Ultrasonic Sanitary Screener Resists Blending, Contamination

Oct. 3, 2013
The gap-free design can reduces the possibility of contamination due to bacteria growth.

Kason Corp. recently launched a new ultrasonic Vibroscreen separator with gap-free screen frames, quick-access vertical clamps and Kasonic ultrasonic anti-blinding system. The separator separates bulk foods, pharmaceuticals, chemicals and other products prone to screen blinding and contamination into three particle size fractions.

Constructed of stainless steel with continuous large-radius weld seams ground and polished to 240-grit, the screener complies with 3-A, BISSC and FDA sanitary standards as well as ATEX and CE electrical standards. The external, interlocking flange configuration of the screen frame fully envelops the support ring of the screen. This allows the screen’s wire mesh to extend to the interior walls of the frame. It also eliminates the gap between the screen ring and frame wall of conventional screeners where material would otherwise collect.

The gap-free design can reduces the possibility of contamination due to bacteria growth, and improves sanitizing efficiency, making it suitable for pharmaceutical, food and dairy applications, as well as other applications where cross-contamination is a concern. The Kasonic anti-blinding device allows sifting of powders as fine as 25 microns (500 mesh) at high rates with no screen blinding.

Single or multiple transducers (for large diameter machines) transmit ultrasonic frequencies to the screen surface in continuous or pulse mode, automatically adjusting power to maintain constant frequency as screen loads vary. Transducers operate with standard screens and are not fixed to the woven wire mesh, reducing re-screening costs significantly.