Air Chain Hoist Mount Type Hook Mounted - No Trolley Maximum Lifting Capacity 500 lb Fixed Lift Speed 52 fpm Air Inlet Type NPT Controls Pull Cord For Minimum Beam Flange Width Not Applicable For Maximum Beam Flange Width Not Applicable Headroom 18 3/16 in Maximum Air Pressure 90 psi Maximum Lifting Length 20 ft Maximum Air Consumption 57 cfm Programmable Non-Programmable Air Inlet Gender Female Air Inlet Size 1/2 in Body Depth 13 1/2 in Body Length 13 1/2 in