Drill,Hole Drill,Water well Drilling Rig,Water Drilling Rig,Mining Drill Rig ,Down Hole Drill,Air Compressor,Component of drilling rig. (1) host machine: With large diameter screw rotor, host and diesel engine contact the high elastic coupling straightly, no speed growth gear, better reliability; the speed of the main engine is the same to the diesel engine (no more than 2400 r/min),;and so live longer. (2) Diesel engine: choosed "Dongfeng Cummins" and "Yuchai" brand diesel engine which are domestic famous brand ,have passed European level 2 emissions and ISO9001 standards , low oil consumption, superior after-sale service system covering the whole country, customers can be serviced rapidly and perfectly. (3) Good practical applicability:according to the size of the real situation, diesel engine accelerator can be changed by itself to save every drop of diesel oil.