Brinkmann BFS250-KBT5-N Immersion Screw Spindle Pump

Brinkmann BFS250-KBT5-N Immersion Screw Spindle Pump is a high-performance, immersion-type hydraulic pump designed for submerged service in coolant and lubricating fluids. This 4.6 hp unit runs on 230/460 V AC and delivers 47.3 L/min at up to 30 bar of discharge pressure, with a 3,520 RPM nominal speed. Built around Brinkmann's screw-spindle technology, the BFS250-KBT5-N uses wear-resistant SIC bushings and a labyrinth seal with a coated driving male spindle and outer female spindles to help extend service life in demanding machine-tool coolant circuits. The immersion design enables direct installation into a reservoir, reducing suction piping and priming concerns while maintaining reliable flow and pressure for filtration loops or CNC coolant systems. Typical applications include circulating filtered lubricants and water-soluble coolants in industrial machining, grinding, and tool-change environments where stable high-pressure pumping is required.