Relay Knockers
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Relay Knocker is a kind of Knockers that prevents adhesion and a blockade of a bulk material by the impact force Moreover, it can be used only by air supply and excels in safety and economical efficiency. It is effective in a bulk material with the characteristic which will adhere to if a vibration is given.
Work Principle
The compressed air which flowed in into the knocker is first supplied to a valve chamber, depresses a valve, and is stored in an accumulator. If a three way valve is operated and the air in a valve chamber is exhausted, the compressed air in an accumulator will move a mushuroom valve upwards. If a mushroom valve moves, the compressed air in an accumulator will strike a push-down piston.