Winnow™ ROTOR is an automatic self-cleaning filter with a stainless steel housing for a long service life. ROTOR incorporates Winnows’ proven vacuum screen cleaning technology. During a cleaning cycle, the vacuum head assembly is rotated by a low voltage electric motor and covers the entire screen surface area. the triple layer screen element is available with a range of filtration ratings between 25 and 810μm. Horizontal models incorporate an extra coarse mesh pre-screening stage.