Products name: Carbide Cross bits for rock drilling
(1)Button bit taper angle: 4°,4°46″,6°,7°,11°,12°
(2)Models:chisel bit/cross bit/button bit
(3)Diam:20-45 mm
(4)Button bit shape:spherical/parabolic
(5)Socket inside diameter:15/19/22/25(mm)
(6)Material and process:high quality alloy steel bar and tungsten carbides, through heat treatment
Products technical data:
1.Tapered chisel bit
Widely used in drilling holes with depth less than 5 meters and diameter ranged in 20-45 mm by light-duty rock drill, like Y6.
| Description | Diameter | Length | Water hole | |
Taper degree a=4°,6°,7°,11°,12°
| mm | mm | 2 | |
| 20 | 65 | 2 | ||
| 23 | 65 | 2 | ||
| 25 | 69 | 2 | ||
| 28 | 60 | 2 | ||
| 30 | 55 88 | 2 | ||
| 32 | 55 64 71 80 | 2 | ||
| 34 | 71 80 | 2 | ||
| 36 | 74 | 2 | ||
| 38 | 74 | 2 | ||
| 40 | 74 | 2 | ||
| 42 | 74 | 2 | ||
| 45 | 74 | 2 | ||
2.Tapered cross bit
Used under any rock drilling condition and mainly used for hard or very hard rock formation because of it's comprehensive adaptability. Compared with taper chisel bits, taper cross bits have a better drilling performance because carbide tips on cross bits doubled.
| Description | Diameter | Length | Weight | |
Taper degree a=6 °,7°,11°,12° Socket inside d=19,22,25mm
| mm | mm | kg | |
| 28 | 71 80 | 0.19 | ||
| 29 | 71 80 | 0.2 | ||
| 30 | 50 67 71 80 | 0.3 | ||
| 32 | 50 67 71 80 | 0.3 | ||
| 33 | 71 80 | 0.32 | ||
| 34 | 67 71 80 | 0.34 | ||
| 35 | 67 71 80 | 0.35 | ||
| 36 | 71 80 | 0.36 | ||
| 38 | 67 71 80 | 0.42 | ||
| 40 | 71 80 | 0.43 | ||
| 41 | 71 | 0.45 | ||
| 42 | 69 80 | 0.46 | ||
| 44 | 80 | 0.47 | ||
| 45 | 80 | 0.5 | ||
3.Tapered Button Bits
Comparing with tapered chisel bits and tapered cross bits, button bits has higher technology, much longer primary drilling time and higher drilling efficiency. According to the tungsten carbide insert, tapered button bits can be divided into the types of hemispherical, conical and parabolic button, etc.
Description | Diameter | Length | No. of button | Weight |
Taper Angle a=4°46″,6 °,7°,11°,12° Socket inside d=19,22,25mm
| mm | mm | pcs | kg |
28 | 50 | 4 | 0.2 | |
29 | 50 | 4 5 6 7 | 0.2 | |
30 | 50 80 | 5 6 7 8 | 0.2 0.3 | |
32 | 50 55 71 80 | 6 7 8 9 | 0.2 0.22 0.3 | |
33 | 50 55 71 80 | 6 7 9 | 0.2 0.3 0.36 | |
34 | 50 55 | 7 8 | 0.22 0.3 | |
35 | 55 71 80 | 4 5 6 7 | 0.22 0.3 0.37 | |
36 | 50 55 | 7 | 0.3 0.35 | |
37 | 55 | 4 6 7 | 0.3 | |
38 | 50 55 | 4 6 7 | 0.25 0.35 | |
40 | 50 55 | 7 | 0.35 | |
41 | 50 55 71 | 4 5 | 0.35 | |
42 | 50 | 6 7 | 0.4 | |
45 | 50 55 71 | 6 7 8 9 | 0.5 |
