... type of drilling rig from 2000m-9000m, different configurations and styles, including Digital control VF rig,Mechanical cold weather rig, Electromechanical Rig ,DC rig,mechanical rig ,trailer drilling rig ... with you face to face! Rig ModelZJ20DBSZJ30DBSZJ40DBSZJ50DBSZJ70DBSNominal drilling depth, 127mm(5)DP, m20003000400050007000Max. hook load, ... .8 or 4.55 or 5.57.5910.5Clearance height under rotary ...