Assemblies and precision parts made from steel, stainless steel and aluminium – from laser cutting to final assembly, all from a single source.
Metallbau Lührmann GmbH
Laage (Rostock) · GermanyNew on Amplifa
About Metallbau Lührmann
Metallbau Lührmann GmbH is an owner-managed family business founded in 1986, headquartered in Laage near Rostock with more than 100 employees. The company manufactures components and complex assemblies from steel, stainless steel and aluminium as a system supplier for industries such as wind power, mechanical and plant engineering, agriculture, packaging and food processing systems, crane construction, solar technology, shipbuilding and the automotive industry. The value chain includes laser cutting, press braking, rolling, tube bending, CNC turning and milling, welding (MAG, MIG, TIG), deburring, final assembly, design in SolidWorks, as well as logistics including customs clearance. In the separated stainless steel processing area, durable constructions with high surface quality are produced. Key customers include Liebherr, Nordex, Krebs and Aulich. Production takes place on a modern machine fleet with Trumpf laser systems, press brakes and several CNC machining centres from Haas and Doosan.
- Site
- Laage
- Processes
- Laser cutting (sheet metal working), Bending (press braking), Rolling (3-roll bending machine), Tube bending (NC), CNC turning, CNC milling, Welding MAG (steel), Welding TIG (stainless steel)
- Materials
- Steel, Stainless steel, Aluminium, Brass, Copper, Plastics, Castings, Plastic
- Certificates
- DIN EN ISO 9001:2015, DIN EN ISO 14001:2015, DIN EN ISO 3834-2, EN 1090-2 EXC2, ISO 9001:2015, ISO 14001:2015, ISO 3834-2
- Founded
- 1986
- Employees
- more than 100
- Industries
- Wind power / Renewable energies, Mechanical and plant engineering, Agriculture, Packaging and food processing systems, Crane construction, Shopfitting
- 01
Product development / design (SolidWorks 2D/3D)
- 02
Raw material procurement
- 03
Laser cutting
- 04
Press braking
- 05
Rolling / tube bending
- 06
CNC turning and milling
- 07
Welding (MAG, MIG, TIG)
- 08
Deburring / surface treatment
- 09
Quality assurance
- 10
Final assembly
- 11
Logistics and shipping
Materials and Processes
Steel
Base material for laser cutting, welding (MAG) and steel construction according to EN 1090-2 EXC2.
Stainless steel
Processed in a separated hall, among other things for shopfitting, shipbuilding and the food sector, with TIG welding and surface grinding.
Aluminium
Manufactured by laser cutting, bending, TIG and MIG welding up to 25 mm sheet thickness.
Brass
Processed in sheet metal working by laser cutting and bending.
Copper
Processed in sheet metal working by laser cutting and bending.
Plastic
Processed in machining (turning/milling).
Castings
Processed in machining (turning/milling).
Locations and Facilities
Laage (Headquarters)
DEHeadquarters / Production
- Lot size
- Individual parts, small and medium series
- Materials
- Steel, stainless steel, aluminium, brass, copper, plastic, castings
- Trumpf TruLaser 5030 with automatic storage system
- Trumpf TruLaser 3030
- Trumpf TruBend 5320 (320 t, 4000 mm)
- Trumpf TruBend 5130 (1300 kN, 3230 mm)
- Deburring machine
- 3-roll bending machine (2050 mm working range)
- Tube bending machine S80 (NC)
- Doosan Puma 280 CNC turning centre
- Haas ST30 Y CNC turning centre
- Haas VF 7 CNC milling centre
- Haas VF 3 CNC milling centre
- Haas VF 2 CNC milling centre
- Conventional lathe
- 2D/3D measuring devices in the climate-controlled measuring room
- Laser devices for material and coating analysis
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Laser cutting (sheet metal working)Machining | – | up to 25 mm sheet thickness | – | Single part – Small and medium series | Steel, Stainless steel, Aluminium, Brass, Copper |
| Bending (press braking)Forming | – | 4000 mm × Sheets up to 25 mm thickness | – | – | Steel, Stainless steel, Aluminium, Brass, Copper |
| Rolling (3-roll bending machine)Forming | – | 2050 mm working range | – | – | Steel, Stainless steel, Aluminium |
| Tube bending (NC)Forming | – | – | – | – | Steel, Stainless steel, Aluminium |
