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gold mining equipment, 1.Fast drilling speed, low air consumption, 2.Straightness and hole quality, 3.High penetration rate - details see: https://www.machineto.com/china-coal-gold-mining-equipment-10317681

Down the Hole Hammer---Gold mining equipment.

Shandong Zhongrui Construction Machinery Co., Ltd is a top class manufacturer supplies 930 DHD340 350 360 380 / COP44 54 64 84series high quality DTH hammer and suitable dth drill bits.

We are famous for high quality products and good service. "-A" series fast version DTH hammer is high effective and easy maintenance.

Series

General Model

ZR Model

Outside Diameter (mm) /(inch)

Length no drill bit (mm)

Weight no drill bit (Kgs)

Working Pressure (Mpa)

Impact Freqency (HZ)

Recommended Rotation Speed (r/min)

Air consumption (m3/min)

Thread Standard

Bit Size (mm)

Middle/High air Pressure

930

ZRC80Z

φ81

3

869

23

0.7~1.4

16~18

25~40

6~10

T48×10

φ90~φ110

DHD340 COP44

ZRC100G

φ99

4

1046

42

1.0~2.5

27 at 1.7Mpa

25~40

6~15

API (2 3/8)" (REG)

φ110~φ135

ZRC100G-A

φ99

4

985

38

1.0~2.5

30 at 1.7Mpa

25~40

6~14

API (2 3/8)" (REG)

φ110~φ135

DHD350 COP54

ZRC130G

φ125

5

1226

75

1.0~2.5

25 at 1.7Mpa

20~35

9~23

API (2 3/8)" (REG) API (2 3/8)" (IF) API (3 1/2)" (REG)

φ135~φ155

ZRC130G-A

φ126

5

1105

67

1.0~2.5

28 at 1.7Mpa

20~35

7~19

API (2 3/8)" (REG) API (2 3/8)" (IF) API (3 1/2)" (REG)

φ135~φ155

DHD360 COP64

ZRC150G

φ136

6

1392

105

1.0~2.5

23 at 1.7Mpa

20~30

10~28

API (2 3/8)" (IF) API (3 1/2)" (REG)

φ152~φ203

ZRC150G-A

φ143

6

1238

100

1.0~2.5

25 at 1.7Mpa

20~30

9~26

API (3 1/2)" (REG)

φ152~φ203

DHD380 COP84

ZRC180G

φ181

8

1545

205

20 at 1.7Mpa

15~25

15~34

API (4 1/2)" (REG)

φ195~φ254

ZRC180G-A

φ180

8

1354

173

1.0~2.5

22 at 1.7Mpa

15~25

12~28

API (4 1/2)" (REG)

φ195~φ254

Remark: In ZR Model name "-A" means fast version.