







- This product is used for the following applications:
- 01Food factory: RKD is used to remove the chocolate from the mold in chocolate factory
- 02Elimination of adhesion on wall surface in rotary drier
- 03Removal of extra paint in powder paint
- 04Prevention of adhesion on wall surface of workpiece for furnace, knocking off of weld spatter, prevention of adhesion on workpiece on mesh in drying furnace
- 05Used for inscription
- 06Used for telescope enforcement
- 07Removal of water on base
Features
The Air knocker series (direct impact type) are unique equipment in which the force of compressed air causes the piston to strike the hopper wall surface directly and energetically, which eliminate the adhesion or clogging of powder. In addition, this knocker is excellent in safety and economics because it can be used only by air supply, and it can be used safely for powder that has a characteristic to show adhesion when receiving the centrifugal force. While the indirect impact type strikes the mounted knocker base at a predetermined position, the air knocker is used in wider range of applications on your idea, such as striking the moving object and striking the target with the knocker itself moved. It is also used like the indirect impact type.
Operating principle of Air knocker
1. The compressed air flowed into the knocker is first supplied to the valve chamber to depress the mushroom valve and then is stored in the accumulator.2. When the three-way valve is actuated to exhaust the air from the valve chamber, the compressed air in the accumulator moves the mushroom valve upward.
3. When the mushroom valve moves, the compressed air in the accumulator depresses the piston energetically, which strikes the base surface. That impact force eliminates the adhesion or blockage of powder.
Achieved miniaturization and weight reduction
Relay knocker RKD-PB has achieved miniaturization while maintaining the same tank capacity as the old model. In addition, the weight has been reduced by changing the cylinder to aluminum die casting.

Air knocker impact force can be changed only by adjusting the supply air pressure.

Can be operated multiple air knocker units with using relay piping mechanism.

ECO-friendly / Oil- free operation

Excellent durability and simple structural design

World largest class air knocker RKD120P for big hopper, silo and etc. (mining, feed grain, steel works etc.)

Wide range Air Knocker models

Air knocker installation method

