Sunnen’s new SVF Series Grit Guard® coolant filter is a build-to-suit solution with progressively higher levels of filtration and chilling to meet process requirements in abrasive machining. Base Grit Guard models are available in 55- and 110-gallon capacities and are equipped with twin and quad Sunnen PF filter cartridges, with a total filtration capacity of 8,800 in2 and 17,600 in2 respectively. Modular design allows adding a deep bed paper filter (110-gallon only), magnetic separator, and cooling to suit the application. A heavy-duty two stage centrifugal pump provides a nominal flow rate of 2.5 gpm. A large easy-to-access settlement tank increases efficiency and filter element life. Sunnen PF filter cartridges are available for 11-, 18-, and 60-micron chips in both oil and oil/waterbase compatible configurations. The magnetic separator option is capable of handling chips up to 100-micron size, and the Grit Guard filter is ideal for most grinding, lapping, and honing operations.
The U.S.-made Grit Guard filter is robustly built with high-reliability components and convenience features, such as fork truck pockets, level gauge, filter-pressure gauge, spare filter storage compartment, and overpressure protection. The high capacity swarf container is equipped with a hoist eye, and a drain tray allows used filters to be drained back into the tank before disposal.
Grit Guard filters have a NFPA-79 compliant electrical system and a robust Brinkman progressive-stage centrifugal pump. Options include an integrated PRAB magnetic separator, deep bed paper filter (110-gallon only), and Turmoil chiller. A unit status light that alerts operators to reduced flow conditions is standard. Grit Guard filters come with full documentation, and Sunnen stocks spare parts for rapid delivery.
