Tele-tower Model 1101 Adjustable Work Platform - Mobile,TELE-TOWER® ADJUSTABLE WORK PLATFORM MODEL 1101-22 1000 LBS,TELE-TOWER® ADJUSTABLE WORK PLATFORM MODEL 1101-96 1000 LBS,Planetary Gearbox Nema23 Ratio 10:1 L53mm Geared Speed,Nema 23 Stepper Motor L=76mm Gear Ratio 10:1 High Precision