Technology

Progressive cavity pumps - Volumetric dosing systems

The ViscoTec endless-piston-principle - rotating displacement pump

All volumetric dosing pumps, metering systems, precision volume dosing devices, dispensers, mixers, dosing systems, or delivery machines are based on the endless piston principle and are used for example with adhesives, paints, soldering pastes and sealants, but also with cosmetics such as mascara and vaseline, or in the food industry for filling sauces, etc.

All media, which in certain cases can have a viscosity of up to 7,000,000 mPas, are conveyed and dosed practically free of pulsation and with an extremely low shear force. You will receive comprehensive advice for every application and extensive tests will be carried out for particularly complex challenges. Our dosing pumps and dosing systems are optimally adjusted to the application case in question, providing the best possible options for cleaning them in food applications, for example.

Our progressive cavity pumps focus on dosing (dosing technology, metering technology), applying, filling, mixing, emptying and unloading, preparing or processing (degassing or barrel emptying, for example) a wide range of different liquids or pastes. Our core competence really comes to the fore with fluids which are high-viscosity, solids-loaden, abrasive or/and shear-sensitive.

How our technology works:

Why to choose our progressive cavity pump technology:

Progressive cavity pump work without any valves – compared to piston pumps, time pressure systems or gear pumps. This fact reduces the amount of wear and tear parts and increases the level of accuracy at the same time. If the dispenser inlet is properly supplied, the pump works endlessly without any refill steps in between. This enables a continuous production.

Particularly low-density materials require an extremely gentle handling. The use of a stainless-steel spindle and an individually aligned elastomer decreases the level of shear to a minimum, destroying not any microspheres during processing.

The possibility to perform a suck back (dispenser turns in reverse direction) facilitates a break of the thread after dispensing and increases the dosing accuracy to 99%.

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