Individual development solutions and production of complete blower systems or individual ventilation modules as well as optimisation-services for existing systems.

Standardised and universal ventilation components “off the shelf“ often do not provide the required efficiency performance that is ultimately demanded of the overall system. Therefore, we develop or optimise complete fan systems or individual fan elements according to customer requirements. We analyse the motorisation, power electronics, duct routing and available installation space for the required flow efficiency and minimise any noise emissions at the same time.
The required components will be injection-moulded in our own plants. Since 1970, more than 200 million fan wheels have left our plants and are being used in the drive technology, automotive, railway, ventilation, air-conditioning and refrigeration technology sectors, in the household appliance industry and in the area of residential ventilation.


Service portfolio in development.

Development process

Phases in development.

  • Requirements analysis fan, motor, electronics, housing and duct

  • CAD design and simulation of fans, housing and ducts

  • Prototyping

  • Tests under real conditions

  • Tool design and construction

  • Release / Series production


Service portfolio
in optimisation.

Within the scope of an optimisation order, we analyse each ventilation module individually with regard to performance, noise development, energy consumption and economic efficiency and then transfer this knowledge to the overall system.
For our customers, even the replacement of metal fan wheels with plastic leads to a significant increase in the ratio.

» Increased performance
» Higher energy efficiency
» Reduction of noise emissions
» Better use of existing installation space

Appliance development

Customised appliances with
integrated fan technology.

In addition to the development, production and optimisation of blower systems, we are also active in the development and series production of customised complete (OEM) appliances with integrated ventilation technology as well as of assemblies, among others for the white goods, medical technology, gastronomy and household appliance industries.

Examples of products with integrated blower technology that have been developed or optimised by us as part of a specific customer order and manufactured in series or are still being manufactured today:

  • Air purifiers or air washers
  • Units and systems for domestic ventilation
  • Cooker hoods
Details on the development of appliances

Your contact
for ventilation.

Key Account Management

Evamaria Angerer


+49 8071 9150


Division Ventilation & Surfaces

Am Burgfrieden 2
D-83512 Wasserburg


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    Gronbach worldwide


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      • Order volumes
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      • Requests from private individuals
      Order volumes

      Please take into account that our production is geared towards medium to large series production. We are therefore unable to process requests for very small quantities for economic reasons.

      Requests from private individuals

      We ask for your understanding that we cannot consider requests from private individuals of any kind.