m.chinacoal11.com
We provide service of enterprise’s customs declaration,inspection
Button bit-face design:
1. Flat face, drop centre, tungsten carbide hemispherical and ballistic.
2. Normal and retrac body.Couplings sleeve- manufactured with a middle stop to prevent walking . Include couplings sleeve.
3. Shank adaptors - carburized and manufactured with tight tolerances and controlled straightness.
Introduction of button bits:
1) With carbide buttons hot pressed on bits bodies, Tapered Button Bits have a very good drilling performance and long life time. Different diameters and taper degrees are available to suit different applications in mining, quarrying etc. We can supply long skirt and short skirt Tapered Button Bits.
2) No matter what kinds of rock—Soft rock, loose medium rock, hard rock and any other special formations, just tell us what you need and leave others at our disposal, We can also do according to customers' drawing or sample. So if you are interested in our products, please feel free to let us know. We also wish can do business with the people from all over the world.
The technical parameter of Normal-type button bits
| |||||||
Type
|
Dia
mm
|
No.of buttons
|
Buttons*button dia
|
Flushing hole
|
Weight kg
| ||
Guage
|
Centre
|
Side
|
Centre
| ||||
R25
|
38
|
7
|
5*9
|
2*7
|
1
|
1
|
0.6
|
41
|
7
|
5*9
|
2*8
|
1
|
1
|
0.5
| |
45
|
7
|
5*11
|
2*8
|
2
|
1
|
0.7
| |
R28
|
38
|
7
|
5*9
|
2*7
|
1
|
1
|
0.6
|
38
|
6
|
4*9
|
2*8
|
2
|
1
|
0.6
| |
43
|
7
|
5*9
|
2*9
|
2
|
1
|
0.7
| |
R32
|
45
|
7
|
5*11
|
2*8
|
2
|
1
|
0.8
|
48
|
7
|
5*11
|
2*9
|
2
|
1
|
1.0
| |
51
|
7
|
5*11
|
2*10
|
2
|
1
|
1.0
| |
57
|
9
|
6*11
|
3*9
|
-
|
3
|
1.1
| |
64
|
12
|
8*10
|
4*10
|
-
|
2
|
1.5
| |
76
|
12
|
8*11
|
4*11
|
-
|
2
|
1.8
| |
T38
|
64
|
12
|
8*10
|
4*10
|
-
|
2
|
1.6
|
70
|
10
|
6*11
|
3*11
|
-
|
3
|
1.9
| |
76
|
13
|
8*12.7
|
5*11
|
1
|
2
|
2.3
| |
89
|
13
|
8*12.7
|
4*11
|
-
|
4
|
3.0
| |
102
|
14
|
8*14.5
|
6*12.7
|
1
|
4
|
3.9
| |
T45
|
70
|
10
|
6*11
|
3*11
|
-
|
3
|
2.0
|
76
|
14
|
8*12.7
|
4*11
|
2
|
2
|
2.5
| |
89
|
13
|
8*12.7
|
4*11
|
-
|
4
|
3.0
| |
102
|
13
|
8*14.5
|
4*12.7
|
-
|
4
|
6.4
| |
115
|
14
|
8*14.5
|
6*14.5
|
1
|
4
|
5.8
| |
T51
|
89
|
12
|
8*12.7
|
4*12.7
|
-
|
2
|
3.5
|
89
|
13
|
8*12.7
|
4*11
|
-
|
4
|
3.5
| |
102
|
13
|
8*14.5
|
4*12.7
|
-
|
4
|
5.3
| |
115
|
16
|
9*14.5
|
6*14.5
|
-
|
3
|
9.7
| |
127
|
20
|
10*14.5
|
10*12.7
|
-
|
2
|
6.8
      | |
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