... , 2,the derrick,self-traction device are advanced 3,auxiliary transmission gear box GENERALIn order to meet applications ... and reverse circulation drilling, we have designed XY-4-3 spindle type core drilling rig. It is developed ... layer, m/s)0.82, 1.53, 2.16, 3.13Wire rope dia. (mm)15.5Drum capacity (four layer, ... power losses. XY43 1200meter Core Drilling Rig,Water Well & Geology exploration capable