Supplier sign in
Home
STAY INFORMED
Subscribe to our monthly newsletter.
Your email address will never be disclosed to any third party.
Read our privacy notice.

   

Product news
01.04.2025  |  358x
Share this item

Noise protection for pneumatic knockers

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 to the contours of the silo.
The hood has another positive effect: it protects the knocker from corrosion in harsh conditions such as when aggressive vapours and dust are present. The knocker remains easily accessible for maintenance even under the hood: only one screw has to be loosened to remove the hood.

Sound insulation plate

If the full impact force of the pneumatic knocker is required, a sound insulation plate can be used. It has no damping effect on the vibrations generated by the knocker but dampens the sound radiation from the container close to the knocker. The sound insulation plates are available in different sizes and are self-adhesively attached directly to the silo wall.
The singold sound insulation plates KSP are cut out so that they fit over the sound insulation hood. In this way, a sound insulation plate can be used both as a stand-alone measure and in combination with the sound insulation hood.

Sound damping through rubber-elastic materials

If the impact is dampened by rubber-elastic materials, the noise generated can be reduced. However, this also reduces the impact of the knocker. The pneumatic knocker from singold has a very high impact force. The full impact force is not always required to achieve the desired effect. In this case, a V1 variant of the pneumatic knocker can also be used. In these models, the striker is made of Vulkollan (PU). In combination with a Vulkollan sound insulation disc, which is clamped between the welding plate and the knocker, the noise development can be significantly reduced.

Company information

More items

Pneumatic Knocker by singold Problems with flow? Bridging, funnel flow, stagnant zones can be counteracted with a pneumatic knocker, when vibration is not enough.
Pneumatic Knocker by singold
Problems with flow? Bridging, funnel flow, stagnant zones can be counteracted with a pneumatic knocker, when vibration is not enough. The pneumatic knocker is used for bulk goods with material flow problems for instance bridging, funnel flow and residue formations, when high speed shakers and vibrators with soft sine-shaped oscillations are no longer effective. The effect of the knocker is comparable to that of the famous “silo hammer”, but without distorted silo spouts additionally impeding the material flow. 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 the weight and the strength of the silo walls and thus reduces the effect of the knocker. The Pneumatic Knocker produces an ideal elastic shock that is specified as the impact energy E = m/2 × v2 [kgm/s2 = Nm] and as impulse J = m × v [kgm/s = Ns]. There is no impact force or out-of-balance
03.02.2025  |  373x  |  Product description  |   | 
Flap shutter from Singold: Lightning fast, enduring, low maintenance Singold introduces a flap shutter, a further development of the pendulum flap. It can be used for the complete unloading of containers and bulk material of all kinds.
Flap shutter from Singold: Lightning fast, enduring, low maintenance
Singold introduces a flap shutter, a further development of the pendulum flap. It can be used for the complete unloading of containers and bulk material of all kinds. The flap shutter from singold gerätetechnik gmbh is an advanced version of the conventional pendulum flap. The flap shutter is used for the complete unloading of containers and bulk material of all kinds. Examples include hopper scales, primary and secondary vessels in mixing plants, wagons, reservoirs under filters and separators and cone worm mixers. Sophisticated mechanics The flap shutter from singold gerätetechnik gmbh was developed with the highest level of engineering. Thanks to its ingenious mechanics, the flap shutter first moves vertically downwards and then quickly swings completely to the side out of the product flow. This minimizes wear, especially with abrasive materials. The bulk material is neither damaged nor modified, nor is there wear on the flap shutter. This and its lubrication-free slide bearings make the flap shutter from singold an extremely enduring and low-maintenance device. Even with manually operated designs, large nominal widths with
02.12.2024  |  756x  |  Product news  | 
singold gerätetechnik introduces innovative online configurator Find the right knocker simply, quickly and efficiently. This onlinetool guides the customer step by step through all the relevant query parameters.
singold gerätetechnik introduces innovative online configurator
Find the right knocker simply, quickly and efficiently. This onlinetool guides the customer step by step through all the relevant query parameters. Always focusing on the customer: At singold gerätetechnik, locating and requesting the ideal pneumatic knocker for any purpose has never been simpler. An innovative online configurator has been developed for this purpose. This tool guides the customer step by step through all the relevant query parameters. Find the right knocker simply, quickly and efficiently Which knocker do I need for a particular sheet thickness? How many? Which is the right knocker for high ambient temperatures? And which design is suitable for applications in the pharmaceutical and food industries? In the singold online configurator, the customer is shown the appropriate product preselection with just a few clicks. Complicated tables for the time-consuming search for the optimum solution are now a thing of the past. And if you already know which model you need, you can use the configurator to send a request at lightning speed. Configure your knocker with just a few clicks What type of
04.11.2024  |  797x  |  Product news  | 
singold receives ISO 9001:2015 certification
singold receives ISO 9001:2015 certification
The Deutsche Qualitätsmanagement Akademie GmbH has recently certified singold gerätetechnik GmbH that its quality management complies with the requirements of DIN EN ISO 9001:2015. Requirements for the areas of application development, design, assembly, and sales of devices for material flow optimisation for bulk materials were tested and evaluated. ”We are very pleased that our successful efforts to achieve the highest quality at all business levels have now been confirmed by an external body through the ISO certification,” says Managing Director Oliver Lüer. ”For us, this is an incentive to optimise all processes from development to sales even further.” DIN EN ISO 9001:2015 is the national and international standard for quality management in companies. Companies with this certificate are recognised for their constant efforts to achieve high-quality products and services. Customers of ISO-certified companies can rely on the fact that company processes
09.08.2023  |  515x  |  Press release  | 
PORTALS
Recycling-Portal Schuettgut-Portal BulkSolids-Portal
SIGN UP FOR OUR NEWSLETTER
Newsletter archive
Service and contact
ContactDisclaimerPrivacyAdvertising
FOLLOW US
Linked