Emotron bio energy VFD for sludge dryer cells

GMB BioEnergy is a company with leading expertise and sustainable solutions in the field of water safety, water quality, bioenergy and industrial construction & infrastructure.

When used for sludge dryer cells, IP54 FDU frequency drives are highly regarded for the savings they deliver in terms of operating and fuel cost. Emotron VFDs are used to make sure the sludge is dried and (bio)gas and organic granulate is extracted.

Specialized fans for sludge dryer cells

Sludge dryer cells require ventilation to dry sludge and thus form (bio)gas and extract organic granulate. To optimize this process, many years of application know-how and specialized equipment is required.

VFDs for the renovation of 31 sludge dryer fans

GMB BioEnergy needed to update 31 drying/ climate controlled fans for their plant, 30kW each from DOL to VSD. The Emotron FDU048-061 variable frequency drive including options was chosen for this project.
The Emotron drives were preferred due to their robustness and ability to handle warm, humid and dusty environments. Additionally, the easy menu structure and 4-line display makes it easy to run.
Mr Laurens Pelgrim, Project Engineer: “Emotron drives are robust and easy to use. CG Emotron gives us excellent service and 24/7 support.”


Service offer including 24/7 response

A serice agreement including maintenance and service response was chosen for peace of mind.

The knowledgeable service team that helped install the drives is also available on a 24/7 response agreement. Every second year, the team calls in for regular maintenance.


For this project, CE certified IP54 inverters with PTC/PT 100 and ProfiNet IO 2-port are used. At Emotron, expert knowledge is always at your fingertips. Your Oil & Gas project team will follow you every step of the way. We manage a design review followed by an in-house survey when necessary and have well-established contacts with all the major certifying bodies.

We test all of your components individually before commissioning for your peace of mind.

Global service network

With a global partner network and remote access solutions, we can offer service contracts to fit your needs. The complete service offer includes:

  • Commissioning
  • Training
  • Test facilities
  • 24/7 support
  • Remote access
  • Application diagnostics
  • Maintenance
  • Extended warranty
  • Repairs
  • Rentals