Main technical parameter 

Drilling diameter(mm)	400.600	800	Slewing speed(r/min)		0-1.3
Drilling depth(m)	18	16	Weight	Working state(t)	24.5
Power of motor of drilling head(KW)	37*2	37*2		Dragging state(t)	18
The maximum torsion(KN*m)	30.716	30.716	(m*m*m) Outer dimensions length*width*height	Working state(t)	8.5*4.6*22.5
Walking step(m)	1.1	1.1		Dragging state(t)	13.3*3*3.6