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12"High Air Pressure DTH Bits

DHD1120/NSD12/NUMA120/NUMA125
China market:yang.riquan@xjgdrill.com
Overseas market:rick.liao@xjgdrill.com
Product details

     The new diamond dive bit is paired with the corresponding hammer (bore diameter and spline configuration). Customers can customize their DTH bits in various ways, such as changing tungsten carbide inserts (spherical, ballistic, etc.), surface profiles (plane, concave, convex, etc.) and flushing holes.
     The new diamond dive impactor is connected with a drill bit for drilling engineering. The new diamond uses high quality steel and the best level alloy steel as raw material, and adopts special heat treatment technology and advanced cemented carbide inserting technology, so that the drill bit can play a good role even in hard rock layer, and at the same time, it can save energy to the greatest extent.

12 Middle Air Pressure DTH Bits


DHD1120

THE Drill Head Diameter(mm)

Spline Key Number

NO.Air Holes

Gauge Buttons   

Front Buttons

Weight(KG)

305

 -

4

12XØ18

36XØ16

152.0

311

4

12XØ18

3616

157.0

330

4

16XØ18

42XØ16

165.0

346

4

16XØ19

48XØ16

178.0

381

4

16XØ19

48XØ16

198.0

 

NSD12

305

 -

4

12XØ18

36XØ16

156.0

311

 -

4

12XØ18

3616

168.0

330

4

16XØ18

42XØ16

180.0

356

4

16XØ19

48XØ16

191.0

381

 -

4

16XØ19

48XØ16

200.0


NUMA120

305

 -

4

12XØ18

36XØ16

152.0

311

 -

4

12XØ18

3616

158.0

330

 -

4

16XØ18

42XØ16

165.0

356

 -

4

16XØ19

48XØ16

178.0

381

 -

4

16XØ19

48XØ16

195.0


NUMA125

305

 -

4

12XØ18

36XØ16

170.0

311

 -

4

12XØ18

3616

173.0

330

 -

4

16XØ18

42XØ16

182.0

356

 -

4

16XØ19

48XØ16

191.0

381

 -

4

16XØ19

48XØ16

200.0

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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