| CNC turningMachining | – | – | – | Single part – Small and medium series | Steel, Stainless steel, Aluminium, Castings, Plastic |
| CNC millingMachining | – | – | – | Single part – Small and medium series | Steel, Stainless steel, Aluminium, Castings, Plastic |
| Welding MAG (steel)Joining | – | – | – | – | Steel |
| Welding TIG (stainless steel)Joining | – | – | – | – | Stainless steel |
| Welding TIG/MIG (aluminium)Joining | – | – | – | – | Aluminium |
| Stainless steel processingSurface | – | – | – | – | Stainless steel |
| Grinding/surface treatmentSurface | – | – | – | – | Stainless steel |
| DeburringSurface | – | – | – | – | Steel, Stainless steel, Aluminium |
| Sawing, cutting, straightening, drilling, thread cuttingMachining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Final assembly (assembly of modules, marking)Assembly | – | – | – | – | Steel, Stainless steel, Aluminium |
| Product development / design (SolidWorks 2D/3D)Engineering | – | – | – | – | – |
| Quality assurance (2D/3D metrology, tensile testing, VT/PT inspections, spectroscopy)Testing | – | – | – | – | Steel, Coatings |
| Logistics (shipping, customs clearance)Assembly | – | – | – | – | – |
| Cone filters for wind turbinesAssembly | – | – | – | – | – |
| Coating (outsourced/managed)Surface | – | – | – | – | Steel |
14 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC laser cutting system with automatic storage system | Trumpf TruLaser 5030 / TruLaser 3030 | – | 1500 x 3000 x 115 mm | 2023 (Hall | Laage |
| CNC press brake (die bending press) | Trumpf TruBend 5320 | – | 320 tonnes pressing force, 4000 mm bendable length | 2023 | Laage |
| CNC press brake | Trumpf TruBend 5130 | – | 1300 kN, bending length 3230 mm | – | Laage |
| Deburring machine | – | 1 | – | 2023 | Laage |
| 3-roll bending machine | – | – | Working range 2050 mm, sheet thickness max. 4.5 mm, bending diameter 210 mm | – | Laage |
| Tube bending machine (NC) | S80 | – | Bending radius 40–200 mm, up to Ø 2 inches | – | Laage |
| CNC turning machining centre with driven tools | Doosan Puma 280 | – | Ø up to 400 mm, length 600 mm | – | Laage |
| CNC turning machining centre with driven tools | Haas ST30 Y | – | Ø up to 457 mm, length 584 mm | – | Laage |
| CNC milling machine / machining centre | Haas VF 7 | – | X 2134 mm, Y 800 mm, Z 1145 mm | – | Laage |
| CNC milling machine / machining centre | Haas VF 3 | – | X 1016 mm, Y 500 mm, Z 630 mm | – | Laage |
| CNC milling machine / machining centre | Haas VF 2 | – | X 762 mm, Y 406 mm, Z 508 mm | – | Laage |
| Conventional lathe | – | 1 | – | – | Laage |
| 2D/3D measuring devices (climate-controlled measuring room) | – | – | – | – | Laage |
| Laser devices for material and coating analysis | – | – | – | – | Laage |
Additional services
Reference customers
Quality and Certification
Quality assurance is carried out with 2D and 3D measuring devices in the climate-controlled measuring room, laser devices for material and coating analysis, tensile tests for each material batch, as well as VT and PT inspections of welded components. Material certificates according to 3.1 and 2.2 are provided.
| Evidence | Laage |
|---|---|
| ISO 9001:2015 | |
| ISO 14001:2015 | |
| ISO 3834-2 | |
| EN 1090-2 EXC2 |
Company History
- 1986
Founded in Laage by Manfred Lührmann
- 1990–1999
Construction and assembly of windows, doors, gates, balconies and railings
- 1999
First products for wind turbines
- 2003
Start of production in the Nord I industrial estate
- 2008
Opening of Hall 2 (CNC laser, bending, milling, turning) and introduction of the EN ISO 9001:2008 quality management system
- 2010
Opening of Hall 3, stainless steel processing
- 2013
Introduction of digital production planning
- 2014
Expansion of office and social rooms
- 2015
Expansion of the machine fleet in machining
- 2018
Introduction of ISO 14001:2015 environmental management
- 2020
Expansion of production area by 1300 m²
- 2023
New production hall (1400 m²) completed: Trumpf TruLaser 5030 with automatic storage system, Trumpf TruBend 5320, deburring machine; machining in Hall 6