nov cooperation partners competitive price 90days delivery drilling rig,drill rig , ... requirement for TDS installation. Rig ModelZJ20DBSZJ30DBSZJ40DBSZJ50DBSZJ70DBSNominal drilling depth, 127mm(5)DP, m 20003000400050007000Max. hook load, kN(t)1350 ... swing upDrillfloor height3.8 or 4.55 or 5.57.5910.5Clearance height under rotary beam, m ... 40,50,70,90DBS,drill rig,factory price,09new style,tech from USA