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CCTEG-Xian Technology Communication

Xian Research Institute of China Coal Technology & Engineering Group

Owen Ji

ZDY4300LF Serial Drill Rig

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1.Introduction

2.Technical Specification

3. Technical Features

4. Applications

ZDY4300LF Serial Drill rig

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Underground

drill rigs

All hydraulic splitting rig

All hydraulic crawler rig

Hard to be moved in the

tunnel and roadway

Mature serial products

Drill depth range from 75m-

1000m

lower cost, cheaper

Easy to change sites

Integrated crawler

design

Large dimension

increases space require

of the roadway and

drill sites

1. Introduction

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1. Introduction

Destressing

boreholes from floor

Drivage covering borehole

Gas drainage (drill

boreholes from the

roadway under seam floor)

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1. Introduction

Drill rig requirement

Small dimension in size especial in width

Extensive azimuth and inclination angle adjustment

High drill capacity (torque, feed/pull force) and efficiency

Solution

Using splitting crawler structure to reduce each unit’s

dimension

Special designed structure to achieve wide range of azimuth/

inclination adjustment

Rated torque of the rig should reach 4300 Nm

Rated pull force should reach 120kN

High quality hydraulic components, Rexroth and Sauer

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1. Introduction

ZDY4300LF splitting crawler mounted drill rig

ZDY4300LF（A） splitting crawler mounted drill rig

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2.Technicial Specification

ZDY4300LF ZDY4300LF（A）

Rated torque 4300Nm 4300Nm

Rotary speed 60~200r/min 60~200r/min

Inclination of

the main axis-30°~80° -90°~90°

Rated feed/pull

force90/120kN 90/120kN

Rated power 55kW 55kW

Dimension (m)2.17×0.85×2.1（drill unit）2.63×0.85×1.8（pump unit）

2.30×0.85×2.1（drill unit）2.63×0.85×1.8（pump unit）

Weight3950kg（drill unit）3075kg（pump unit）

4200kg（drill unit）3075kg（pump unit）

Main technical parametersWonderful drill applicability

Suitable for narrow roadway/drill siteStrong drill capacity

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3.Technical Features

ZDY4300LF ZDY4300LF（A）

2.17m×0.85m×2.1m 2.30m×0.85m×2.1m

Competitive small dimension in width (drill unit)

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3.Technical Features

Competitive small dimension in width (pump station)

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electromagnetic starter tank main control panel

assistant control panel electric motorcooler caterpillar band

3.Technical Features

Competitive small dimension width

2.63×0.85×1.8（pump unit）

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3.Technical Features

Climbing experiment

Excellent climbing ability

Rig can climb hills as slope as 15°

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3.Technical Features

①Mature Constant pressure variable displacement control system

② High quality hydraulic components（Rexroth and Sauer）maintain system reliability

③ Linkage system and optimized pressure/flow rate control lead to

simple operation

Reliably hydraulic system

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3. Technical Features

Reliable steadiness

On the base, four hydro-cylinders

can be extended to increase the stability

On the top, two hydro-

cylinders push the roof

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3.Technical Features

Extensive adjustment range of drill azimuth, height and inclination

Drill height adjustment Drill azimuth adjustmentDrill height ranges from 1.3-2.3m

Azimuth angle ranges from -90 to +90

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3.Technical Features

Drill inclination adjustmentZDY4300LF: ranges from -30° to +80°ZDY4300LF(A): ranges from -90° to +90°

Extensive adjustment range of drill azimuth, height and inclination

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4. Application

(1). Luling Coal Mine, Anhui, China

Hole No.

Azimuth angle/°

Inclinationangle/°

Depth/m

1# 0 40 45

2# 0 70 33

4# 0 61 36

5# 0 53 39

6# 0 46 42

8# 0 35 42

9# 0 30 59

10# 0 26 73

8 boreholes, 385m are drilled in just 4

days in experiment. Drill efficiency was

increased by more than 35% compare with

other rigs.

On-site designed borehole profile

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4. Application

(2).Huangling Coal Mine, Shaanxi, China

Hole

No.

Azimuth

angle/°Inclination

angle/°Depth/m Total/m

1# 75 1 140

612

2# 75 3 52.5

3# 75 -1 73.5

4# 90 -2.5 66

5# 90 0 280

Inner seam borehole drilling

5 boreholes, 612m were drilled in experiment.

The large depth reached 280m

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4. Application

(2).Huangling Coal Mine, Shaanxi, China

Hole

No.

Azimuth

angle/°Inclination

angle/°Depth

/m

Total

drill/m

6# 29 20 144

924

7# 25 20 132

8# 20 16 132

9# 21 14 132

10# 17 8 132

11# 15 12 132

12# 17 8 120

Roof borehole drlling

Hole

No.

Azimuth

angle/°Inclination

angle/°Depth

/mTotal

drill/m

13# -10 45 87

714

14# -6 52 81

15# -7 52 126

16# -6 60 153

17# -4 63 117

18# -3 69 150

Cross seam borehole drilling

Average drilling rate reaches to 30m/h

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Conclusion

Features and benifits

Competitive small dimension in width

Wide range of azimuth/ inclination adjustment

Strong drill capacity (rated torque, speed and drill depth)

Rated pull force should reach 120kN

Excellent climbing ability

High quality hydraulic components, Rexroth and Sauer

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Thanks for your time！Have a good day！

Business representative：Owen Ji

Tel：+8629-81778310

Mobile：+8613319186255

Skype：maioutwo

Email：jiqianhui@cctegxian.com

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