ZJ70D drilling rig: 1)Drilling depth,7000m, 2)Hook load, 4500kN, 3)Drawwork ... ,2000kw, 4)Auxiliary brake:E.T. N brake ZJ70/4500D rig is drived with 4 sets of CAT3512 diesel generating sets ... )27 1/2 (698.5)37 1/2 (952.5)Drill Floor Height ft(m)11.5(3.5), 15(4 ... type mast112(34)138 (42)141 (43)148 (45) drilling rig