Pneumatic shake devices
Spring knocker
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Pneumatic knocker could be used for bulk material release if the bulk material was adhesed on 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. The principe is simple: by presurize of air chamber the spring is pre-tensioned and by air exhausting the spring causes the impact. This system should be used, when there is no sufficient flow rate in the line for standard pneumatic knockers without springs. |
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 | OKP32 | OKP50 | OKP80 |
Piston diameter [mm] | 32 | 50 | 80 |
Stroke [mm] | 25 | 35 | 50 |
Piston weight [kg] | 0,16 | 0,75 | 2,60 |
Impulse [Ns] | 1,5 | 7 | 20 |
Kinetic energy [Nm] | 6,5 | 28 | 75 |
Instalation and operation notes:
We rocommend to fix fixing screws with Loctite 242E or similar adhesive.
There is necessary to check right tightening of fixing screws regurarly to prevent their releasing.
The quick exhaust valve and connections of both chambers are included in delivery, compressed air should be connected to the quick exhaust valve.
Construction / materials
- flange: zinc plated steel
- end cap: aluminium casting
- body: drawn dural tube, hard anodized
- piston: steel