Mechanical loading and unloading machines for transloading of bulk material on conveying devices and transport devices; industrial machines, namely, apron feeders, heavy-duty apron feeders, deep drawn pan conveyors, bucket apron conveyors, pivoting pan conveyors, drag chain conveyors, mobile link conveyors, flat plate conveyors with plate, short plate conveyors, belt bucket elevators, central chain bucket elevators, double bucket elevators, bucket elevators with gravity discharge, pendulum bu...