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ND series DTH hammer

ND series of high pressure wind tunnel DTH hammer without nylon tube
Model:ND25A/ND35A/ND45A/ND45S/ND55A/ND55S
China market:yang.riquan@xjgdrill.com
Overseas market:rick.liao@xjgdrill.com
Product details




The new diamond dart impactor uses the latest drilling theory to design impactor, which enables the impactor to get the best energy transfer, fast drilling speed and low air consumption. The best quality of raw materials and the most advanced processing technology, stable performance and long life. Easy to use, easy to install and disassemble, easy to repair and easy to repair.
 
       DTH hammers are used for blast hole drilling and water well drilling project.Working with DTH drilling pipe and DTH drill bit, mainly applied in Mining,Marble quarry or well drilling and other construction projects.

It has following advantages:               

1.according to China's mining conditions, to absorb the advanced technology of domestic and foreign impactor   and design and manufacture of the latest products.

2.reasonable selection of materials, advanced manufacturing technology, quality assurance perfect.
   3.has higher drilling speed.
   4.can provide hardening treatment in order to prolong the service life and reduce the cost of use.
   5.single impact power is large, and the power consumption of broken rock is low.
   6.piston and bit weight to have the best momentum transfer.
   7.the modern theory is adopted in the structural design, which makes the stress wave duration longer, the stress amplitudeis lower, and the piston life is long.

 

 

The appearance of the picture is different from that of the actual product, and the actual product is the standard.

 


ND Series High Air Pressure DTH Hammers Without Foot Valve

Item Description

Weight(kg)

ND25A

ND35A

ND45A

ND45S

ND55A

ND55S

ND55C(A)

ND65A

ND75A

ND85A

ND1120A

1Top Sub

3.10

4.20

6.50

6.00

13.70

13.30

13.70

20.00

23.00

34.00

70.00

2“O” Ring Of Top Sub

-

0.01

0.01

0.01

0.015

0.015

0.015

0.02

0.015

0.015

0.04

3Breakout Ring

-

-

-

-

-

-

-

-

-

0.30

0.80

4Chenck Valve

0.10

0.20

0.35

0.30

0.70

0.70

0.70

0.70

0.70

1.20

2.00

5Spring

0.05

0.02

0.05

0.05

0.10

0.10

0.10

0.10

0.10

0.10

0.10

6Air Distributor

0.60

0.80

1.50

1.30

2.00

1.90

2.00

3.50

4.50

6.00

16.00

7Internal Cylinder

0.80

1.30

2.10

1.90

2.80

2.70

2.80

4.20

6.50

6.50

25.00

8Piston

3.80

5.50

8.50

7.80

15.00

14.50

15.00

23.00

28.00

42.50

113.00

9External Cylinder

4.50

9.50

15.20

14.60

24.00

23.00

25.00

31.50

40.00

60.00

173.00

10Guided Sleeve

0.60

1.00

1.30

1.20

2.60

2.50

3.20

6.50

7.50

5.30

24.00

11“O” Ring Of Stop Ring

0.005

0.05

0.01

0.005

0.01

0.01

0.01

0.01

0.01

0.01

0.01

12Stop Ring

0.10

0.15

0.30

0.20

0.50

0.50

0.50

0.60

0.80

1.20

4.00

13Breakout Ring

-

-

-

-

-

-

-

-

-

0.30

0.80

14Drive Chuck

1.40

1.90

3.40

3.40

6.50

6.20

4.000

6.00

8.00

17.50

46.00

15Drill Bit

3.20

5.00

9.00

8.50

16.00

15.50

15.90

26.00

28.50

40.00

140.00

 

Technical Data

Length(Without Bit)

ND25A

ND35A

ND45A

ND45S

ND55A

ND55S

872mm

888mm

1011mm

986mm

1110mm

1110mm

Weight(Without Bit)

