Duty Classification H4, Mount Type Push Trolley, Maximum Lifting Capacity 4,000 lb, Number of Speeds 1, Fixed Lift Speed 8 fpm, Minimum Lift Speed Not Applicable, Maximum Lift Speed Not Applicable, Trolley Speed Not Applicable, Maximum Lifting Length 15 ft, Motor Horsepower 1 hp, Operating Voltage 115V AC, Headroom 20 5/8 in