KT20 Integrated Surface DTH Drilling Rig

Kaishan KT20 integrated surface DTH drilling rig is a new drilling device which is carefully designed for large open-pit mine based on our development and production of DTH drilling rigs for many years. The drilling rig is hydraulically driven to complete walking, propelling, rotation and angle adjustment with strong power; The drilling rig is equipped with high pressure screw compressor head and high pressure pneumatic hammer to generate high drilling efficiency; it is also equipped with hydraulic dry type dust collector to collect dust, so as to reduce pollution to the environment; The drilling rig features good integrity, high level of automation, high drilling performance, environmental protection and energy saving, easy operation, flexibility and safe driving, etc.

1. Disc type auto rod-loading system is used and auto rod-loading can reach the depth of 35m.

2. Equipped with amplitude mechanism, the carriage has total swing angle of 130° (97° to the right and 33° to the left) to freely complete horizontal and vertical holes transition without changing pivot. The lowest elevation horizontal hole is 550mm and the highest elevation is 4,200mm.

3. It adopts Caterpillar electronic fuel injection engine to provide high power and reliable performance.

4. Single engine with two-end output is configured to provide compact structure and convenient maintenance.

5. High wind pressure large-displacement air compression system (22m3/min, 20bar) guarantees fast drilling of the hammer.

6. Automatic leveling function of the travelling mechanism enables the drilling rig to be more adapted to rugged mountain roads in the mine.

7. Double rod lifting mechanism guides the rig all the way to prevent deflection in the drilling process (It guides the hammer during trepanning and the drill rod during drilling).

8. The drilling rig adopts imported hydraulic parts and electric appliance.

Technical Parameters of KT20 Integrated Surface DTH Drilling Rig

Rock rigidity

f=6-20

Drilling diametermm

135-190

Economic drilling depth(Auto Post Depth)m

35

Travel speed Km/h

3.0

Climbing capacity

25°

Ground clearancemm

430

Total Power kW

287

Diesel

卡特C11

Displacement of screw compressor m3/min

22

Discharge pressure of screw compressor bar

20

Dimensions (long×width×high)mm

11500×2716×3600

Weight Kg

23000

Rotation speed r/min

0-118

Rotary torque N*m

4100

Max. feed force N

65000

Guide tilt

125°

Guide swing

Right97° left33°

Boom swing

Right42° left15°

Boom lift

Up42° down20°

Frame balance angle

Up10° down10°

Feed length mm

4500

Compensation length mm

1200

Hammer

55A/65A

Drill rod

φ102×5000mm

Dust catching method

Dry / wet (optional)

Rod loading method

Auto rod-loading

Automatic anti-sticking method

Electro-hydraulic control to prevent sticking

Lubrication method of drill rod

Automatic splash lubrication

Drill rod thread protection

Equipped with float joint to protect the drill rod thread

Drilling display

Real-time display of drilling angle and depth

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