1. Power can be equipped by electrical motor or diesel engine, as per your project needs; 2. Hoist adopts Frictional clutch mechanism, using powder metallurgy friction plate,with good performance and long service life; With rapid and convenient hydraulic movable base, reliable hydraulic position locking, greatly improve the working efficiency before drilled hole, such as adding and taking off the drill rods ; 3. Hydraulic part: piston rod adopts stern sealing ring(sealing ring for shaft),hydro-cylinder piston adopts Glyd ring(sealing ring for hole), up to international advanced level, with good sealing performance and durability; 4. Easy to be disassembled, installed and operation. 5. With large rotary torque which are better than the other same level drilling machines.