CLOOS manufactures welding robots, welding power sources and complete automation systems for manual and automated welding.
Carl Cloos Schweißtechnik GmbH
Haiger (headquarters, R&D and production) · Haiger (central warehouse)New on Amplifa
About CLOOS
Carl Cloos Schweißtechnik GmbH, headquartered in Haiger (Hesse), is an internationally operating manufacturer of complete robot cells and automation systems as well as welding equipment for manual operation. The portfolio ranges from handheld welding units through semi-automated solutions such as cobots and compact Ready-to-Weld systems to fully automated production lines. The core competence is arc welding with processes such as MIG/MAG, TIG, laser-hybrid and the TANDEM/TANDEM+ process. With an in-house production depth of around 90% for main components, the group also manufactures its own industrial robots (ROMAT, QIROX), welding power sources (QINEO), positioners, sensors and software. Customer groups include small and medium-sized enterprises as well as international automotive, commercial vehicle and agricultural machinery manufacturers. With more than 1,000 employees, 16 subsidiaries, 10 production sites and over 60 sales and service locations worldwide, CLOOS serves customers in North and South America, Asia, Australia and Europe.
- Site
- Haiger
- Processes
- Manual welding (hand welding with handheld welding units), Automated welding (robot cells, cobots, semi-/fully automated lines), MIG/MAG welding, TIG welding, Laser-hybrid welding, TANDEM+/TANDEM welding process, CO2-arc shielding gas welding (historical introduction), Pulsed arc welding
- Materials
- MIG/MAG welding, TIG welding, Laser-hybrid welding, TANDEM+/TANDEM welding process, Pulsed arc welding, Grinding and cutting in robot systems, Offline programming and simulation, Digital platforms C-Gate and QNECT
- Certificates
- ISO 9001:2015, ISO 14001:2015, Energy audit DIN EN 16247-1
- Founded
- 1919
- Employees
- 1000+
- Industries
- Manufacturing industry, Automotive, Commercial vehicles, Agricultural machinery, Small and medium-sized enterprises, Metal construction
- 01
Consulting, welding trials and cost-benefit analysis in the Competence Center
- 02
Engineering and design of the system
- 03
In-house manufacturing of robots, power sources and components
- 04
Assembly and commissioning
- 05
Offline programming, simulation, networking (MES/ERP)
- 06
Service, spare parts supply, maintenance, retrofit
Processes & Technologies
MIG/MAG welding
Common arc welding process for manual and automated applications, a core competence of CLOOS.
TIG welding
Precise arc welding process for demanding welding tasks in robotics and manual operation.
Laser-hybrid welding
Combination of laser and arc welding for high penetration performance and quality.
TANDEM+/TANDEM welding process
Two- and 3-wire MIG/MAG technology with high deposition rates; established since 1996.
Pulsed arc welding
Process co-developed by CLOOS for stable arc control.
Grinding and cutting in robot systems
Integration of grinding and cutting processes into automated process chains.
Offline programming and simulation
RoboPlan and QIROX RoboScan for reduced programming time and higher utilization.
Digital platforms C-Gate and QNECT
IIoT platform for process monitoring, transparency and networking of welding production.
