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Easy maintenance of hydraulic pump aggregate:

Air motor drive hydraulic pump aggregate is installed outside the hydraulic oil tank, and oil pump and motor are flexibly connected and freely dismantled, so that the oil pump runs stably and is easy maintain.

Strong feed and rotation mechanisms:

Feed reducer adopts turbine. With worm drive, the feed force is large to achieve self-locking.

Rotation reducer adopts gear drive with low rotating speed and large torque and it is easy to maintain.

Centralized control of control mechanism:

The drilling rig is designed with advanced hydraulic system and gas path system and all actions are under centralized control for easy operation.

Operate hydraulically operated valve to perform drill boom lifting, swinging and drilling rig pitching, pivoting, moving forward (backward) and crawler leveling to guarantee multi-directional drilling and stability of drilling rig.

Operate pneumatic control valve to realize oil pump starting and drilling rig feed (lifting), swinging and impact to guarantee efficient performance of the drilling rig.

Safety and stability in travelling mechanism:

Due to low gravity and large ground clearance, it is easy to run across rugged roads.

With advanced automatic crawler leveling function, the drilling rig travels smoothly and steadily and it is subjected to significantly reduced impact from the ground to guarantee safe travelling. Driven by high power pneumatic motor, the drilling rig has strong climb capacity and large traction.

The brake gear is linked to walking control mechanism, so that the brake will work when the rig stops to guarantee stability and safety of the drilling rig during drilling operation and traveling on a slope.

It is convenient and flexible that walking control valve is usually set to braking state and it controls the movement of left and right crawlers respectively to realize movement forward and backward and steering.

Technical Parameters of KC140 All Pneumatic Surface DTH Drill Rig

Rock hardness	f=6~20	Drilling diameter(mm)	105~140
Economic drilling depth(m)	25	Pression d’air de travail (MPa)	1.0~1.5
Air consumption(m³/min)	≥18	Rotation speed(rpm)	0~67
Lifting force(KN)	13.6	Drill rod specification (mm)	76x3000/89x3000
Climbing capacity	30°	Ground clearance(mm)	254
Travel speed (Km/h)	2.5	Drill boom lift angle	-19°~+60°
Boom swing	±45°	Guide swing	-35°~+50°
Guide pitching	180°	Track leveling	±7°