
Develops and manufactures extraction systems and filtration technology for dusts, chips, smoke and oil mist in industry.
Keller Lufttechnik GmbH + Co. KG
Kirchheim unter Teck · Arnsberg · Soltau · ZschopauNew on Amplifa
Extraction technology for clean air in industry
Keller Lufttechnik is a family-owned company founded in 1903 and headquartered in Kirchheim unter Teck. The company develops and manufactures custom extraction systems for the separation of dusts, chips, welding fume, paint mist, oil mist and vapors in industrial production. The portfolio includes dry separators, wet separators, emulsion and oil mist separators, electrostatic separators as well as extraction arms, extraction tables, extraction hoods and industrial vacuum cleaners, supplemented by filtration technology and fans. Manufacturing takes place in-house, among other things on a laser cutting center with a solid-state laser; filter elements such as the KLR filters for the VARIO dry separator are also developed and produced in-house. Target industries include metalworking, plastics manufacturing, woodworking, the chemical industry, stonemasonry businesses and foundries. Engineering uses flow simulation (CFD), 3D laser scanning and dust analyses; explosion protection in accordance with ATEX as well as heat recovery and clean air recirculation round out the offering. Customers include Sandvik Tooling Supply, fischer Maschinentechnik and the Walzengießerei Coswig roll foundry.
- Site
- Kirchheim unter Teck
- Processes
- Extraction systems (dry separators, wet separators, emulsion and oil mist separators,, Welding fume extraction / welding fume separators, Paint mist extraction, Industrial vacuum cleaners for dusts, chips, oil mist, Maintenance, inspection and annual functional testing of extraction systems (also third-party, Spare parts supply (filters, filter elements) including in-house development and production, System installation (mechanical and electrical) and commissioning of extraction systems, 3D laser scanning for surveying buildings/objects
- Materials
- Quartz dust, Aluminum, Magnesium, Steel (blasting dusts, chips), Plastics (CFRP, GRP, GMPU, rubber, polyester, PTFE), Wood, Steel, Plastics
- Certificates
- DIN EN ISO 14001:2015, DIN EN ISO 50001:2018, ISO 50001, Explosion protection according to ATEX, DGUV 109-002 functional test
- Founded
- 1903
- Industries
- Metalworking, Plastics manufacturing, Woodworking, Chemical industry, Stonemasonry businesses, Foundries
- 01
Engineering and consulting (project inquiry, CFD simulation, 3D laser scanning)
- 02
Dust analysis and explosion protection concept according to ATEX
- 03
Manufacturing (including laser cutting, filter production)
- 04
System installation (mechanical and electrical) and commissioning
- 05
After-sales service: inspection, maintenance, PREMOS monitoring, spare parts
Media and materials of extraction technology
Steel
Dust-like substances such as steel chips and blasting dusts are safely captured in dry and wet separators.
Aluminum
Explosive aluminum dusts require preventive and constructive explosion protection measures in accordance with ATEX.
Magnesium
Extraction of magnesium dusts with adapted explosion protection.
Plastics
Plastic dusts (including CFRP, GRP, rubber, polyester, PTFE) are separated in suitable separation technologies.
Wood
Wood chips from woodworking are captured via chip extraction systems and dust collectors.
Quartz dust
The VARIO dry separator with KLR filter elements fulfills TRGS 559/560 for health-hazardous quartz dust.
Locations

Kirchheim unter Teck
DEHeadquarters, manufacturing, engineering, service and administration
- Materials
- Steel, aluminum, plastics, wood, quartz dust
- Laser cutting center (solid-state laser)
- 3D laser scanner
- Photovoltaic systems (approx. 500,000 kWh/year)
Arnsberg
DEOffice NRW
Soltau
DESales representative (W. Suhr GmbH)
Zschopau
DESales representative (Dipl.-Ing. J. and U. Oertel)
Systems and components


Inside the production



Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Extraction systems (dry separators, wet separators, emulsion and oil mist separators,Engineering | – | – | – | – | Steel chips, Aluminum dusts, Plastic dusts, Wood chips, Quartz dust |
| Welding fume extraction / welding fume separatorsEngineering | – | – | – | – | Steel |
| Paint mist extractionEngineering | – | – | – | – | – |
| Industrial vacuum cleaners for dusts, chips, oil mistEngineering | – | – | – | – | Metal, Plastics, Wood |
| Maintenance, inspection and annual functional testing of extraction systems (also third-partyTesting | – | – | – | – | – |
| Spare parts supply (filters, filter elements) including in-house development and productionAssembly | – | – | – | – | – |
| System installation (mechanical and electrical) and commissioning of extraction systemsAssembly | – | – | – | – | – |
| 3D laser scanning for surveying buildings/objectsTesting | – | – | – | – | – |
| Dust analysis (explosion hazard, explosion-related characteristic parameters)Testing | – | – | – | – | Metallic dusts, Organic dusts, Paint and spray dusts |
| Flow simulation (CFD) for extraction systemsEngineering | – | – | – | – | – |
| Explosion protection according to ATEX for extraction systems (preventive and constructive)Engineering | – | – | – | – | Metallic dusts, Organic dusts, Paint and spray dusts |
| BAFA subsidy consulting for extraction systemsEngineering | – | – | – | – | – |
| Sales of used extraction systems (chip extraction systems, dust collectors)Engineering | – | – | – | – | Wood, Metal |
| Heat recovery (ProTERM) / clean air recirculationEngineering | – | – | – | – | – |
6 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Laser cutting center (solid-state laser) | – | – | – | – | Kirchheim unter Teck |
| VARIO dry separator with KLR filter elements | Keller Lufttechnik VARIO | – | – | – | – |
| ENA emulsion mist separator | Keller Lufttechnik ENA | – | – | – | – |
| ProTERM heat recovery module (plate heat exchangers) | Keller Lufttechnik ProTERM | – | – | – | – |
| 3D laser scanner | – | – | – | – | – |
| Extraction arms, extraction tables, extraction hoods, industrial vacuum cleaners, fans | Keller Lufttechnik | – | – | – | – |
Additional services
Reference customers
Quality and certification
In accordance with DGUV 109-002, the Industrial Safety Ordinance and the Hazardous Substances Ordinance, extraction systems are inspected and documented at least annually by qualified service technicians; the company has certified environmental and energy management systems in accordance with DIN EN ISO 14001 and ISO 50001.
| Evidence | Kirchheim unter Teck |
|---|---|
| DIN EN ISO 14001:2015 | |
| ISO 50001 | |
| Explosion protection according to ATEX | |
| DGUV 109-002 functional test |
History
- 1903
Foundation of the family-owned company in Kirchheim unter Teck
- 1980
Slogan “We work for a clean future”
- 2015
Certification of the environmental and energy management systems (DIN ISO 14001, DIN ISO 50001)
- 2022
First carbon footprint for the year 2021 prepared according to the GHG Protocol (Scope 1–3)