Locations
Haiger
DEHeadquarters, R&D and production; the group's most powerful research and production site
- ROMAT welding robots (in-house production)
- QIROX robot systems
- QINEO welding power sources
- WeldExperT Compact Cells
- Cobots (ArcBoT)
- 3D robot systems / linked production lines
- Positioners, sensors, software
Haiger (central warehouse)
DECentral warehouse and spare parts supply
Solutions & Systems
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manual welding (hand welding with handheld welding units)Joining | – | – | – | – | – |
| Automated welding (robot cells, cobots, semi-/fully automated lines)Joining | – | – | – | – | – |
| MIG/MAG weldingJoining | – | – | – | – | – |
| TIG weldingJoining | – | – | – | – | – |
| Laser-hybrid weldingJoining | – | – | – | – | – |
| TANDEM+/TANDEM welding processJoining | – | – | – | – | – |
| CO2-arc shielding gas welding (historical introduction)Joining | – | – | – | – | – |
| Pulsed arc weldingJoining | – | – | – | – | – |
| Oxy-fuel welding (historical, oxy-fuel welding torches)Joining | – | – | – | – | – |
| Grinding (integrated into robot systems)Surface | – | – | – | – | – |
| Cutting (integrated into robot systems)Machining | – | – | – | – | – |
| Inspection processes (inspection functions in automated process chains)Testing | – | – | – | – | – |
| Seam tracking and adaptive process controlTesting | – | – | – | – | – |
| Handling, positioning and feeding systemsAssembly | – | – | 1 kN (workpiece weight) – 1,200 kN (workpiece weight) | – | – |
| Custom concept systems (single station to fully automated line)Engineering | – | – | 1 kN – 1,200 kN | – | – |
| Ready-to-Weld systems (preconfigured compact robot cells, WeldExperT Compact Cells, CompactJoining | – | – | – | – | – |
| Offline programming, simulation, networking (MES/ERP), digitalization (C-Gate, QNECT)Engineering | – | – | – | – | – |
| Consulting, welding trials, cost-benefit analysis, training (CLOOS Academy, QINEO Mobil)Engineering | – | – | – | – | – |
| Retrofit/upgrade, overhaul and modernization of existing welding systemsAssembly | – | – | – | – | – |
| In-house manufacturing of industrial robots, welding power sources and system components (90%Assembly | – | – | – | – | – |
| Service, spare parts supply, remote support, maintenanceAssembly | – | – | – | – | – |
10 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Industrial robots (own design/production, ROMAT series, QIROX welding robots) | CLOOS ROMAT, QIROX | – | – | – | Haiger (and other production sites) |
| Welding power sources | CLOOS QINEO | – | – | – | Haiger |
| Cobot (semi-automated welding solution) | CLOOS | – | – | – | – |
| Ready-to-Weld systems: WeldExperT Compact Cells, Compact Systems | CLOOS WeldExperT Compact Cells | – | – | – | – |
| 3D robot system / linked production line (custom concept systems) | CLOOS | – | – | – | – |
| Positioners, sensors, software (system modules) | CLOOS | – | – | – | – |
| Refrigeration system 300 kW with refrigerant R290 (propane) | – | 1 | – | – | Haiger |
| Compressors, speed-controlled with heat recovery (90% renewed) | – | – | – | – | Haiger |
| Photovoltaic systems (up to 25%, up to 50% own electricity with the new hall) | – | – | – | – | Haiger |
| New production hall | – | – | – | 2025 | Haiger |
Additional services
Reference customers
Quality
Quality is ensured by a quality management system certified to ISO 9001:2015 and an environmental management system to ISO 14001:2015; an energy audit according to DIN EN 16247-1 documents the systematic analysis of energy consumption. All certificates were issued by DQS GmbH and can be verified via QR codes.
| Evidence | Haiger |
|---|---|
| ISO 9001:2015 | |
| ISO 14001:2015 | |
| Energy audit DIN EN 16247-1 |
History
- 1919
Engineer Carl Cloos founds the company for the production of acetylene gas generators and oxy-fuel welding torches.
- 1924
The company relocates to Haiger.
- 1956–1958
Introduction of CO2-arc shielding gas welding technology and integration of welding power sources into production cells.
- 1961–1968
New controls and development of the first pulsed arc system.
- 1978–1986
Design and production of the company's own industrial robots and first proprietary robot controller.
- 1996
Introduction of the TANDEM welding process; world market leader in this field.
- 2000–2010
New hardware and software make CLOOS the leading supplier of welding robot systems.
- 2019
Strategic partnership with Estun Automation.
- 2022
Launch of C-Gate and QNECT.
- 2025
Completion of a new production hall at the Haiger headquarters.