
Laser and welding technology service provider for laser welding, cutting, hardening, engraving, laser cleaning and tool repair.

KLB Laserschweißtechnik GmbH & Co. KG
Lüdenscheid · AttendornNew on Amplifa
About KLB Laserschweißtechnik
KLB Laserschweißtechnik GmbH & Co. KG is a service company for laser and welding technology with locations in Lüdenscheid and Attendorn. At both locations, 22 specialists work on jobs as prototypes, single parts or series production – by hand or fully automated by robot. The service portfolio includes laser welding (also mobile and 3D by robot), laser hardening, laser powder deposition welding (LPA), 3D laser engraving, laser marking, laser cutting, laser cleaning, TIG and MIG/MAG welding, seam and fill welding as well as repair welding of tool fractures. Steel, stainless steel, aluminium, copper, bronze and spring steel are processed; in laser cutting, films from 0.01 mm and sheets up to 18 mm thick are cut. Customers come from tool and mould making, plastic injection moulding, metal and sheet metal processing, mechanical engineering, medical technology, shipbuilding and industrial coating. In addition, the company develops and sells its own laser cleaning systems and offers machine rental, machine sales, training and a 24h emergency service.
- Site
- Lüdenscheid
- Processes
- Laser welding, Mobile laser welding, 3D laser welding by robot, Laser hardening (mobile), 3D laser engraving (deep engraving, micro engraving, 3D engraving), Laser marking, Laser cutting, Laser cleaning (mobile)
- Materials
- Steel, Stainless steel, Spring steel, Bronze, Copper, Aluminium, Tool steel CR7V, Special alloy (welding filler for repair welding)
- Certificates
- DIN EN ISO 9001:2015, ISO 9001
- Employees
- 22
- Industries
- Tool and mould making, Plastic injection moulding, Metal and sheet metal processing, Mechanical engineering, Medical technology, Shipbuilding
- 01
Enquiry and consultation
- 02
Planning of order processing
- 03
Laser or welding processing (stationary, mobile or by robot)
- 04
Final quality inspection
- 05
Collection and delivery service or dispatch
Materials and processes
Steel
Base material processed in laser cutting and welding, also as tool steel CR7V in repair welding.
Stainless steel
Material for laser cutting and welding applications in metal and sheet metal processing.
Spring steel 1.4310
Laser-welded for tool backing plates in tool and mould making.
Aluminium
Lightweight construction material laser-cut and welded.
Copper
Material processed in laser cutting.
Bronze
Material processed in laser cutting.
Laser powder deposition welding
Powder-shaped filler material is blown into the laser melt pool and produces a metallurgically bonded coating.
Special filler alloy
In repair welding, the fracture cross-section is filled layer by layer with a special alloy.
Locations

Lüdenscheid
DEProduction site: laser welding, laser engraving, laser marking, laser cutting
- Lot size
- Single parts to series
- Materials
- Steel, stainless steel, bronze, copper, aluminium, spring steel (1.4310)
- Laser cutting system with exchange drawer (films from 0.01 mm, sheets up to 5 mm)
- Laser cutting system with 2KW fibre laser (sheets up to 18 mm)
- 3D engraving laser with conveyor belt feeding
- 600W fibre laser welding system

Attendorn
DEProduction site: laser welding, laser hardening, laser cleaning, LPA, TIG/MAG, repair welding; head office according to
- Lot size
- Single parts to series
- Materials
- Steel, stainless steel, aluminium
- Automated robot system with 3KW IPG laser source for 3D laser welding/cutting
- Automatic 4-station rotary indexing laser welding system with integrated laser marking system
- 900W stationary laser welding system
- Mobile laser robot AL-ROCK for laser hardening and LPA
- Mobile laser cleaning systems (50W to 6,000W)
- TIG/MIG/MAG welding equipment (Fronius)
- Chamber and hardening furnaces (50L/100L/300L)
Components and repair



