establishment of sales and repair of agricultural machinery
- 1987
First contracts from the automotive industry in the field of development & production of transport containers
- 1989
Entry into fabrication and assembly of steel structures for industry — today the core business
- 2011
Construction of the new production hall with administration building
- 2020
Major investments enable the transition to digitalized craft 4.0