Pneumatic shake devices
Pneumatic knocker with air tank
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Pneumatic knocker could be used for bulk material release if the bulk material was sticked on the walls of tubes or filling hopper. Compared to ball vibrator, knocker can be used for materials which solidify by intensive shedding; in this case individual shakes are well-proven. Knocker should be controlled as well as double acting cylinder. The function is then given by the impulse effect when the pressure drop is created on the piston, the air before the piston is released and then the piston is fired against the wall of the knocker. Thanks to this principle the hammer does not require high demands on the flow of the distributor and the flow through the hoses. |
Order codes | Technical data | Dimensions | Recommended connection | Data sheet (PDF) | Technical information |
Technical data
Working pressure | 0,6 MPa |
Min. pressure | 0,2 MPa |
Max. pressure | 1,0 MPa |
Temperature range | -20oC to +80oC |
Working medium | modified compressed air |
Type | OKI32 | OKI40 | OKI50 | OKI63 | OKI80 |
Piston diameter [mm] | 32 | 40 | 50 | 63 | 80 |
Piston weight [kg] | 0,15 | 0,25 | 0,66 | 1,20 | 2,13 |
Reccommended orifice of air supply [mm] | 4 | 6 | 6 | 6 | 8 |
Reccommended flow capacity [Nl/min] | 400 | 600 | 600 | 600 | 800 |
Impulse [Ns] | 1,5 | 2,7 | 5,2 | 12 | 20 |
Kinetic energy [Nm] | 7,5 | 14 | 20 | 60 | 98 |
Max. frequency of shocks [min-1] | 30 | 24 | 20 | 15 | 12 |
Weight [kg] | 1,2 | 1,8 | 4 | 5,9 | 9,7 |
Instalation and operation notes:
We recommend to fix fixing screws with Loctite 242E or similar adhesive.
There is necessary to check right tightening of fixing screws regularly to prevent their releasing.
We recommend to use quick exhaust valve on exhaust on impact side not to decrease knocker‘s effectivity.
Construction / materials
- flange: zinc plated steel
- end cap: aluminium casting
- body: drawn dural tube, anodized
- piston: steel