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5"High Air Pressure DTH Bits

ND55(DHD350R/COP54)/NSD5/NQL50/NM5
China market:yang.riquan@xjgdrill.com
Overseas market:rick.liao@xjgdrill.com
Product details

The new diamond dive drill is mainly used in geological exploration, coal mine, water conservancy and hydropower, highway, railway, bridge, construction and construction, etc.

Advantages of new diamond dive drilling

1, the long life of the drill: the alloy material, its service life is long, and higher than the similar products;
2, the drilling efficiency is high: the drill tooth is wear-resistant, so that the drill can always keep sharp, thus greatly improving the speed of the tooth.
3, the drilling speed is stable: the bit is scraped and cut to break the rock.
4, the effect is good: the new diamond bit has strong wear resistance, good diameter protection and can make the cutting teeth be used efficiently.
5, the use of a wide range: the practice proves that the drill is suitable for carbonate rock, limestone, chalk, clay rock, siltstone, sandstone and other soft and hard (9 - grade drillability of rock, hard rock drilling), compared with the general drill, especially drilling 6-8 grade rock the effect is particularly significant.


5 Middle Air Pressure DTH Bits

 



ND55(DHD350RCOP54)

THE Drill Head Diameter(mm)


Spline Key Number


NO.Air Holes


Gauge Buttons


Front Buttons


Weight(KG)


133

 -

2

7XØ16

7XØ14

15.0

140

2

7XØ18

714

16.0

146

2

8XØ18

7XØ14

17.0

152

 -

2

8XØ18

8XØ14

17.5

165

2

8XØ18

8XØ16

18.5

 

NSD5

133

2

7XØ16

7XØ14

15.5

140

2

7XØ18

714

16.0

146

 -

2

8XØ18

7XØ14

16.5

152

2

8XØ18

8XØ14

17.0

165

2

8XØ18

8XØ16

18.0

 

NQL50

133

2

7XØ16

7XØ14

15.5

140

 -

2

7XØ18

714

16.0

146

2

8XØ18

7XØ14

16.5

152

2

8XØ18

8XØ14

17.0

165

2

8XØ18

8XØ16

18.0

 

 

NM5

135

2

7XØ18

7XØ14

12.5

140

2

7XØ18

714

13.5

146

2

8XØ18

7XØ14

14.0

152

2

8XØ18

8XØ14

14.4

165

2

8XØ18

8XØ16

15.0

WE can design and manufacture according to customers requirement of the bit diameter,the NO.of air holes,carbide buttons and the face shape.

Our Bit Face Shape Selection

Drop Center---For high penetration rates in soft to medium hard and fissured rock formations. Low to medium air pressures.Maximum hole deviation control.


Concave Face---The all-round application bit face specially for medium hard and homogenerous rock formations.Good hole deviation control and good flushing capacity.

Convex Face---For high penetration rates in soft to medium-hard with low to medium air pressures.It is the most resistance to steel wash, and may reduce the load and wear on the gauge buttons,but poor hole deviation control.

Double Gauge Face---This kind of face shape is suitable for fast penetration rates in medium to hard rock formation.Designed for high air pressures and good resistance to steel wash step gauge bit.


Flat Face---This kind of face shape is suitable for hard to very hard and abrasive rock formations in applications with high air pressures.Good penetration rates an resistance to steel wash.


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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