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1. Super long life;, 2. High wear resistance;, 3. High impact resistnace toughness;, 4. High efficiency;, 5. For coal mine. - details see: https://www.machineto.com/56mm-pdc-concave-drill-bit-with-3-wings-for-coal-mine-drilling-10317418

56mm pdc drill bit with 3 wings for coal mine drilling

Description:

PDC (Polycrystalline Diamond Compact) is composed of diamond micron powder and cemented carbide liner than are sintered toghether under high temperature and high pressure.It not only has the high wear resistance that diamond has, but also has the high impact-resistance toghness.

Xi'an JINGWEI company as a professional manufacturer supplys all kinds of coal mine drill bits. Our bits are all used to penetration the degassing hole, drain hole, and grouting hole of coal mine.

Our 56mm pdc concave drill bit with 3 wings, which is suitable for drilling the rock formation with f<8. We can provide the size of concave bit from 48mm to 153mm.

Characteristics:

1. Using PDC as the main cutting components;

2. With the excellent wear ability and impact toughness of the PDC;

3. High drilling speed;

4. Improving the drilling efficiency and reduced labor intensity;

5. Widely used in warious of different fields, mining, hydrology, subterranean, piling, water well drill and oil well drilling. It has high efficiency and strong wear resistance for drilling.

Specification:

Soft rock

Medium-hard to hard rock

Hard to strong-hard rock

Size (mm)

1

2

3

4

5

6

7

8

9

10

11

12

Concave

*

*

*

*

*

Φ48~Φ153

Pillar

*

*

*

*

*

Φ60~Φ113

Blade

*

*

*

*

*

*

Φ75~Φ270

Expansion

*

*

*

*

*

*

*

*

*

*

Φ113~Φ270

Pictures for reference:

Drill bit

56mm pdc concave drill bit

others bits

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