GATE OPENERS - VARIOUS MODELS MODEL M30 FEATURES: UNIT WEIGHT 40# 3000 FT. LB OF TORQUE REMOVABLE SPUD BAR INCLUDED SQUARE DRIVE ADAPTS TO DIFFERENT RAILCAR GATES SINGLE DIRECTION ROTATION MODEL 40 FEATURES: UNIT WEIGHT 120# 1500 FT LB OF TORQUE SQUARE DRIVE ADAPTS TO DIFFERENT RAILCAR GATES ELECTRIC OPENER FEATURES: UNIT WEIGHT 300# 1400 FT LB OF TORQUE SQUARE DRIVE ADAPTS TO DIFFERENT RAILCAR GATES AIR OPENER FEATURES: UNIT WEIGHT 77# 70 CFM @ 80-125 PSI TO PRODUCE 1750 FT. LB. OF TORQUE SQUARE DRIVE ADAPTS TO DIFFERENT RAILCAR GATES MODEL M30 MODEL 40 ELECTRIC OPENER AIR OPENER