drilling rig,land drilling rigs,drilling rig equipment Model:ZJ30L, ZJ40L, ZJ40L,ZJ70 ... gear box and cardan shaft.drilling rig,land drilling rigs,drilling rig equipment....Parameter Model, drilling rig ZJ30L ZJ40LZJ50LZJ70LNominal drilling depth, 127mm(5)DP, ... (mast)TypeAKKKHeight (m)41434545Max. load, kN(lbs)1700225031504500SubstructureTypeModule-mounted, or box on boxdrillfloor height, m 5/5.5 ...