KQZD Series Down-the-hole Drilling Rig

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1. Introduction to KQZD Series Down-the-hole Drilling Rig

The KQZD series down-the-hole drilling rig is an efficient and flexible open-pit crawler rock drilling equipment. It transmits impact energy to the drill bit through the impactor. The drill bit rotates at high speed while impacting the rock at high frequency. Compressed air discharges the drilled rock cuttings out of the hole, realizing the synchronous operation of "impact-rotation-slag discharge". The down-the-hole drilling vehicle has excellent mobility and off-road capability, adapts to all-terrain operations, and can quickly and flexibly transfer in complex terrain. It is mainly used in open-pit mine blasting holes, large-scale stone engineering, water conservancy and hydropower construction and other fields.The Jujiang down-the-hole drill rig is an efficient and reliable choice for hard rock deep hole operations

2. Features of KQZD Series Down-the-hole Drilling Rig

2.1 It adopts steel track chassis and has good off-road performance.

2.2 Some models of crawler frames are equipped with pitch cylinders, which can freely adjust the center of gravity of the vehicle body to ensure stability and safety when drilling on uneven terrain.

2.3 The drill arm and drill frame are equipped with a full set of adjustment cylinders, which can easily adjust the drilling angle in all directions.

2.4 Equipped with high-power engine and advanced hydraulic system, it is stable, reliable and powerful.

2.5 The combination of down-the-hole impact and hydraulic rotation can greatly improve the hard rock drilling speed.

2.6 The dry dust collector (optional) can significantly reduce the dust concentration in the construction environment, protect the health of workers, and extend the life of equipment.

2.7 The drilling rig is simple and easy to learn to operate, so novices can quickly get started and reduce dependence on manual labor.

2.8 It adopts heavy-duty structural design, key parts are shock-proof and wear-resistant, with long service life and low failure rate.‌‌

