The IM 300 Hydraulic Jacking Plant is indispensable to the work in marble, granite and stone quarries and eliminates all the problems relative to the lifting and jacking of large masses. The plant is produced in four versions are extremely compact and can be easily versions are extremely compact and can be easily moved. The IM 300 has an uotput of 300 Tons with two 120 mm. and 220 mm. stroke jacks; it is composed of a pump unit delivbering a 700 bar pressure, and one or more hydraulic jacks with varying strokes.