Air filter precleaners help to remove dirt and debris in air before it gets to the air filter element, for longer filter life and fewer element changes. Outside air gets into the precleaner through its bottom air inlet, then it turns into the swirling flow by the fixed impeller. The swirling air flow drives the rotors to create a centrifugal force that throws debris out through the discharge port. Thus, cleaned air enters the air filter and engine.

• Construction machinery: excavator, loader, roller, bulldozer, grader, road paver, dumper, street sweeper, compactor, loader-digger, jack drill, rotary hammer drill, down-the-hole drill, milling machine, cold recycler, soil stabilizer, forklift, reach stacker, etc.
• Agricultural and forestry machinery: harvester, tractor, logging skidder, feller buncher, wood cutter, snowblower, etc.
• Other machinery: compressor, generator, crusher, separator, etc.