... , like gold, copper, zinc ore etc. MLR-120 railed Mucking Loader is designed for rock mucking in tunnel size of 2 ... Clearancemm25017Boom Rotation Angle ±37° (Vertical Centerline)18Hydraulic Cylinder VolumeL21019Rotary Hydraulic Mechanism Rotary Cylinder20Hydraulic Pump Double-gear Pump21Hydraulic Controlling Manually Operated Valve22Working ... Sizemm7,990 x 2,050 x 2,790 gold mining loader