3.Parameters of KQZD Series Down-the-hole Drilling Rig 

Drilling vehicle model

KQZD-H4A

KQZD-416

KQZD-420B

KQZD-420S

KQZD-430

KQZD-593

Machine parameters

Drilling machine category

Split machine

Split machine

Split machine

Split machine

Split machine

Split machine

Air compressor

/

/

/

/

/

/

Machine weight

3.8T

4.25T

4.25T

5.34T

6.05T

6.34T

Machine size

4700*2080*2300mm

4900*2000*2200mm

4900*2100*2200mm

6500*2280*2400mm

7370*2360*2560mm

7000*2280*2400mm

Gradeability

25°

25°

25°

25°

25°

25°

Track frame swing angle

/

/

±10°

/

±10°

±10°

Walking speed

2.5km/h

2.5km/h

2.5km/h

2.5km/h

3km/h

4km/h

Power parameters

Diesel engine model

Yuchai YCD4R22T-8

Yuchai YCD4DK80

Yuchai YCD4R22T-8

Yuchai YCD4DK80-T302

Yuchai YC4DK-100

Yuchai YC4DK100-T304

Diesel engine power

60kW

58kW

60kW

78kW

73.5kW

88kW

Motor power

/

/

/

55kW

/

/

Working Parameters

Power head

Single cycloid hydraulic motor

Double cycloid hydraulic motor

Double cycloid hydraulic motor

Double cycloid hydraulic motor

Double cycloid hydraulic motor

Double cycloid hydraulic motor

Rotation speed

0~200rpm

0~150rpm

0~120rpm

0~140rpm

0~100rpm

0~160rpm

Rotational torque

1650N.m

1950N.m

2000N.m

2000N.m

2000N.m

2000N.m

Ways of advancement

Hydraulic cylinder chain

Hydraulic cylinder chain

Hydraulic cylinder chain

Hydraulic cylinder chain

Hydraulic cylinder chain

Hydraulic motor chain

Propulsion

25kN

25kN

15kN

35kN

20kN

55kN

Lifting force

15kN

15kN

25kN

80kN

45kN

90kN

Drill pipe specifications

64*2000mm

64*3000mm

64/76*3000mm

76*3000mm

76*3000mm

64/76/89*3000mm

Drilling diameter

90~100mm

90~127mm

90~130mm

90~203mm

90~130mm

90~254mm

Drilling depth

30m

30m

30~40m

30~40m

30~40m

60m

Applicable rock strength

F=6~20

F=6~20

F=6~20

F=6~20

F=6~20

F=6~20

Air consumption

10-18m³/min

10-18m³/min

10-18m³/min

10-18m³/min

10-20m³/min

14~35 m3/min

Packages

Is a dry dust collector included

No

No

No

No

No

No

Supporting drilling tools

20m φ60 drill rod,

1 low-pressure 90 impactor,

1 φ90 down-the-hole drill bit

20m φ64 drill rod,

1 low-pressure 90 impactor,

1 φ90 down-the-hole drill bit

20m φ76 drill pipe,

1 low-pressure 90 impactor,

1 φ90 down-the-hole drill bit

20m φ76 drill pipe,

1 set of high-pressure 45A impactor,

1 φ115 down-the-hole drill bit

20m φ76 drill pipe,

1 set of high-pressure 45A impactor,

1 φ115 down-the-hole drill bit

20m φ76 drill pipe,

1 set of high-pressure 45A impactor,

1 φ115 down-the-hole drill bit

Note: Products are constantly being improved. Any changes will not be notified separately. Please refer to the actual product.

 

Drilling vehicle model

KQZD-103YT

KQZD-843YT

KQZD-720

KQZD-712

KQZD-726

Machine parameters

Drilling rig category

All-in-one machine

All-in-one machine

Split machine

Split machine

Split machine

Air compressor

15/18

14/17

/

/

/

Machine weight

10T

9.5T

6.2T

5.3T

4.1T

Machine size

8800*2600*2300mm

8400*2400*2300mm

6000*2270*2600mm

5550*2290*2600mm

5500*2050*2200mm

Gradeability

25°

25°

25°

25°

25°

Track frame swing angle

±10°

±10°

±10°

±10°

/

Walking speed

3.5km/h

3.5km/h

3km/h

3km/h

2.5km/h

Power parameters

Diesel engine model

Yuchai National III six-cylinder

Cummins National 26 Cylinder

Yuchai National Three and Four Cylinders

Yuchai National 24-cylinder

Yuchai YCD4T22T-105A

Diesel engine power

176kW

154kW

73.5kW

70kW

78kW

Motor power

/

/

/

/

/

Working Parameters

Power head

Double cycloid hydraulic motor

Double cycloid hydraulic motor

Double cycloid hydraulic motor

Double cycloid hydraulic motor

Double cycloid hydraulic motor

Rotation speed

0~120r/min

0~100r/min

0~180r/min

0-140r/min

0~150rpm

Rotational torque

2000N.m

2200N.m

3000N.m

2200N.m

2200N.m

Ways of advancement

Aluminum alloy beam + hydraulic motor propulsion

Hydraulic motor chain

Hydraulic cylinder chain

Hydraulic cylinder chain

Hydraulic cylinder chain

Propulsion

12kN

12kN

20kN

15kN

15kN

Lifting force

18kN

18kN

45kN

25kN

25kN

Drill pipe specifications

Self-changing rod 6+1, Φ64*3000mm

64*3000mm

76*3000mm

Φ64/76*3000mm

64*3000mm

Drilling diameter

90~130mm

90~115mm

90~300mm

90~130mm

90~130mm

Drilling depth

21m

21m

30m

35m

30m

Applicable rock strength

F=6~20

F=6~20

F=6~20

F=6~20

F=6~20

Air consumption

15m³/min

14m³/min

14~35 m3/min

10-18m³/min

10-18m³/min

Packages

Is a dry dust collector included

Yes

Yes

No

No

No

Supporting drilling tools

21m φ64 drill rod,

1 high-pressure 45A impactor,

1 φ115 down-the-hole drill bit

21m φ64 drill rod,

1 high-pressure 45A impactor,

1 φ115 down-the-hole drill bit

20m φ76 drill pipe,

1 high-pressure 45A impactor,

1 φ115 down-the-hole drill bit

20m φ76 drill pipe,

1 low-pressure 90 impactor,

1 φ90 down-the-hole drill bit

20m φ64 drill rod,

1 low-pressure 90 impactor,

1 φ90 down-the-hole drill bit

Note: Products are constantly being improved. Any changes will not be notified separately. Please refer to the actual product.

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