gmsminerepaircom G M S M i n e R e p a i r M a i n t e n a n c e F A B R I C A T I ON D I S T R I BU T I ON G R O U N D C ON T R OL 3013348186 43 50T RAM Jack Prop 50T RAM Screw Jack Prop Reuseable Heavy duty 50T capacity Quick installation One person can install Material handling efciency 12 in adjustability Carry handles Change top and bottom plates to adapt to surface control conditions Underground Installation NIOSH Failura Analysis