Ultra-clean batch sifter meets pharma standards
A new batch sifter from UK-based Kason Corporation Europe claims to meet the most stringent food, dairy and pharmaceutical standards.
The dust-tight sifter has a stainless steel housing, motor and stand, tri-clover inlet and outlet flanges, vertical quick-disconnect clamps and continuously ground and polished welds.
It features a gap-free flange arrangement where the screen support ring interlocks with the upper and lower frames of the screener. The design allows the wire mesh of the screen to fully extend to the interior walls of the frame, eliminating the gap between the screen ring and frame wall of conventional screeners where material would otherwise collect.
The unit collects oversize particles down to 400 mesh from dry bulk powders or solids-laden slurries, and can be disassembled with no tools for rapid cleaning.
Screens are mounted to support rings using pharmaceutical-grade epoxy and sealed using pharmaceutical-grade gasket material, and can be provided with a mesh-tolerance certificate. The wire mesh screening material is offered in 304, 316 and “magnetic” 400-series stainless steel that, if broken, can be captured by a downstream magnet.
The sifters are offered in diameters of 450, 610 and 750 mm, and can be equipped with either single or twin imbalanced-weight gyratory motors.
The gyratory motor imparts multi-plane inertial vibration to the spring-mounted screening deck. On-size particles pass rapidly through the screen in a vertical discharge path at higher rates than with circular screeners having centrally mounted gyratory motors and horizontal discharge paths. Oversize material can be removed manually or with a vacuum.