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The greatest advantages of pneumatic knockers: particularly powerful, efficient and comparatively light Impact frequency knockers, interval knockers, shakers and vibrators: they are all used to make bulk materials flow better. Knocking on demand - this is best done with a pneumatic knocker. And no other knocker can produce such a high impact effect with the same size as the pneumatic singold knocker. What are the greatest advantages of pneumatic knockers? Have you ever walked through your plant and seen impact marks on cyclones, bins or silos? In all those cases where the flow of material was restarted with a hammer blow, a pneumatic knocker could have been used more efficiently and with less impact on the material. Unlike shakers, vibrators and even interval knockers, a pneumatic magnetic system knocker can knock on demand - whenever it is needed. This provides the following advantages: * For some products, constant knocking tends to condense the material flow rather than promote it. A single, targeted blow is much more effective here than a vibrator. * Well-directed

When it is not possible to attach a pneumatic knocker directly to a silo, the pneumatic distance knocker from singold gerätetechnik gmbh offers a solution. It is not always possible to attach a pneumatic knocker directly to a silo, for instance, if the container becomes hot or if it moves. In such cases, the pneumatic distance knocker from singold gerätetechnik gmbh offers a solution. Company founder Erwin Lüer developed it using state-of-the-art engineering. How the Distance-Knocker QJ works The basic concept is the same as that of the traditional pneumatic knocker: spontaneously released compressed air pressure accelerates the impact piston, which is designed as a permanent magnet, after it is released. In contrast to the conventional knocker, the distance knocker’s piston rod strikes a moving impulse part, which is strongly accelerated according to the impulse-momentum theorem and ultimately transfers the energy to the container to be knocked off. This process takes place at such a high speed that the human eye can hardly perceive it. Thanks to the additional impulse part, the Distance-Knocker QJ can be mounted

Flow in a silo can be promoted with a hammer. But the use of pneumatic knockers is a much better way. This gives maximum impact, without damage. APPLICATION The Pneumatic Knocker is used for bulk goods with flow problems, such as bridging, funnel flow and stagnant zones, when high speed shakers and vibrators with soft sine-shaped oscillations are no longer effective. Better than a hammer The effect of the knocker is comparable to the infamous "silo hammer", but without the damage a hammer can do. Dents by hammers wil complicate the material flow even more. And cracks and ruptures can also occur. The effectiveness of the knocker is evaluated according to the following rule: If the product can be knocked off or made to flow with a hand hammer, the Pneumatic Knocker is also effective. Mounting of the knocker The knocker is normally controlled by an electrical control system with a solenoid valve. Within the area where the knocking takes place there should be enough space for the impact to expand in all directions. Reinforcements of the silo walls and additional ribs should be avoided, as this increases

singold gerätetechnik gmbh produces and sells the world’s most powerful pneumatic knocker. While competitor models can at best cover a wall thickness of up to 12 mm, the K160 can knock walls with a thickness of up to 25 mm. This makes it suitable for massive, heavy-duty containers. For example, it is used in the mining industry for discharge chutes, in the building materials industry for gravel bunker outlets, in the chemical industry for mixing plants, in the lime industry for silos with a capacity of over 200 tonnes and in the fertiliser industry. Supernatural Strength The powerful model has an impact energy of 423 newton metres. This corresponds to the energy generated when a weight of 42.3 kg is dropped from a height of 1 metre. This high impact energy cannot be achieved with human forces, even if a 20 kg sledgehammer were used. The reason? The acceleration and, consequently, the final velocity of the impact weight in the knocker is far higher than the final velocity that a human being can generate. When the piston, which is designed as a magnet, is

an important contribution to the health of employees Noise in the workplace not only has serious health consequences, such as damage to the inner ear, headaches, dizziness and even concentration and sleep disorders, but it also affects productivity. In order to keep operational noise levels as low as possible, singold gerätetechnik offers a range of solutions, all of which have been carefully thought out down to the last detail. The pneumatic knocker from singold only knocks when required – this in itself is a contribution to noise protection. But by adding specialised accessories and using a special construction of the pneumatic knocker, sound emissions can be reduced even further. Sound insulation hood The sound insulation hood is put over the pneumatic knocker and, if present, the solenoid control valve, and screwed to the knocker. It is equipped with a rubber bushing for the compressed air hose and a silencer for the rinsing air. Towards the silo wall, a rubber edge protector reduces the sound. It adapts

singold has the ideal pneumatic knocker for every system: high temperatures, special hygiene requirements, very large silos, etc. Even Distance-Knockers when direct mounting is not possible. Just as the application scenarios for pneumatic knockers are diverse, so too are the requirements. Whether high temperatures, special hygiene requirements or very large silos, singold gerätetechnik gmbh offers a wide range of pneumatic knockers so you’ll have no problem finding one perfectly suited to your specific needs. Application temperature is crucial The most important factor in selecting the optimum knocker is the application temperature. For temperatures up to 60 °C, a standard version with a plastic piston can be used. For applications above 60 °C, the piston is made of aluminium. Cover and anchor plate, tube and striker are made of aluminium, steel or stainless steel, depending on the individual application situation. The pneumatic knocker can even be used with wall temperatures of over 140 °C. A T-shaped welding plate to increase the distance to the hot wall, a heat-dissipating plate and a heat insulation plate are available as accessories in this