NSS Galaxy Floor Machine The NSS Galaxy is a 20" versatile, economical floor machine, precision balanced for easy operation and maneuverability. This Galaxy saves time and money by effectively doing the job of two rotary scrubbers—a standard 175 RPM floor machine. Motor: Hp - 1.5 HP Size - 66 Frame Voltage - 110-120 V Size: 20 in. Pad Speed - 175 RPM Weight - 97 lbs. Productivity: Polish - 2,381 sq ft per hour Scrub - 2,222 sq ft per hour Shampoo - 1,033 sq ft per hour Spray Buff - 2,000 sq ft per hour