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Straight bit, cross bit and button bit are widely used applied in tunneling, mining, building rock excavation and traffic and transport facilities construction.
Straight Drill Bits
GA40
is suitable for hard rock and hard rock, granite,quartzite,iron ore rock,magnetic ore, etc. with a hardness of f=15 or less.GL40 Series
is suitable for hard rock,medium hard rock, quartzite,basalt,magnetite,dense siliceous fossil,etc.with a hardness of f=18 or less.
GL40-1
increases the alloy height on the basis of GL40, increases the number of grinding,prolongs the service life,and enhances impact resistance.The product is connected to the end of H22 drill rod and the end shall be machined (small end 18×7° ) with insertion depth of 30-33mm.
Technical parameters
| Model | Diameter(mm) | High*thick | Applicable rock formation |
| Straight GA32 | Ø32 | 11*8 | F=14-15 |
| Straight GA38 | Ø38 | 13.5*10 | F=14-15 |
| Straight GA40 | Ø40 | 13.5*10 | F=14-15 |
| Straight GA40-1 | Ø40 | 13.5*10 | F=14-15 |
| ... | ... | ... | ... |
| Model | Diameter(mm) | High*thick | Applicable rock formation |
| Cross GA40 | 40 | 12*8 | F=15 |
| Cross GA42 | 42 | 12*8 | F=15 |
| Cross GA50 | 50 | 12*8 | F=15 |
| Cross GA60 | 60 | 12*8 | F=15 |
| Model | Diameter(mm) | Number of alloys | Number of water holes | Applicable rock formation | |||
| Core teeth | Side teeth | Dip angle | Positive | Side | |||
| GAD380904R | 38 | 1x8 | 3x9 | 40° | 1 | 1 | F=14-15 |
| GAD380907R | 38 | 2x7 | 5x9 | 35° | 1 | 1 | F=14-15 |
| GAD400904R | 40 | 1x9 | 3x9 | 40° | 1 | 1 | F=14-15 |
| GAD400904R | 40 | 1x9 | 3x9 | 40° | 1 | 2 | F=14-15 |
| ... | ... | ... | ... | ... | ... | ... | ... |
| Model | Diameter(mm) | Number of alloys | Number of water holes | Applicable rock formation | |||
| Core teeth | Side teeth | Dip angle | Positive | Side | |||
| 45Q40-09-R32115 | 45 | 3×8 | 6×9 | 40° | 3 | 1 | / |
| 45D40-09-R32115 | 45 | 3×8 | 6×9 | 40° | 3 | 1 | / |
| 45Q35-09-R32115 | 45 | 3×8 | 6×9 | 35° | 3 | 1 | / |
| 45D35-09-R32115 | 45 | 3×8 | 6×9 | 35° | 3 | 1 | / |
| ... | ... | ... | ... | ... | ... | ... | ... |
| Model | Diameter(mm) | Number of alloys |
Edge tooth angle |
Stoma | Weight |
Alloy tooth profile |
Head shapee |
Matching drill pipe |
|
| Side teeth | Middle teeth | ||||||||
| 89-T45 | 89 | 8×Ø12 | 8×Ø11 | 38° | 2 | 4.7kg | Parabolic tooth | Planar type | T45 |
| 41-R45 | 41 | 5×Ø10 | 2×Ø9 | 35° | / | 0.7kg | / | / | / |
| 89-T38 | 89 | 8×Ø12 | 8×Ø11 | 38° | 2 | 4.7kg | Parabolic tooth | Planar type | T38 |
| 02-R32 | 102 | 12×Ø12 | 3×Ø11 | 38° | 4 | 4.7kg | Parabolic tooth | Planar type | R32 |
| ... | ... | ... | ... | ... | ... | ... | ... | ... | ... |
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