single girder grab overhead crane is mainly used to load and unload loose materials indoor: ore, limestone, slag, pulverized coal, coke and so on, but can not launching operation.  It is a light working level crane, working level only can up to A4, in other words, single girder overhead crane only can work not more than 5 hours/day. So, it also can not be used in big and busy working environment.

Gantry grab crane's lifting capacity covers 2-16T, on the basis of double girder gantry crane or single girder gantry crane, combined with mechanical grab or hydraulic grab, gantry grab crane is used to grab all kinds of loose material outdoor or indoor.

double girder overhead grab crane organized by box-weld main girder, grab trolley, cabin, long travel mechanism and control system. The load handling device is grab/ bucket which is able to grab bulk materials. The grab has open-close mechanism and lifting mechanism, grab is hung on those two mechanisms by four steel wire rope.

Grab and Electromagnet two purpose overhead crane is designed for special usage, one electromagnet and one grab, depending on different requirement and can reduce the cost for the end user greatly.

Grab and hook two purpose double girder overhead crane is designed for special usage, one hook and one grab, depending on different requirement to use different spreader, not only can reduce the cost for the end user greatly, but also same operation time.