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Welcome to the website of Jiangxi Feilong Rock Bit Manufacture Co., Ltd.!

Mining drill bits

2021-12-0115Author:Jiangxi Feilong Rock Bit Manufacture Co., Ltd.

1、Summarize

This series of bits is mainly used in mining drilling.

2、Structural features

This series of bits is tri-cone rock bit for mining with insert teeth, air cooling and cleaning system, and roller sealing bearing.

This series has adopted convex roller, steel ball, second thrust bearing, roller, first thrust bearing, and anti-attrition alloy is applied on it.

This series has the merit of high boring hole efficiency and reliable working. It is widely used in metal and nonmetal mining exploitation.

3、Recommended drilling parameters

Formation

Bit Type

Drilling Weight  

(KN/mm)

Rotary Speed

(r/m)

Very hard with hard abrasive f=16~20

KX84

700-1500

80-50

Hard with hard abrasive or semi-adrasive f=12~16

KX74

600-1200

80-50

Hard with hard abrasive or semi-adrasive f=12~16

KX73

600-1200

80-50

Medium hard with high compeissive strength f=10~12

KX64

500-900

100-60

Medium hard with low compeissive strength f=8~10

KX54

400-850

120-80

Note: The upper limits of drilling weight and rotary speed recommended in above table could not be used at the same time.

4、Main Models 

 Bit size(mm)

 Bit Type

150

KX73、KX74

200

KX63、KX64、KX74

250

KX54、KX63、KX64、KX84

311

KX53

349

KX73

It can be designed and developed according to user needs.