Electric wire rope hoist the standard lifting height is 6,9,12,18,24, ... with frequency inverters.The prefered rail for the low-headroom hoist is H-shaped rail, and I-shaped is also avaliable ... . The recommended reeving of this kind of hoist is 2/1,4/2 or 4/1.The normal ... by request.The normal rail gauge of the double-girder hoist is 1200,1400,1600,1800,2000,2500 and 3000 in ...