Exchange devices 

After 20,000 operating hours, at the latest after 3 years (Industrial Safety Ordinance (BetrSichV) Section 15 para. 15), you must take a closer look at your biogas fan. Seals and bearings must be replaced, components must be checked for wear or corrosion. After all, the fan should continue to do its job safely and reliably – without any unpleasant surprises.

Minimal downtime due to replacement unit

The necessary tests on the ATEX fan, e.g. for leakage and imbalance, require several days and cannot be carried out on site at your plant. However, every day of standstill of your plant is associated with costs. This does not have to be the case: with an identical replacement unit, the change is done within 1-2 hours. You simply return your old unit to us and receive a credit note.

We will handle the entire process

We deliver the replacement unit and collect the old unit from you after the exchange. No customs formalities, no transport organisation, no paperwork for you. It couldn’t be any simpler.

As easy as this:

  • You send us your unit number and the desired delivery date with your order.
  • You will receive an identical replacement fan free of charge in proven quality including a 12-month warranty. A lead time of approx. 10 working days is sufficient for this.
  • You replace the unit and place the old fan on the pallet you received from us, ready for collection.
  • We collect the old unit from you. That’ s it!

Don’t ever…

  • open the housing of an ATEX fan yourself. There is a risk of sparking if the unit is not assembled properly!
  • make any modifications to the unit and do not allow anyone else to do so either! Tampering by third parties will invalidate the declaration of conformity; the unit may then no longer be operated in an Ex zone

As an alternative to a replacement unit, we can also overhaul your fan in our factory. It will then be available again after 1-2 weeks. We will gladly organise all transport and formalities for you. Request your complete offer today.

If the fans are not replaced by our own specialist personnel, our service partners in Germany are available for the entire process, including installation. In this case, please contact one of the following companies directly:



Aerzen Belgium N.V.
A. De Coninckstraat 11
BE-3070 Kortenberg, België

Ann Healaerts
+32 2 757 22 78



Richter ECOS GmbH
Am Haupttor, Bau 5211
D-06237 Leuna

Ulf Richter
03461 – 434 049


Bioagfo Energie GmbH
Industriestrasse 5
D-07937 Zeulenroda-Triebes

Steve Schlegel
036628 – 987 418


Elbe-Förde Energieservice GmbH
Paul-Dessau-Strasse 5
D-22761 Hamburg

Edmund Krause
040 – 450 66 501


MK Gastechnik GmbH
Am Bergkamp 16
D-32657 Lemgo

Andreas Meise
05261 – 921 77 51


SELECTA Bioenergie GmbH
Bachstraße 22
D-36460 Krayenberggemeinde

Alexander Nehrig
036963 – 224260


H.G.S. GmbH
Kleinewefersstraße 1
D-47809 Krefeld

Michael Valkysers
02151 – 525 56 16


BioConstruct GmbH
Wellingstrasse 66
D-49328 Melle

Patrick Baller
05226 – 593 21 84


KWK-tec GmbH
Hausener Landstrasse 36
D-56727 Mayen

Ralf Schuller
02651 – 701 07 22


NQ Service GmbH
Wolfsbronn 17
D-91802 Meinheim

Andreas Niederlöhner
09146 – 942 420


Schmack Biogas GmbH (Viessmann Group)
Bayernwerk 8
D-92421 Schwandorf

Jochen Stammer
09431 – 751 186



La Meccanica Turbo Diesel Srl
Calata Gadda
IT-16128 Genova

Alberto Bacchin
+39 010246 – 111 10 10

Czech Republic


B & SPOL s.r.o
Nadrazni 2036
CZ-39301 Pelhrimov 

Jakub Bilek
+42 0565 – 323 227



Grup ASM Endüstriel SAN.TIC.A.S
4. Sanayi Sitesi 129/14 Sokak 20
TR-35050 Bornova-Izmir

Ailan Akatlar
+90 232 – 375 57 35

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