1.This retrac top hammer button bit adopts optimized retrac skirt structure, greatly improves hole straightness and effectively prevents hole deviation for deep hole drilling.
2.The retrac top hammer button bit delivers stable performance in fractured and fissured rock, significantly lowering the risk of bit sticking during drilling.
3.Suitable for inclined holes and upward drilling. This top hammer button bit is widely used in tunneling, anchor bolt drilling and underground mining engineering.
4.Optimized tungsten carbide buttons equip the top hammer button bit with strong impact resistance and longer service life under complex geological conditions.
5.Multiple thread specifications available. This retrac top hammer button bit matches all mainstream top hammer drill rigs.
|
Specificction
|
Head Shape
|
Head Dia.(mm)
|
Shank Length
|
Spline
|
Port Holes
|
Button Type
|
Gauge Buttons
|
Front Buttons
|
Weight(KG)
|
|
R32
|
Flat Face |
51
|
130
|
3
|
/
|
Domed
|
6*Φ10
|
3*Φ9 |
1.25
|
|
Flat Face |
57
|
130
|
3
|
/
|
Ballistic
|
6*Φ10
|
3*Φ9
|
1.65
|
|
|
T38
|
Center Drop Face |
64
|
160 |
2
|
/
|
Domed
|
8*Φ9
|
5*Φ9
|
2.45
|
|
Flat Face
|
70
|
160
|
3
|
/
|
Domed
|
6*Φ11 | 4*Φ9 | 2.85 | |
|
Center Drop Face
|
76
|
160
|
4
|
/
|
Domed
|
8*Φ11
|
5*Φ11
|
3.7
|
|
|
Center Drop Face
|
89
|
170
|
4
|
/
|
Parabola
|
8*Φ12
|
4*Φ12+2*Φ10
|
5.3
|
|
|
T45
|
Center Drop Face
|
72
|
160
|
4
|
/
|
Domed
|
8*Φ11
|
5*Φ10
|
3.15
|
|
Center Drop Face
|
76
|
160
|
4
|
/
|
Domed
|
8*Φ12
|
4*Φ11+1*Φ10
|
3.55
|
|
|
Center Drop Face
|
89
|
170
|
4
|
/
|
Ballistic
|
8*Φ12
|
4*Φ12+2*Φ10
|
5
|
|
|
Center Drop Face
|
102
|
180
|
4 |
/
|
Domed
|
8*Φ13
|
6*Φ12
|
7.3
|
|
|
T51
|
Center Drop Face
|
89
|
170
|
4
|
/
|
Ballistic
|
8*Φ12
|
4*Φ12+2*Φ11
|
5
|
|
Center Drop Face
|
102
|
180
|
4
|
/
|
Ballistic
|
8*Φ13
|
4*Φ13+2*Φ12
|
7.12
|
|
|
Flat Face
|
115
|
185
|
2
|
2
|
Domed
|
8*Φ14
|
6*Φ13
|
10.1 | |
|
Center Drop Face
|
127
|
185
|
4
|
/
|
Ballistic
|
8*Φ14
|
4*Φ14+3*Φ13
|
12.4
|
|
|
ST58
|
Flat Face
|
102
|
180
|
3
|
/
|
Parabola
|
9*Φ13
|
6*Φ12
|
6.5
|
|
Flat Face
|
115
|
185
|
2
|
2
|
Domed
|
8*Φ14
|
6*Φ13
|
9.5
|
|
|
Center Drop Face
|
127
|
185
|
4
|
/
|
Domed
|
8*Φ14
|
4*Φ14+3*Φ13
|
11.7
|
|
|
GT60Sandvik
|
Flat Triangle Face
|
102
|
225
|
3
|
/
|
Domed
|
9*Φ13
|
4*Φ14+3*Φ13
|
10
|
|
Flat Triangle Face
|
115
|
225 | 3 |
/
|
Domed
|
9*Φ14
|
8*Φ14
|
8
|
|
|
Flat Triangle Face
|
127
|
25 | 3 |
/
|
Domed
|
8*Φ14
|
9*Φ16
|
13.9
|
|
|
Flat Triangle Face
|
140
|
225 | 3 |
/
|
Domed
|
8*Φ14
|
9*Φ16
|
17.4
|
|
|
EL60
|
Center Drop Face
|
102
|
200 | 3 |
/
|
Domed
|
9*Φ14
|
7*Φ13
|
6.5
|
|
Center Drop Face
|
115
|
200 | 4 |
/
|
Domed
|
8*Φ14
|
4*Φ14+2*Φ13
|
9
|
|
|
Center Drop Face
|
127
|
205 | 4 |
/
|
Domed
|
8*Φ14
|
4*Φ14+3*Φ13
|
12
|
|
|
ST68
|
Center Drop Face
|
102
|
185 | 4 |
/
|
Domed
|
8*Φ14
|
4*Φ13+2*Φ12
|
6.1
|
|
Center Drop Face
|
115
|
185 | 4 |
/
|
Domed
|
8*Φ14
|
4*Φ14+2*Φ13
|
8.4
|
|
|
Center Drop Face
|
127
|
190 | 4 |
/
|
Domed
|
8*Φ14
|
4*Φ14+3*Φ13
|
11.4
|
|
|
Center Drop Face
|
140
|
190 | 4 |
/
|
Domed
|
8*Φ16
|
4*Φ14+3*Φ13
|
14.3
|
|
|
T45 Sandvik
|
Triangle Face
|
89
|
170 | 4 |
/
|
Domed
|
8*Φ13
|
5*Φ13
|
5
|
|
Flat Triangle Face
|
102
|
175 | 3 |
/
|
Domed
|
9*Φ13
|
9*Φ11
|
7.25
|
|
|
Flat Triangle Face
|
115
|
175 | 3 |
/
|
Domed
|
9*Φ14
|
10*Φ12
|
9.5
|
|
|
T51 Sandvik
|
Flat Triangle Face
|
102
|
185 | 3 |
/
|
Domed
|
9*Φ13
|
9*Φ11
|
7.5
|
|
Flat Triangle Face
|
115
|
185 | 3 |
/
|
Domed
|
9*Φ14
|
10*Φ12
|
10
|
|
|
Flat Triangle Face
|
127
|
185 | 3 |
/
|
Domed
|
9*Φ14
|
10*Φ13
|
12.8
|
