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NQL series of DTH hammer

NQL series of high pressure wind tunnel DTH hammer without nylon tube
Model:NQL4A/NQL5A/NQL6A/NQL8A/NQL95A
China market:yang.riquan@xjgdrill.com
Overseas market:rick.liao@xjgdrill.com
Product details


Hunan new diamond Construction Machinery Co., Ltd. is a professional R & D and production of mining, rock chiseling, infrastructure, well foundation pile series of high, medium pressure, reverse circulation DTH impactor, drill; With the pipe drilling products; series of top hammer-impact rock drill bit, screw drill and other drilling technology-based manufacturing enterprises. My company produces, developed a series of high pressure, energy efficient high-pressure, through-type reverse circulation DTH impact drill with drilling efficiency, low failure rate, long life and other advantages. Even for all types of harsh rock with high hardness and high abrasiveness, the Supman Boring Tool can also be used for efficient and economical drilling. "New King Kong" brand DTH drill with its stable quality, excellent performance and selling the country, and exported to Europe, Australia, Africa, Russia, the Middle East, and Southeast Asia.

    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.Lower air and oil consumption.The oil consumption is about 10% lower than the one with foot valve.


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


NQL Series High Air Pressure DTH Hammers Without Foot Valve

Item Description

Weight(kg)

NQL4A

NQL5A

NQL6A

NQL8A

NQL95A

1Top Sub

6.50

13.70

20.00

34.00

35.00

2 “O” Ring Of Top Sub

0.01

0.015

0.015

0.015

0.01

3Breakout Ring

-

-

-

0.30

0.04

4Chenck Valve

0.35

0.70

0.70

1.20

1.20

5Spring

0.05

0.10

0.10

0.10

0.10

6Air Distributor

1.50

2.00

3.50

6.00

7.00

7Internal Cylinder

2.10

2.70

4.20

6.50

7.50

8Piston

8.50

15.00

23.00

42.50

48.00

9External Cylinder

15.20

24.00

30.00

59.00

75.00

10Guided Sleeve

1.80

3.00

4.00

6.30

12.00

11“O” Ring Of Stop Ring

0.005

0.01

0.01

0.01

0.01

12Stop Ring

0.20

0.40

0.60

1.40

1.70

13Breakout Ring

-

-

-

0.30

0.40

14Drive Chuck

3.20

4.50

5.50

13.00

15.00

15Drill Bit

9.00

16.00

25.00

35.00

50.00

Technical Data

Length(Without Bit)

NQL4A

NQL5A

NQL6A

NQL8A

NQL95A

1070mm

1090mm

1183mm

1330mm

1340mm

Weight(Without Bit)

40.00kg

67.00kg

90.00kg

171.00kg

203.00kg

External Diameter

Ø99mm

Ø126 mm

Ø165mm

Ø180/Ø185mm

Ø203mm

Bit Shank

QL40

QL50

QL600

QL80

QL80

Hole Range

Ø110-Ø135mm

Ø155-Ø203mm

Ø155-Ø203mm

Ø195-Ø254mm

Ø216-Ø254mm

Connection Thread

API2 3”/8REG

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

API3 1”/2REG

API4 1”/2REG

API4 1”/2REG

Working Pressure

1.2-2.0Mpa

1.3-2.3Mpa

1.5-2.5Mpa

1.5-3.0Mpa

1.8-3.0Mpa

Impact Rate at 17 Bar

30HZ

28HZ

25HZ

22HZ

22HZ

Recommended Rotation Speed

20-30r/min

20-35r/min

20-30r/min

15-25r/min

15-25r/min

Air Consumption

1.0Mpa:5.0m³/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

1.0Mpa:16.0m³/min

1.8Mpa:28.0m³/min

2.4Mpa:39.0m³/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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