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HAVER & BOECKER, a leading manufacturer of high-precision wire cloth and screens and ARTECH Ultrasonic Systems AG, a subsidiary of Crest-Holding and specialist in ultrasound technology, are collaborating to provide custom-made ultrasonic screening systems with frequency variation.

HAVER-ARTECH complete screening systems are custom-made for existing screening machines. They are conceived and designed as “large or small screening systems” (LSS or SSS). They consist of the following components: Pre-tensioned screens, Generator, Ultrasonic converter, Feeding sound conductor, Screen sound conductor, Insulated HF cable, support elements if applicable.

Why ultrasonic screening?
• delivers efficient sifting of powders with split cuts of ≤ 300 µm
• improves throughput
• helps the breaking down of agglomerates
• reduces amount of excessive grain
• ensures long-term cleaning effect

How do ultrasonic screens work?

The generator converts electrical energy into high-frequency energy which is then converted to mechanical energy by the converter. The sound waves cause the screen frame or sound conductor to oscillate at high-frequencies. These oscillations are transferred to the screening cloth where they are evenly distributed. The oscillations of the screening cloth reduce the frictional resistance between the grains and the screen. This reduces the tendency towards blockage, resulting in increased throughput.