Manufacturing and installation of ventilation systems and components made of thermoplastics for laboratory and industry
Lehmann & Wiesner GmbH
Vaterstetten-NeufarnNew on Amplifa
Plastics technology for laboratory and industry
Lehmann & Wiesner GmbH in Vaterstetten-Neufarn near Munich has specialized in the processing of thermoplastics for over 40 years and belongs to the Käuffer Group, founded in 1866. The company plans, manufactures and installs supply and exhaust air systems for industry and laboratories – with or without heat recovery – as well as measurement, control and regulation technology including commissioning and documentation. In its own workshop, all air-contacting components are made of plastic: ducts and duct fittings, pipes and pipe fittings, silencers, grilles, rosettes, wall terminations, CNC-milled parts, volume flow controllers as well as containers, trays, hoods, housings and spray and paint booths. The materials used are PP, PPs, PPs-el, PE, PVC and PVDF, enabling use with aggressive media in laboratory and industrial environments. In addition, the company acts as a specialist dealer for plastic equipment such as radial, duct and roof fans, fume extraction hoods and articulated arm extraction systems, and offers maintenance, repair and service. Areas of application include laboratories, swimming pools, electroplating systems and outdoor areas; projects are realized regionally, nationwide and internationally.
- Site
- Vaterstetten-Neufarn
- Processes
- Manufacturing of ventilation and special components from plastic in own workshop, CNC milling of plastic parts, Manufacturing of ducts and duct fittings, Manufacturing of pipes and pipe fittings, Manufacturing of silencers, grilles, rosettes and wall terminations from plastic, Manufacturing of containers, trays and hoods from plastic (plastic containers, exhaust hoods,, Special fittings such as volume flow controllers and exhaust air units (custom-made), Manufacturing of plastic fans (radial, roof and special fans)
- Materials
- PP, PPs, PPs-el, PE, PVC, PVDF, Polypropylene (PP, PPs), electrically conductive polypropylene (PPs-el)
- Certificates
- ISO standard certified, ISO standard certified (standard not specified)
- Founded
- 1980
- Industries
- Laboratories, Industry, Chemical/chemically aggressive environments, Swimming pools, Electroplating and other industrial facilities, Outdoor operations
- 01
Design/Engineering (also without technical drawings)
- 02
Plastics manufacturing in own workshop (CNC milling, duct, pipe and
- 03
Trading in plastic equipment and components
- 04
Planning, delivery and installation of the systems
- 05
Measurement, control and regulation technology incl. commissioning and
- 06
Maintenance, repair and service
Materials
Polypropylene (PP, PPs)
Standard material for air-contacting ventilation components and containers in laboratory and industry.
electrically conductive polypropylene (PPs-el)
For applications with requirements for dissipating electrostatic charge.
Polyethylene (PE)
Chemically resistant thermoplastic for ducts, pipes and containers.
Polyvinyl chloride (PVC)
For pipes, fittings and ventilation components in contact with aggressive media.
Polyvinylidene fluoride (PVDF)
Highly chemical-resistant material for demanding ventilation applications.
Locations
Vaterstetten-Neufarn
DEManufacturing, sales, Lehmann & Wiesner site (plastic ventilation technology)
- Materials
- PP, PPs, PPs-el, PE, PVC, PVDF
- CNC milling machine (plastics processing)
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Manufacturing of ventilation and special components from plastic in own workshopPlastics | – | – | – | – | PP, PPs, PPs-el, PE, PVC, PVDF |
| CNC milling of plastic partsMachining | – | – | – | – | PP, PE, PVC, PVDF |
| Manufacturing of ducts and duct fittingsPlastics | – | – | – | – | PP, PE, PVC |
| Manufacturing of pipes and pipe fittingsPlastics | – | – | – | – | PP, PE, PVC |
| Manufacturing of silencers, grilles, rosettes and wall terminations from plasticPlastics | – | – | – | – | PP, PE, PVC |
| Manufacturing of containers, trays and hoods from plastic (plastic containers, exhaust hoods,Plastics | – | – | – | – | PP, PE, PVC |
| Special fittings such as volume flow controllers and exhaust air units (custom-made)Plastics | – | – | – | – | PP, PE, PVC |
| Manufacturing of plastic fans (radial, roof and special fans)Plastics | – | – | – | – | PP, PE, PVC, PVDF |
| Planning, delivery and installation of industrial and laboratory supply and exhaust air systemsAssembly | – | – | – | – | PP, PPs, PPs-el, PE, PVC |
| Design and development of plastic ventilation systems (also without technical drawings)Engineering | – | – | – | – | PP, PE, PVC, PVDF |
| Installation of plastic ventilation systems and components incl. training/commissioning andAssembly | – | – | – | – | PP, PE, PVC, PVDF |
| Planning and installation of measurement, control and regulation technology (MSR) for laboratoryAssembly | – | – | – | – | – |
1 Anlagen & Maschinen
| Machine | Manufacturer / model | Quantity | Working area | Year built | Site |
|---|---|---|---|---|---|
| CNC milling machine (plastics processing) | – | – | – | – | Vaterstetten-Neufarn |
Additional services
Reference customers
Quality
Production takes place in an own workshop by specially trained skilled personnel with high quality standards; according to the company, the operation is certified to an ISO standard (standard not further specified).
| Evidence | Vaterstetten-Neufarn |
|---|---|
| ISO standard certified (standard not specified) |
History
- 1980
Founding or start of plastics processing at the Neufarn site; today over 40 to 45 years of competence in the processing of thermoplastics.
- 2021
Reference project: new installation of an exhaust air system for OELCHECK GmbH (execution period 2021–2022, order volume €68,000).