It is an efficient tool for handling wood . capacity and type designed are according to our customers required. It has been widely used in ports, steel plants, ships , and is used together with tower cranes, ship cranes, ship unloaders, traveling cranes and other type of cranes. It has a Electro-Hydraulic system that works with electricity. Its motor force is inceased related to diving force into the bulk material. It is used by a control panel. The mechanical structure for opening & closing is succinct and inventive. No maintenance required except greasing. It is easy to use and can work under any circumstances in order.