Rotary feeders
We offer different types of air locks, feeders, valves, and individual solutions. Please click on the arrows in the listing to open or close the details.
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Light metal-to-metal sealing feeders PSL
PSL feeders are metal-to-metal sealing feeders for charging and discharging operations in a dryer and sifter area.
The feeder consists of a stator (housing), rotor with inclined blades, 2 bearing caps on one side and a bearing arrangement on the other, and is directly driven by a bevel-geared motor.
The stator has not been provided with a wear-resistant protective coating, but the rotor blades are armour-plated.
Method of operation:
The chips are fed down an inclined chute into the path of the spinning rotor via cyclones, filters, or mechanical conveyors. In the upper section of the feeder, a bevel-ground cutter takes off any splinters raised by the turning motion of the rotor.
The feeder is not equipped with a bottom cutter.
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Rotary valve with knife PHD
PHD feeders are metal-to-metal sealing feeders for use in pneumatic medium-pressure conveyor systems at pressures of up to approx. 500 mbar.
The feeder consists of a stator (housing), rotor with shaft, caps with bearing units, support, feed injector, and drive assembly including block gearing, drive motor, and v-belt with protective casing.
The stator has been provided with a wear-resistant protective metal coating by means of metal spraying. The rotor blades are armour-plated.
Method of operation:
The chips are fed down an inclined chute into the path of the spinning rotor via cyclones, filters, or mechanical conveyors. In the upper section of the feeder, a bevel-ground cutter takes off any splinters raised by the turning motion of the rotor. A cutter in the lower section of the feeder serves as a stripper.
The turning motion of the rotor forces the material through the bottom-mounted injector into the conveyor pipe.
The type designation PHD 210 = 210m³/h at a 55% filling level.
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Rotary valve with elastic sealing strips PZR
Rotary valves with elastic sealing strips are used to ensure as close as possible airtight and pressure-tight sealing underneath cyclones or filters. The rotary valves consist of a stator and a rotor. The rotor has a certain number of blades, which then form so-called chambers. The chambers are filled from above with bulk material such as dust or chips and then emptied downwards.
A filling level of 30 - 50% is recommended.
The rotary valves are driven by a geared motor via chain drive. A total of 18 sizes are available so that large flow ranges can be covered.
Areas of application include the wood-based materials industry, the paper industry, and the chemical industry.
![](assets/images/c/pneumotec_PKS_grobgutschleuse_275x200-2a697e5c.png)
Coarse air lock with moveable wall PKS
Air locks of the type PKS are preferably used on shovel dryers for discharging coarse particles and stones.
Technical structure:
The rotor of the sluice has a distance of 3 mm from the stator wall. After a stone or coarse material enters the sluice, a so-called evasive wall is pushed away via plate springs. The material can thus, be ejected without jamming.