QZJ100ZZ  Air DTH  underground drill  is designed for longhole work, it is lingt and simple , with 5~7bar air pressor and 13 m³/min , the drill can finish 4~6 meters per hour ( f = 9~14) ,and the hole can be 60~70 meters depth. If  the air pressor raises to 10~12 bar and 15 m³/min , the drill  speed will be 7~10 meters per hour(f=9~14).
Suitable tunnel size:   W  ×  H  （ 2600× 2600） mm
Hole diameter:   76mm\   90mm\     100mm\     110mm\       120mm
Hole angle  :    any degree 
Air pressor:  10~12 bar    
Air consumption: 12~15 m³/min 
Weight :    totle 480 kg ,  separate Max 190 kg