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NQL series DTH hammer

NQL series high pressure DTH impactor with nylon tube
model:NQL4/NQL5/NQL6/NQL8
China market:yang.riquan@xjgdrill.com
Overseas market:rick.liao@xjgdrill.com
Product details


The new diamond dive impactor is also called the pneumatic percussion device and the pneumatic DTH hammer. With compressed air as a dynamic medium, the power machine with a continuous impact load is produced by using the energy of compressed air to produce a continuous impact load. Compressed air can also be used as a hole washing medium. The pneumatic impactor has high wind pressure and low wind pressure, valve type and valveless type. Usually, the pneumatic impactor is directly connected with the hard alloy column tooth bit to break the rock with the impact mode, and the low speed rotation does not take the core in full drilling. It is mainly used in the fields of hydrologic well drilling, non core geological drilling, geological disaster prevention and control engineering, and mine rock drilling. It is suitable for application in gravel and hard rock, and the bit with special structure can also be used in soft soil. The mechanical drilling speed is generally much higher than the hydraulic impactor drilling, but it needs to be equipped with a large capacity air compressor, the fuel consumption is larger, and there is noise and dust pollution. The drilling depth is greatly influenced by the water level and water level of the groundwater.

 

It is a kind of valveless high air pressure DTH hammer with foot valve.It has the following advantages:

 

The main features are as following:

1.Valveless air distribution.More reliable.

2.Simple design of the piston.long life span.

3.More effcient energy transfer,faster drilling speed,lower air consumption and lower oil consumption.

4.Fewer intemal parts,simple structure,long life span,less failure and easier to maintain because all the parts are heat trated.

5.Easy to disassemble because the top sub,the drive chuck and the extemal cyinder are connected by muitiple steps thread.

 

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 With Foot Valve

Item Description

Weight(kg)

NQL4

NQL5

NQL6

NQL8

1Top Sub

6.50

15.00

20.00

41.00

2“O” Ring Of Top Sub

0.01

0.015

0.02

0.02

3Breakout Ring

-

-

-

0.30

4Chenck Valve

0.42

1.00

1.00

1.50

5Spring

0.04

0.10

0.10

0.10

6Compression Buffer

0.04

0.10

0.10

0.42

7Air Distributor

2.20

3.50

6.00

13.00

8Internal Cylinder

2.30

4.20

5.00

8.60

9Piston

9.00

19.00

23.50

41.00

10External Cylinder

16.50

24.60

31.00

60.00

11Guided Sleeve

-

0.90

1.00

2.20

12“O” Ring Of Stop Ring

0.01

0.01

0.02

0.02

13Stop Ring

0.30

0.40

0.60

1.20

14Breakout Ring

-

-

-

0.30

15Drive Chuck

3.00

4.60

5.40

12.00

16Drill Bit

9.50

15.50

24.60

35.00

Technical Data

Length(Without Bit)

NQL4

NQL5

NQL6

NQL8

1097mm

1156mm

1212mm

1465mm

Weight(Without Bit)

41.00kg

73.00kg

95.00kg

182.00kg

External Diameter

Ø99mm

Ø126mm

Ø142mm Ø144mm

Ø146mm Ø148mm

Ø180mm

Bit Shank

QI40

QI50

QI60

QI80

Hole Range

Ø110-Ø135mm

Ø135-Ø155mm

Ø155-Ø190mm

Ø195-Ø254mm

Connection Thread

API2 3”/8REG

API3 1”/2REG

API2 7”/8REG

API3 1”/2REG

API2 7”/8REG

2 7”/8 IF

API4 1”/2REG

Working Pressure

1.2-2.0Mpa

1.3-2.3Mpa

1.5-2.5Mpa

1.5-3.0Mpa

Impact Rate at 14 Bar

27HZ

25HZ

23HZ

20HZ

Recommended Rotation Speed

25-40r/min

25-40r/min

20-30r/min

15-25r/min

Air Consumption

1.0Mpa:6.0m³/min

1.8Mpa:10.0m³/min

2.4Mpa:15.0m³/min

1.0Mpa:9.0m³/min

1.8Mpa:15.0m³/min

2.4Mpa:23.0m³/min

1.0Mpa:10.0m³/min

1.8Mpa:20.0m³/min

2.4Mpa:28.5m³/min

1.0Mpa:15.0m³/min

1.8Mpa:26.0m³/min

2.4Mpa:34.0m³/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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