Expertly balanced for ideal pad-to-floor pressure and sustained RPMs. You get total pad-to-floor contact, which means greater efficiency, speed and overall cost-savings. Provides excellence in design, operator comfort, and unsurpassed burnishing performance. Specially patented design combined with precision balanced weight distribution which eliminates the need for a compensating center or front mount caster. Self-adjusting pad driver. One piece rotationally molded housing designed to absorb the torque and vibration normally felt when operating high speed. 1.5 hp motor. Specification Cleaning Path - 20 in. Housing Construction - High Density Polyethylene Motor Height - 22 in. Brush Design / Type - Rotary Disc Disc RPM - 1600 Vac Motor - 1.5 hp Power - PM DC Rectified Motor Rotary Diameter - 20 Wheel Type - 4 Non-marking / Self-lubricating Handle Design - All-Metal, Positive lock Disc Pressure - 15 lbs.