Hydraulic drives for decanter centrifuges
Innovative drive technology from Viscotherm for environmentally friendly solutions

Used for ecology

“Increased decanter power and improved separation results thanks to the hydrostatic ROTODIFF drive.”

For over 45 years, Viscotherm AG has continued to develop separation technology with ROTODIFF decanter centrifuge drives through continuous innovation. One of the main features is the optimal ease of adaptation to a wide variety of operating conditions.

Application examples: Waste water treatment plants / Chemical industry / Food industry / Drilling technology / Bio fuels / Environmental technology, mobile equipment / General industry

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Environmental Technology

Industrial waste water, slurry, communal waste water, tannery sludge, slurry oil, bioethanol etc.

[Translate to english:] Hydraulischer Dekanter Antrieb für Bohrinseln von Viscotherm AG

Geo -drilling technology

Treatment: Reclamation of drilling fluids, reclamation of barite, removal of water and conditioning of drilling mud, tunnelling etc.

Mining and ore preparation

Aluminium hydroxide, calcium carbonate, kaolin, coal mines, coal dust, titanium dioxide etc.

Chemical products

Alum sludge, iron oxide, dye pigments, gypsum, silica, mineral oil, polyethylene, PVC various salts, zinc chromate, bio substrates, insulin, intermediate pharmaceutical products

Foodstuffs

Beer yeast and wine lees, blood, fish meal, fish industry, meat extracts, fruit juices, gelatine, vegetable juices, grain mash, gluten, potato protein, potato peels, cheese production, casein, lactose, monosodium glutamate, plant extracts, vegetable oil, proteins, starch, animal fats, drinking water processing, wine yeast and wash, wheat starch etc.

Swiss Quality – thousands of drive systems in operation worldwide!

Hydraulic solid bowl – scroll centrifuge drives from Viscotherm offer significant advantages. This is particularly true of products that are difficult to process, such as meat-and-bone meal, fish meal, casein, lactose, starch, PVC, cellulose derivatives etc. These products have a tendency towards vibration or adhesion (chatter). The service life of a ROTODIFF drive is many times longer than that of a gear unit. This is fully applicable in potentially explosive atmospheres thanks to ATEX certification.

VISCOTHERM develops and produces hydraulic ROTODIFF drive systems for a wide variety of applications. The drive systems are designed based on the required torque (ROTODIFF) and required differential speed (pump unit).

Over 5000 drive systems in use worldwide!

  • Alfa Laval A/S
  • Andritz AG
  • Broadbent Th. & Sons Ltd. 
  • Centrisys Inc.
  • Derrick Corporation
  • Flottweg GmbH & Co
  • GEA Westfalia Separator Group GmbH
  • G-Tech 
  • Hakki Usta Ogullari Ltd
  • Hiller GmbH
  • Hiroshima Metal & Machinery Co.Ltd. 
  • Huning
  • Pieralisi MAIP S.p.A.
  • Shanghai Centrifuge Institute
  • Tomoe Engineering Co.Ltd.
  • TSK Co.
  • Siebtechnik GmbH
  • Wonjin Machinery Co.
  • und viele mehr

Areas of application

Waste water treatment plants

New York City, Philadelphia, Seattle, Atlanta, Baltimore, Toronto, Seoul, Singapore, Tokio-Kasai, Yokohama, Ho-Chi-Minh, Wien, Amsterdam, Helsinki, Prag, Valencia, Berlin, Köln Stammheim, München, Frankfurt, Thames Water etc.

Chemical industry

Ashland, Akzo Nobel, Basf, Bayer, Dow Chemical, Du Pont, Eastman, Lanwxess, Novartis, Sandoz, Vinnolit, Shin Etsu etc.

Food industry

Adm, Bayrische Milch Industrie, Del Monte, Dr. Oetker, Eemmi, Gallo, Ibp, Mondavi, Polskamp, Syral, Sunkist etc.

Drilling technology 

(Oil industry, tunnelling, mining)
Amc Baker&Hughes, Drexel, Halliburtion, Herrenknecht, Nov, Oiltools, Psd, Scs, Swaco, Task, Wayss&Freytag etc.

Coal industry

SASOL-South Africa, Somerset etc.

Environmental technology - mobile systems

Huning, Mse, Petroleum Solids Control, Clean Harbors, Veolia etc.

General industry

Mercedes Raststatt, Nampak, Oj-Papers, Sappi ect.