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.

A singold distance impact knocker is a universal impact tool. Wherever a short, powerful impact is required, it can serve as an alternative to an impact cylinder.
Many applications traditionally carried out using impact cylinders can also be achieved with QJ distance knockers:
- Loosening jammed components
- Releasing workpieces from their positions
- Cyclic and impact movements
- Test and inspection equipment
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:

- Unrivalled in terms of impact energy, efficiency and cost-effectiveness
- Clearly superior to conventional impact cylinders
- 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










