Green Energy


CASE: Bioethanol process optimization

Slurries with representative viscosity require representative testing for scale-up


Biogas technology

  • Mashing
  • Sanitation
  • Hydrolysis
  • Fermentation
  • Post-fermentation
  • Aeration
  • Slurry storage

Bioethanol & biodiesel

  • Mashing
  • Per-saccharification
  • Saccharification
  • Fermentation
  • Enzyme and yeast fermentation
  • Trans-esterification

The UTG Mixing Group is your partner for new methods in biogas systems and renewable energy production.

We have extensive process and agitator know-how, for example in second-generation bioethanol production and modern fatty acid ester processes for biodiesel.

Instead of standard solutions, we consistently apply individual adaptations and further developments that make our agitators leaders in their field.

We design and produce highly efficient axial and countercurrent flow impellers with optimized low shear rates according to individual specifications. The agitators ensure very gentle product treatment and are available as top or side-entry agitators. Agitators may be implemented with free overhang shafts without bottom-bearing, which avoids maintenance inside the tank. Side-entry agitators have reliable drive and sealing systems and can be equipped with a fast change device to replace seals on a full tank.

Agitation processes require individual adaptations

Individual solutions in close cooperation with our customers are based on detailed analysis. UTG Mixing Technology R&D Center consists of a testing laboratory in Warburg, Germany, and is backed up by our process experts and researchers at our local offices in Finland and Germany. We also offer a wide range of our own innovations that provide optimized flow performance. We develop and design according to case-specific requirements in order to optimize new customer processes.


In order to remain competitive, we make sure that our price, services, products and delivery time meet always customer’s expectations. For us high quality means that the customer knows what they are getting and when.

We look forward to your inquiry and are available to answer any questions you may have.

By submitting a contact request, I consent to the UTG Mixing Group processing my information in accordance with the Privacy Policy. I can withdraw my consent at any time.


Henri Malmi
Sales Manager

+358 40 510 7585



Michael Möller
Sales Manager

+49 5641 903-70 / Mob. +49 173 8790237

Stelzer Rührtechnik International GmbH
Visiting address:
Speckgraben 20,
34414 Warburg, Germany