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Gluing instead of welding


Vibrators and impactors are mounted on U-profiles, mounting brackets or metal plates (weld-on plates) for loosening, separating, compacting and sieving powders, granulates or pellets. In this way, containers and pipes are emptied and their walls cleaned, product blockages are dissolved and bulk material bridges are destroyed or, at best, avoided from the outset.

To guarantee these effects, suitable fastening elements must already be taken into account during system planning and subsequent construction. However, problems always arise in the not infrequent cases where a need for vibration technology subsequently arises (new bulk materials, changed recipes, etc.) and no suitable fastening options have been provided on high-quality systems (e.g. made of stainless steel). Welding, on the other hand, is not an optimal solution in retrospect, because on the one hand the surface quality can deteriorate, especially with thin-walled containers, hoppers or pipes, and there is also the risk of fine stress cracks.

The advantages of adhesive bonding have long been recognised in mechanical engineering design planning and are also used in a variety of ways, for example in car production: up to 15 litres of adhesive are used in cars!

All the more reason for the engineers at NetterVibration to get to work. After extensive research and extensive test studies, they have developed a technology that has been on the market for many years and has since become indispensable in the attachment of vibrators and knockers: the manufacturer's adhesive bracket, NKK for short, makes subsequent welding superfluous, because whether on the silo, pipe or hopper - knockers and vibrators are attached to the target structure simply, permanently and gently using the NKK.

Experience with the glueing process

The advantages of the glueing process are obvious and the practical experience of recent years has already convinced users in various industries. The adhesive consoles enable efficient energy transfer between the vibrator or knocker and the container, silo or hopper concerned.

Installation of the NKK is simple and comparatively quick, as the bracket can be attached easily and without specialised personnel using elastic adhesive and then acts as a carrier medium for selected knockers or vibrators.

Nevertheless, this fastening method is safe, tried and tested and can even be installed during ongoing operations without having to interrupt production processes for any length of time, which minimises the downtimes that are normally required for welding or bolting. The container in question does not need to be emptied before the bracket is fitted, and there is no risk of the material in the container being affected by the heat generated during welding.

The design of the adhesive console ensures even and efficient energy transfer. No structural changes occur and therefore the material of the bonded structure is not affected.

The elastic adhesive layer guarantees a permanent connection without cracks or breaks, making it particularly suitable for thin-walled constructions, materials with low weldability and special plastics. In addition to standard brackets, NetterVibration also offers customised types that are individually designed and manufactured.

Full article published in CITplus 03/2024.

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