CROSSJET Technology
Non-contact web cleaning with efficient high-speed air flow
Key Facts
High-speed air nozzle with special nozzle geometry
Excellent cleaning results at high web speeds and for small particle sizes
No compressed air required Extremely powerful web cleaning technology
Our CROSSJET technology provides a highly efficient solution for effective web cleaning. It is specially designed to reliably remove dust and dirt particles from rapidly moving material webs and to ensure cleanliness in the production environment.
A laminar boundary layer forms above the surface of fast moving webs, which grows with increasing speed. This layer includes both adhering and loose particles. The CROSSJET technology breaks through this boundary layer by means of an airstream that can reach the speed of sound. Thanks to a specially developed nozzle geometry, this high-speed airstream is able to efficiently loosen and remove even very small and micro particles.
A homogeneous output airstream ensures that the loosened contaminants are effectively captured and fed into the filter unit and suction system. The CROSSJET technology works contactless and requires no additional compressed air input, making its application particularly flexible and efficient.
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Material to be cleaned
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Ionisation
Electrostatic binding forces between material and particles are actively neutralised with focused positive and negative ions. These ions are attracted to the oppositely charged areas of the material surface respectively.
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High-speed airstream
Fast running material webs often create a layer of air above the surface, the so-called laminar boundary layer. Its thickness grows with increasing speed of the web, enclosing particles that adhere or lie on the surface. In order to remove these trapped particles effectively, the laminar boundary layer must be selectively penetrated.
An aerodynamically optimised high-speed nozzle generates a flat air jet that reaches air speeds of up to 300 m/s directly at the surface of the material web. The compressed air required for this is provided by a side channel compressor.
The airstream acts tangentially against the motion direction of the web, penetrates the entrained air layer and causes a targeted stall. As a result, the particles lose their hold in the boundary layer and are reliably carried away with the airstream.
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Suction channel
The suction channel integrated in the CROSSJET captures the dust-laden output air reliably and safely and feeds it into the ESUC suction and supply unit.
Note:
An idler pulley with a diameter of 180 mm is required.
