The rotary scrubber system is a revolutionary innovation to transform your power trowel into a powerful scrubbing machine. They are ideal for removing coatings, cleaning concrete surfaces and preparing precast tables. The rotary scrubber mount is a designed to fit most 36’’ and 46’’ walk-behind and ride-on trowel machines. The mount features an offset bearing which enables the brush to spin with the trowel machines arm while revolving the opposite way on its own axis. This creates the unique planetary scrubbing action that makes these scrubbers so effective.