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Mechanical dewatering is the use of mechanical force to remove the water from the product.
This method is the most efficient way to get rid of the water. VetterTec has over 90 years of experience in the mechanical dewatering.
Screw Presses – Principle of Operation
VetterTec screw presses are used to dewater fibrous materials of different consistencies.
They are driven by mechanical or hydraulic systems with infinitely variable speed or electronic control.
- the wet material is fed into the filling box (feed hopper)
- moves into the screw / screen section and is compressed by screw compression
- the liquid is passing the screen and is released in the collection box while the dewatered product leaves via the discharge box
Screw Design
Basket Design
Feed Hopper
Loose Bearing
Enclosure (opt. with Wash System)
Drive Unit
Coupling System
Retention Cone
Standard screw press in cylindrical design, also available in conical design.
Screw Presses - 2 basic designs
Depending on the application, we use specific conical or cylindrical screws. Heavy duty design is possible. Special designs – adapted to customer’s requirements in Food standard, GMP (Good Manufacturing Practice) – are also available. The specific screen basket execution ensures a resistant and significant increase of the dewatering area.
VetterTec screw press in conical design
VetterTec screw press in cylindrical design
Fields of Application
VetterTec screw presses are used in a wide range of applications. Predominantly, they are used for mechanical dewatering, but also to wash out soluble parts of a product.
For optimal operation each press is especially tailored to its application. To this end, either a conical or a cylindrical design can be chosen, the screw geometry is adapted, the screen perforation optimized, the drive designed, etc.
According to requirements, pressing tests either on the customer’s site or in a lab can be a useful supplement.
Starch and Grain Industry
Food Industry and By-products
Alcohol / Ethanol and Brewery INDUSTRY
Pulp & Paper and Environmental Industry
Your application is not on the list? Feel free to contact us:
we have several test facilities, combined with our long-term experience in the drying we would be pleased to consult for the best drying solution for your product.
VetterTec Screw Presses – Design Examples
Specific design in ATEX version
CMC (Carboxymethyl Cellulose) – dewatering of by-products in the Food Industry.
Splash-proof Standard design
Dewatering of fibres in Corn wet milling plants
Special design for the pharmaceutical industry
Highly hygienic with extremely smooth surface and integrated high-tech cleaning: with the newly developed screw press, VetterTec meets the high state-of-the-art requirements of the pharmaceutical industry (FDA standard).
Twin design
Esp. used for fine structured products and products with low adhesion. Example of use: Food Industry
Dewatering of fruits/vegetabled for the production of pectin, e.g.
- carrots
- apples
- lettuce
- pineapples
- orange peels
Screw Press for pre-dewatering of corn germs
Used in the Corn Starch Industry. within the corn wet milling process.
Special design for gluten dewatering
Used in the Starch Industry.
The special design of the gluten press is equipped with an automatic washing system.
Specific conical design
Example of use: Environmental Industry.
Dewatering of fermented organic waste for the use of
- compost or as
- fertilizer
- orange peels
Screw press for vital wheat gluten
Used in the Wheat Starch Industry.
Coffee Press
Used in the Beverages Industry for the dewatering of coffee grounds.
Download Brochure (Vettertec Screw Presses)
Download Brochure (Vettertec Screw Presses Prensas de tornillo)
Download Brochure (Vettertec Screw Presses Prensas de Rosca)