Plastic fans, exhaust air purification systems, apparatuses and process systems made of chemically resistant thermoplastics.
COLASIT Deutschland GmbH
Rösrath (DE) · Spiez (CH) · 's-Hertogenbosch (NL) · Skara (SE) · Singapore (SG)New on Amplifa
About Colasit
Colasit is a family-owned company of the Colasit Holding with headquarters of the COLASIT AG in Spiez, Switzerland, and a sales, production, assembly and service location of the COLASIT Deutschland GmbH in Rösrath, North Rhine-Westphalia. The company develops and produces chemically resistant plastic fans (centrifugal, duct, roof and special fans), exhaust air and exhaust gas scrubbers, plastic heat exchangers, filter housings, mist eliminators, ventilation systems, containers, pipework, apparatuses, process systems as well as aquaculture systems and fibre composite mouldings. Manufacturing features a high level of in-house production depth using thermoplastics such as PP, PPs, PVC, PE and PVDF, among others through plastic welding including ultrasonic welding, vacuum forming and injection moulding. The systems achieve volume flows of up to over 100,000 m³/h and are also available in ATEX versions. Customers include, among others, surface technology/electroplating, chemicals, microelectronics, the solar industry, pharmaceuticals, the food industry as well as waste and sewage sludge incineration. The company has been certified to ISO 9001 since 1993 and additionally to ISO 14001 since 2024, and serves customers through five own subsidiaries and 15 representatives worldwide.
- Site
- Rösrath
- Processes
- Plastic fans (centrifugal, duct, roof and special fans), Exhaust air scrubbers / exhaust gas scrubbers / absorbers (counter-current and cross-current, Apparatus construction in plastic (containers, apparatuses, process systems), Pipework construction in plastic, Ventilation systems / ventilation ducts and pipes in plastic (rectangular, round), Gas-to-water heat exchangers / heat exchangers in plastic (energy recovery), Filter housings and exhaust air filters, mist eliminators, demisters, aerosol separators, Fibre composite mouldings / composite materials
- Materials
- PP: polypropylene, PPs: polypropylene, flame-retardant, PPs white: polypropylene, flame-retardant, white, PPs-el: polypropylene, flame-retardant, electrically conductive, PVDF: polyvinylidene fluoride, PVC: polyvinyl chloride (rigid PVC), PE: polyethylene (PE black, UV-stabilised), Polypropylene
- Certificates
- ISO 9001, ISO 14001
- Founded
- 1945
- Employees
- 200
- Industries
- Surface technology / electroplating, Chemicals, Microelectronics, Solar industry, Environmental and process engineering, Food industry
- 01
Consulting and process engineering design
- 02
Engineering and 3D planning
- 03
Vacuum forming, injection moulding, plastic welding
- 04
Assembly and installation
- 05
Commissioning
- 06
Maintenance, inspections, spare parts service
Materials and Processes
Polypropylene
Universal thermoplast with broad chemical resistance to salts, acids and alkalis for fans, scrubbers and apparatus construction.
Polypropylene, flame-retardant
Flame-retardant PP for fans and systems with increased fire protection requirements.
Polypropylene, electrically conductive
Flame-retardant, conductive PP for ATEX applications and explosion-hazard areas.
Polyvinylidene fluoride
Fluoropolymer with high chemical, thermal (up to 140 °C) and weather resistance for extreme requirements.
Polyvinyl chloride (rigid)
Chemically resistant, flame-retardant and readily weldable material for apparatus and container construction.
Polyethylene (UV-stabilised)
Impact-resistant, weather-resistant material for outdoor systems, scrubbers and pipework.
Vacuum forming (thermoforming)
Process for streamlining fan production, in use since 1974.
Injection moulding
Production of fan impellers, first presented in 1959 as a world innovation.
Plastic welding
Welding of thermoplastics including ultrasonic methods for leak-tight joining of components and housings.
Fibre composite mouldings
GRP, CFRP and AFRP mouldings or PVDF liners with polyester laminate for the highest mechanical demands.
Locations
Rösrath
DESales, production, assembly and service location
- Materials
- PP, PPs, PPs-el, PVDF, PVC, PE
- Plastic welding equipment
- Assembly
Spiez
CHHeadquarters and main production site of the COLASIT AG
- Materials
- PP, PPs, PPs-el, PVDF, PVC, PE
- Vacuum forming machine
- Duct welding machine (in-house built)
- Ultrasonic plastic welding
's-Hertogenbosch
NLSubsidiary Colasit Holland B.V., seat of the Colasit Holding
Skara
SEBranch office COLASIT Scandinavia AB
Singapore
SGBranch office COLASIT Asia Pte Ltd
Products and Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Plastic fans (centrifugal, duct, roof and special fans)Plastics | – | – | – | – | PP, PPs, PPs white, PPs-el, PVDF, PVC, PE |
| Exhaust air scrubbers / exhaust gas scrubbers / absorbers (counter-current and cross-currentPlastics | – | – | – | 70000 m³/h volume flow | PP, PPs, PPs-el, PVDF, PVC, PE |
| Apparatus construction in plastic (containers, apparatuses, process systems)Plastics | – | – | – | – | PP, PPs, PVDF, PVC, PE |
| Pipework construction in plasticPlastics | – | – | – | – | PP, PPs, PVDF, PVC, PE |
| Ventilation systems / ventilation ducts and pipes in plastic (rectangular, round)Plastics | – | – | – | – | PP, PPs, PVDF |
| Gas-to-water heat exchangers / heat exchangers in plastic (energy recovery)Plastics | – | – | – | 100 m³/h – 150000 m³/h | PP, PPs, PPs-el, PE, PVDF |
| Filter housings and exhaust air filters, mist eliminators, demisters, aerosol separatorsPlastics | – | – | – | – | PP, PPs, PVDF |
| Fibre composite mouldings / composite materialsPlastics | – | – | – | – | Fibre-reinforced plastic, PVDF liner with polyester laminate |
| Aquaculture systemsPlastics | – | – | – | – | Plastics |
| Plastic welding (including ultrasonic welding)Joining | – | – | – | – | Thermoplastics (PP, PE, PVC, PVDF) |
| Vacuum forming (thermoforming) of plasticsPlastics | – | – | – | – | Thermoplastics |
| Injection moulding (injection-moulded fan impellers)Plastics | – | – | – | – | Plastics |
| Assembly, commissioning, maintenance, product inspection, testing, spare parts serviceAssembly | – | – | – | – | – |
| Engineering and process engineering design of exhaust air purification systems (3D planning)Engineering | – | – | – | 110000 m³/h (complete systems) | – |
2 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| Vacuum forming machine | – | 1 | – | 1974 (Besc | Spiez (main production site) |
| Duct welding machine (in-house built) | Colasit (in-house built) | 1 | – | 1974 (Entw | Spiez |
Additional services
Quality
Colasit operates according to a certified management system with a process-optimised organisation and LEAN principles in manufacturing and service processes; the company has been certified to ISO 9001 since 1993 and additionally to ISO 14001 since 2024.
| Evidence | Rösrath |
|---|---|
| ISO 9001 | |
| ISO 14001 |