Feed-and-turn dryer

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The feed-and-turn dryer, originally developed for drying very wet maize, is a tried and tested universal dryer that has proven itself thousands of times over. It has been part of the product range of STELA, who introduced this drying principle to Germany, for over 45 years. The basic principle of the feed-and-turn dryer has been used for decades and systems of this sort are now made by numerous manufacturers.


The dryer
• is extremely strong and has a long service life
• is cost-effective in terms of investment and operation
• is easy to use
• is flexible - many different products can be dried with it
• uses energy very economically • allows both continuous and discontinuous (batch) operation
• allows for a wide range of material heights, from 40 to 400 mm
• is also available “ready to plug in” as a mobile model.
• Automatic turning of the product is carried out entirely without moving belts.

That means:
• A long service life (no belt wear to worry about)
• Very fine products can also be dried using fine meshed grates
• 100% protection against false air

Drying principle
Hot air is blown through a double floor – a grate floor – through the product to be dried. A moving paddle system mixes and conveys the product throughout the drying time. This simple principle guarantees a virtually maintenance-free and fault-free drying process. The paddle wheel is moved across the dryer by the running gear several times throughout the drying process. The change of direction is controlled by limit switches and the corresponding automatic control system. .
This combination ensures optimal mixing of the goods and thus consistent and homogeneous drying. The risk of clumping is avoided with this system, even if the goods are heavily contaminated or extremely damp.
For small and medium-sized quantities of drying material, the feed-and-turn dryer is the ideal application. Two different operating modes are available: batch drying and continuous drying. With small quantities, batch drying is selected, i.e. the dryer is filled and the drying programme is then started. .
Once the dryness level required has been reached, cooling can be carried out if necessary and emptying follows automatically.


STELA has developed a special feed-and-turn mechanism, by means of which green plants, herbs, grasses, pellets, granulates, wood chips, pomace and many similar products can be dried. In the mid power range of around 2,000 kW, the feed-and-turn dryer with its new turning mechanism is an outstanding alternative to a belt dryer.

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The turning mechanism in operation


Contact person

Hans-Thomas Peisl

Hans-Thomas Peisl

Sales agricultural South

T +49 151 62863950

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Christoph Höfler

Christoph Höfler

sales agricultural North of Germany

T +49 8724 899-29
M +49 175 9346342

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