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NSD SERIESE DTH hammer

NSD series of high pressure wind tunnel DTH hammer without nylon tube
Model:NSD4A/NSD5A/NSD6A/NSD8A/NSD10A/NSD12A
China market:yang.riquan@xjgdrill.com
Overseas market:rick.liao@xjgdrill.com
Product details


New diamond Construction Machinery Co., Ltd. production of high pressure pneumatic down hole impactor products sell well both at home and abroad, are widely used in metallurgical mines, address drilling, foundation piles, tunnel boring, rock blasting and other industries.

 

It is a kind of high air pressure DTH hammer without foot valve,and it is our newest design.It is also one of the most advanced DTH hammers in the world.

 

It has following advantages:

1.Out of the trouble of foot valve fracture expansion and contraction.

2.Lower energy consumption and higher impact frequency.The drilling speed is 15%-30% higher than the one with foot valve.

3.Simple structure,reliable parts,long life span,easy and cheap maintenance.

4. The components are few, the structure is simple, and all the parts are hardened. Therefore, the working life is long, the failure is few, and the maintenance is convenient.

 

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

 

NSD Series High Air Pressure DTH Hammers  Without Foot Valve

Item Description

Weight(kg)

NSD4A

NSD5A

NSD6A

NSD8A

NSD10A

NSD12A

1Top Sub

6.50

13.70

20.00

34.00

59.00

70.00

2“O” Ring Of Top Sub

0.10

0.015

0.015

0.015

0.03

0.04

3Breakout Ring

-

-

-

0.30

0.50

0.80

4Chenck Valve

0.35

0.70

0.70

1.20

1.40

2.00

5Spring

0.05

0.10

0.10

0.10

0.30

0.10

6Air Distributor

1.50

2.00

3.50

6.00

10.50

16.00

7Internal Cylinder

2.10

2.80

4.20

6.50

12.50

25.00

8Piston

8.50

15.00

23.00

42.50

77.00

113.00

9External Cylinder

15.30

24.00

28.00

59.00

110.00

175.00

10Guided Sleeve

1.30

2.60

2.50

6.00

11.50

25.00

11“O” Ring Of Stop Ring

0.005

0.01

0.01

0.01

0.01

0.01

12Stop Ring

0.20

0.50

0.50

1.20

1.50

4.50

13Breakout Ring

-

-

-

0.30

0.50

0.08

14Drive Chuck

4.00

7.50

7.50

16.00

31.50

48.00

15Drill Bit

9.80

16.00

27.00

37.00

108.00

165.00

Technical Data

Length(Without Bit)

NSD4A

NSD5A

NSD6A

NSD8A

NSD10A

NSD12A

1012mm

1090mm

1011mm

986mm

1110mm

1110mm

Weight(Without Bit)

40.00kg

70.00kg

43.20kg

37.00kg

69.00kg

66.00kg

External Diameter

Ø99mm

Ø126mm

Ø146mm

Ø180/Ø185mm

Ø226mm

Ø275mm

Bit Shank

SD4

SD5

SD6

SD8

SD10

SD12

Hole Range

Ø110-Ø135mm

Ø155-Ø190mm

Ø155-Ø203mm

Ø195-Ø254mm

Ø254-Ø311mm

Ø305-Ø445mm

Connection Thread

API2 3”/8REG

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

API3 1”/2REG

API4 1”/2REG

AP6 5”/8REG

API6 5”/8REG

Working Pressure

1.2-2.0Mpa

1.3-2.3Mpa

1.5-2.5Mpa

1.5-3.0Mpa

2.0-3.5Mpa

2.0-3.5Mpa

Impact Rate at 17 Bar

30HZ

28HZ

25HZ

22HZ

20HZ

20HZ

Recommended Rotation Speed

25-40r/min

20-35r/min

20-30r/min

15-25r/min

15-25r/min

20-35r/min

15-25r/min

Air Consumption

1.0Mpa:6.0m³/min

1.8Mpa:9.0m³/min

2.4Mpa:14.0m³/min

1.0Mpa:7.0m³/min

1.8Mpa:14.0m³/min

2.4Mpa:19.0m³/min

1.0Mpa:9.0m³/min

1.8Mpa:18.0m³/min

2.4Mpa:26.0m³/min

1.0Mpa:12.0m³/min

1.8Mpa:22.0m³/min

2.4Mpa:28.0m³/min

1.8Mpa:14.0m³/min

2.4Mpa:65.0m³/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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