The isp 640 is a pneumatic expansion bag system, to move blocks and benches after cutting with diamond wire. the bags are made of special rubber, dust and dirt proof. Flexible hoses connect the bags to the pneumatic control unit, equipped with a pressure regulator to expand the bag according to the required push for a proper opening of the block. Four bags can be connected to the control unit.
Hydraulic jacking plant, extremely compact and easy to move, used for pushing and overturning large rock masses and benches. The pushing capacity is 300 tons with two 150 mm stroke jacks. It is basically composed of a hydraulic pumping unit giving 700 bar pressure and one or more hydraulic jacks with different stroke and capacity.
The hydro - BaG 645 system is composed of an electric high pressure water pump and uses "disposable" metal bags which are only 2 mm thick. This makes it easy to insert them into the cut space made by the diamond wire. Hydro-bag is very strong and reliable. Two bags can work at same time, total push 600 ton.