Air Consumption at Max HP (scfm): 33 Air Inlet: 1/4" NPT Air Pressure (psi): 90 Drive Size (in): 1/2 Drive Type: Round Keyed Exhaust Location: Rear Finish: Black Oxide and Anodize Gear Ratio: 37:1 Gear Reduction: Double Gear Train: Planetary Housing Material: Steel Max Free Speed (rpm): 495 Max Pressure (bar): 6.2 Max Torque (ft-lb): 21 Max Torque (in-lb): 253 Max Torque (nm): 28.6 Motor: Rotary Vane Motor: In line Mounting Type: Flanged Mounting Number of Mounting Holes: 2 Power Source: Air Powered Product Weight (lb): 3.5 Rated Power (hp): 0.64 Rated Power (kW): 0.48 Reversible: Reversible Speed at Max Power (rpm): 245 Standards/Certifications: ATEX Starting Torque (ft-lb): 16 Starting Torque (nm): 21.4 Warranty: 1-year