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kerry brand KT20 open-air DTH drilling rig is kerry Group after years of development and production on the basis of DTH drill rig,according to the need of large open-pit mine,elaborate design new drilling equipment.The drill rig walking, propulsion, rotate and angle adjustment adopts hydraulic drive,Power Flow Strong;With high wind pressure screw head and high wind pressure pneumatic impactor,High drilling efficiency;Equipped with hydraulic dry dust collector to collect dust,reduce environmental pollution ;And is equipped with hydraulic manipulator library handling down the drill pipe and drill pipe,Floating joint protection drill pipe thread,A person can be handling down the drill pipe;Air conditioning cab provide comfortable working environment and automatic control card valve to reduce the rate of drill.This drilling righas good integrity, high degree of automation, good effect of drilling, environmental protection and energy saving, convenient operation, flexible, road safety, etc.

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introduction
Parameter

1. Disc type automatic unloading rod system, automatic unloading rod drilling is 36 meters deep.

2. Carriage pendulum angle use the luffing mechanism, always swinging Angle 130 °(left 33 ° right 97 ° ), without being in fulcrum free horizontal hole and vertical hole. The lowest level hole height 550 mm, the highest 550 mm.

3. Adopt the caterpillar electronic engine, powerful, reliable in performance.

4. Adopt a single engine at both ends of the output of decorate, compact structure, easy maintenance.

5. High wind pressure large displacement air compression system (22 m3 / min, 25 bar) to ensure the percussive drilling rapidly.

6. Walking mechanism of automatic leveling function let jumbo more adapt to mine rugged mountain path.

7. Double hand soldering the entire guide drilling tools, to prevent the occurrence of deviation when drilling (Guide the impactor when opening, guide the drill pipe when drilling).

8. Adopt imported hydraulic parts and electrical appliances

KT20 One-piece open-air drilling rig technical parameters:

Rock hardness	f=6-20
Drilling diameter（mm）	135-190
Economic drill depth (Automatic extension rod depth)(m)	36
Travel speed（Km/h）	3.0
Gradeability	25°
Ground clearance（mm）	430
Machine Power(kW)	287
Diesel energy	Carter C11
Screw capacity(m3/min)	22
Screw working Pressure (bar)	25（maximum）
Dimension (mm)	11500×2716×3200
Weight(Kg)	23000
Rotating Speed(r/min)	0-118
Rotating torque（N.m）	4100
Maximum lifting power(N)	65000
Carriage elevation angle	125°
Carriage swing angle	right 97 °left 33°
Carriage leveling swing angle	right 42°left 15°
Drill arm dump angle angle	up 42°down 20°
Frame leveling angle	up 10°down 10°
Push length(mm)	4500
Compensation length(mm)	1200
Hammer	HD55A/HD65A
Dill rod	φ102×4000 mm
Catching dust	Dry/wet (optional)
Jaw way	Automatic discharge rod
Automatic protection card way	electro-hydraulic control card
Drill rod lubricating	Automatic oil lubrication
Drill rod thread protection	Equipped with floating joint protection drill rod thread
	Real-time display Angle of drilling and drilling depth

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