Tungsten Carbide Coal Mining Bit Button

Tungsten carbide coal mining button are used in coal picking bits, with its high hardness and impact resistance, they are very well worked in high speed of rotary milling with long working life.
Product description

Tungsten Carbide Coal Mining Bit Button
Overview:

Tungsten carbide coal mining button are used in coal picking bits, with its high hardness and impact resistance, they are very well worked in high speed of rotary milling with long working life.


Grade Properties:

GRADE

Representative Performance Index

Recommended Applications

Hardness

Density
(g/cm)

Traverse Strength

JK30.3

14.53

87.1

3000

Used as insert of whirly rock drilling machines to drill medium hard formations.

JK30.4

14.53

86.8

3000

Primarily for the auger and buttons of digging machines and boring machines to mine coal and dig nomal rock.

JK30.42

14.52

86.7

2800

Primarily for the auger and buttons of digging machines and boring machines to mine coal and dig nomal rock.

JK30.5

14.53

86.0

3000

Primarily for the auger and buttons of digging machines and boring machines to mine coal and dig nomal rock.

JH10C

14.5

87.0

2800

Primarily for the auger and buttons of digging machines and boring machines to mine coal and dig nomal rock.


Dimension:

coal mining bit_副本.jpg


Type

Dimension (mm)

Φ

H

h

SR1

SR2

a

β

JQ1022178

8.9

16.80

10.80

1.90

1.60

77

140

JQ102778B

15.68

25.20

14.10

1.60

1.00

80

140

JQ1022178B

8.93

16.80

10.80

1.20

1.00

79

140

JQ1021278B

12.40

21.10

12.70

1.50

1.00

80

140    111140140


Tolerance:

Nominal size

Tolerance (mm)

0

H

SR

a

≤10.0

±0.15

±0.15

±0.30

+1.5

>10.0

±0.20

±0.20

±0.50

±2.0

Note: the other types and specifications for tungsten carbide coal mining buttons are in the process of updating along with the technology improvement, contact us for newly information.


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