16.00kg

25.00kg

43.20kg

37.00kg

69.00kg

66.00kg

External Diameter

?71mm

?82mm

?99mm

?92mm

?126mm

?116mm

Bit Shank

ND25

IR35

COP44/DHD340

COP44/DHD340

COP54/DHD350R

COP54/DHD350R

Hole Range

?71-?90mm

?90-?115mm

?110-?135mm

?105-?120mm

?135-?155mm

?127-?145mm

Connection Thread

T42x10x1.5

API2 3”/8REG

API2 3”/8REG

API2 3”/8REG

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

2 7”/8 IF

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

Working Pressure

1.0-1.5Mpa

1.0-1.5Mpa

1.2-2.0Mpa

1.2-2.0Mpa

1.3-2.3Mpa

1.3-2.3Mpa

Impact Rate at 14 Bar

25HZ

25HZ

30HZ

30HZ

28HZ

28HZ

Recommended Rotation Speed

22-35r/min

25-40r/min

22-35r/min

25-40r/min

20-35r/min

25-35r/min

Air Consumption

1.0Mpa:4.0m3/min

1.5Mpa:6.0m3/min

1.0Mpa:3.8m3/min

1.5Mpa:7.5m3/min

1.0Mpa:6.0m3/min

1.8Mpa:10.0m3/min

2.4Mpa:15.0m3/min

1.8Mpa:8.0m3/min

2.4Mpa:13.0m3/min

1.0Mpa:7.0m3/min

1.8Mpa:14.0m3/min

2.4Mpa:19.0m3/min

1.0Mpa:7.0m3/min

1.8Mpa:13.5m3/min

2.4Mpa:18.0m3/min

Technical Data

Length(Without Bit)

ND55C(A)

ND65A

ND75A

ND85A

ND1120A

1102mm

1238mm

1258mm

1359mm

1880mm

Weight(Without Bit)

68.00kg

98.00kg

120.00kg

175.00kg

474.00kg

External Diameter

?126mm

?142/?146mm

?165mm

?180/?185mm

?275mm

Bit Shank

ND55C/DHD350Q

COP64/DHD360

COP64/DHD360

COP84/DHD380

CDHD1120

Hole Range

?135-?155mm

?155-?203mm

?175-?216mm

?195-?254mm

?305-?445mm

Connection Thread

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

API3 1”/2REG

API3 1”/2REG

API4 1”/2REG

API6 5”/8REG

Working Pressure

1.3-2.3Mpa

1.5-3.0Mpa

1.5-3.0Mpa

1.5-3.0Mpa

2.0-3.5Mpa

Impact Rate at 17 Bar

28HZ

25HZ

23HZ

22HZ

20HZ

Recommended Rotation Speed

22-35r/min

20-30r/min

20-30r/min

15-25r/min

15-25r/min

Air Consumption

1.0Mpa:8.0m3/min

1.8Mpa:6.0m3/min

2.4Mpa:19.0m3/min

1.0Mpa:9.0m3/min

1.8Mpa:18.0m3/min

2.4Mpa:26.0m3/min

1.0Mpa:11.0m3/min

1.8Mpa:20.0m3/min

2.4Mpa:28.0m3/min

1.0Mpa:12.0m3/min

1.8Mpa:22.0m3/min

2.4Mpa:28.0m3/min

1.0Mpa:28.0m3/min

1.8Mpa:50.0m3/min

2.4Mpa:71.0m3/min






FAQ


Q: What's your delivery time?
A: Commonly produce need 20-25 days to produce. Within 3or 5 days if in stock.

Q: What methods of payment are accepted?
A: We agree T/T, L/C, West Union.

Q: What about the shipment?
A: Based on order quantity. 
    We can send it to you by Express, by Air, by Sea, and by Train. Or send the goods to your Chinese agent.

Q: How to control the quality?
A: We should be checking & testing everyone button bit before shipment.

Q: Do you agree sample order?
A: Yes, we are welcome your sample order to testing our quality.

Q: Can we select the button bit color?
A: Yes, We color the product according to the color you need.

Q: Can we change to our mark on the button bit?
A: Yes, we can casting your company mark on the button bit. (Except sample order).

Q: Do you have after-sale service and warranty service?
A: Any quality or quantity problem once confirmed, we will reply you within 24 hours and give you a solution.

Q: Can i trust your company?
A: Our company has been certificated by Chinese government, and verified by Alibaba Trade Assurance,100% refund of the Trade Assurance Amount. Alibaba can guarantee all of your payment, Just order from us!

Q: After Services:    

    a. Our sales team will response for your question within 24 hours (Holidays Excluded).   

    b. Technical Support will be available in any time.


Domestic:+86 730 6808685

International:+86 731 89708148

Address:岳阳市平江工业园

yueyang city ping jiang industrial park


Email:China market:yang.riquan@xjgdrill.com
Overseas market:rick.liao@xjgdrill.com
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