Unrivalled in terms of impact energy, efficiency and cost-effectiveness –– clearly superior to conventional impact cylinders.
The Pneumatic Distance Knocker QJ is particularly suitable for knocking on changing containers or slowly rotating drums, as well as for hot walls. The piston rod is designed to bridge a certain distance to a container or a rotating drum.
The Distance Knocker QJ is universally applicable wherever successful cleaning can be achieved by a hammer blow, however, directly mounting a conventional knocker is impossible due to movement or temperature. The key benefits:
The world’s most powerful distance knocker!
Maximum impact effect
Reliably removes product residues and caking in rotating drums
Ideal for rotary kilns, drum drying systems and changing containers
Generally suitable for hot surfaces
Other successful applications include:
In filter cup knocking stations
As a stone remover in paving stone production
In centrifuge drum cleaning stations
As a knocking device for emptying waste bins
Versions & Selection Guide
Our Distance Knockers are available in the following versions. Select the version that is suitable for your situation. For specialised applications, please use our questionnaire.
Parameters
Important parameters for the selection of the right knocker:
Thickness of the container or drum
Material of the container or drum
Diameter of the container or drum
Operating temperature
Mounting & Operation
With rotating drums, a knocker is fitted vertically from above and strikes at a slight angle against the direction of rotation on a traverse.
The components shown in the picture are required for the installation and operation of the Pneumatic Distance Knocker:
Attachment: The Distance Knocker QJ has to be securely installed to a greater mass (e.g. machine-construction, U-steel filled with concrete) to cover the recoil.
Electrical control for solenoid valve to desired control voltage. An existing PLC control can also be used.
Pneumatic connectors and cables
Maintenance unit for pressure reduction to 3.5 bar operating pressure, drainage and lubrication of the knocker is recommended.
Videos
Distance Knocker (QJ 80) in action: impact against a 7.0 kg round bar.Distance Knocker (QJ 80) in action: impact against an empty tin can.
Distance Knocker QJ100, mounted on a solid frame on a rotary kiln in France. Unrivalled in terms of impact energy, efficiency and cost-effectiveness – clearly superior to conventional impact cylinders.Largest and most powerful distance knocker in the world QJ125, mountes on the cooling pipe of an Elino rotary kiln. The Distance Knocker is absolutely essential to the production process.
Examples of applications for a knock-off station
Distance Knocker QJ 80 in a mobile knocking station.Various elements can be mountes on the piston rod.The filter cup clamped in the clamping device for knocking.
Questionnaire
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