Mining drill bits

2021-12-0166Author：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

It can be designed and developed according to user needs.

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