Inside the production






Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Laser weldingJoining | – | – | – | – | Steel, Stainless steel, Aluminium |
| Mobile laser weldingJoining | – | – | – | – | – |
| 3D laser welding by robotJoining | – | – | – | – | – |
| Laser hardening (mobile)Heat treatment | – | – | – | – | – |
| 3D laser engraving (deep engraving, micro engraving, 3D engraving)Surface | – | – | – | – | – |
| Laser markingSurface | – | – | – | – | – |
| Laser cuttingMachining | – | – | – | – | Steel, Stainless steel, Bronze, Copper, Aluminium, Spring steel (1.4310) |
| Laser cleaning (mobile)Surface | – | – | – | – | Metal, Wood, Tiles, Natural stone, Concrete |
| Laser powder deposition welding (LPA)Joining | – | – | – | – | – |
| TIG welding (mobile)Joining | – | – | – | – | – |
| MAG welding (mobile)Joining | – | – | – | – | – |
| MAG welding by robotJoining | – | – | – | – | – |
| Seam and fill weldingJoining | – | – | – | – | – |
| Repair welding / tool fractureJoining | – | – | – | – | Special alloy, CR7V |
| Hardfacing / armouring (wear-resistant)Joining | – | – | – | – | – |
| Vibratory finishingSurface | – | – | – | – | – |
| Machine rental serviceEngineering | – | – | – | – | – |
| Machine trading and salesEngineering | – | – | – | – | – |
| Mechanical engineering (laser cleaners / laser hand welding devices)Engineering | – | – | – | – | – |
14 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Automated robot system for 3D laser welding/cutting | IPG (laser source) 3KW IPG laser source | 1 | – | 2019 | Attendorn |
| Laser cutting system | 2KW fibre laser | 1 | – | 2020 | Attendorn |
| Laser cutting system with exchange drawer | – | 1 | Films from 0.01 mm, sheets up to 5 mm | 2018 | – |
| Stationary laser welding system | 900W | 1 | – | 2019 | – |
| Stationary laser welding system | 600W fibre laser | 1 | – | 2018 | – |
| Laser welding system | – | 1 | – | 2017 | – |
| Automatic 4-station rotary indexing laser welding system with integrated laser marking system | – | 1 | – | 2023 | – |
| Engraving laser (3D) with conveyor belt feeding for series production | – | 1 | – | 2018 | – |
| Engraving laser 3D | – | 1 | – | 2017 | – |
| Mobile laser robot AL-ROCK (laser hardening / laser powder deposition welding, tracked chassis, | AL-ROCK | – | – | – | – |
| Mobile laser cleaning systems | KLB QUANTUM series, TWIN-PULSE series, INFINITY series, HIGH-POWER series (1,000W to | – | Beam width up to 550 mm (HIGH-POWER) | – | – |
| Laser hand welding devices | – | – | – | 2022 | – |
| Chamber and hardening furnaces | 50L / 100L / 300L | – | – | – | – |
| TIG/MIG/MAG welding equipment | Fronius | – | – | – | – |
Additional services
Quality
Every order is inspected in a dedicated final quality inspection; in laser hardening, the process is documented during the hardening operation to ensure process reliability and reproducibility. The company is certified to DIN EN ISO 9001:2015.
| Evidence | Lüdenscheid | Attendorn |
|---|---|---|
| ISO 9001 |
History
- 2013
Initial certification to DIN EN ISO 9001.
- 2017
Merger of Thorsten Raab Schweißtechnik GmbH & Co. KG and KLB Laserschweißtechnik GmbH to form KLB Laserschweißtechnik GmbH & Co. KG; investment in a 3D engraving laser and further laser welding systems.
- 2018
New laser cutting system with exchange drawer, engraving system with conveyor belt feeding and 600W fibre laser.
- 2019
Automated robot system with 3KW IPG laser source for 3D laser welding/cutting; acquisition of a new 900W laser welding system.
- 2020
Introduction of laser cleaning; investment in a 2KW fibre laser cutting system (sheets up to 18 mm).
- 2021
Modernisation of the Attendorn site.
- 2022
Purchase of more powerful laser cleaners, introduction of laser hand welding; start of machine sales.
- 2023
Acquisition of an automatic 4-station rotary indexing laser welding system with integrated laser marking system.