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KT/ZT series integral type high wind pressure open-air crawler rig
KT20 integral type high wind pressure open-air crawler drilling rig

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.

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

Rotatingtorque(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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