HQD70 Down the hole drill rig

HQD70 Down the hole drill rig 1>Rock hardness:f=6~20 2>Bore Dia.(mm):68~80 3>Motor power:3KW 4>G.W.(kg):175

 Down the hole rig HQD70:

 Features:

1) Simple structure; easy operation and reasonable price.

2) Low center of gravity, good dismount ability and easy for moving and transportation. Specially suits working on concave-convex rugged topography or primitive landform.

3) Low air consumption of hammers. Needed air compressor is with low capacity, which is more economic and energy saving.

4) The rotation reduction gear torque is big, which makes the drill reliable when works under working condition of strong vibration and high load.

5) Electric system has functions of over-load protection and lack-of-phase protection, which makes the drill work stable and reliable.

6) Advancing system matched with pressure reducing valve, which can adjust the advancing power according to different rock rigidity to gain the optimal rock drill effect.

HQD70 Down the hole drill rig

Model	HQD70
Rock rigidity	F=6~20
Dia. of hole	68~80mm
Optium drilling depth	15m
Once advancing length	1000mm
Speed of rotator (non-load)	90r/min
Air consumption	3.5~5m3/min
Working pressure	0.5~0.8MPa
Dia. of cylinder	90mm
Motor power	3KW
Max. lifting power	4200N
Max.	3500N
Weight	175Kg

HQD70 Down the hole drill rig