Continuously Rotating Smooth-faced rolls are designed for use where little or no nonmagnetic material is contaminating the coolant. Coolant is gravity fed under the magnetic roll. The roll's powerful permanent-magnetic field reaches out and captures ferrous contamination in the fluid.
Since the roll surface is revolving against the current flow, large and small ferrous particles clinging tightly to its surface are carried upward out of the liquid. Coolant fluid drains back down into the hopper as ferrous particles are removed by the scraper blade.
Chips, grindings and other contaminats are scraped off the drum and deposited on the inclined scraper blades. That “swarf” builds up on the scraper blades and slowly moves to the discharge lip, which slopes down to a waiting receptacle.