These tungsten carbide button bits for coal mining are mainly used for coal mining, coal cutting picks, electric coal drill bits, coal mining cutter picks, roadway excavation, rotary drilling for pile hole, pavement milling. Such as Bob’s bit, Rotary bit, Digger button bit and so on.
Specifications of Tungsten Carbide Button Bits for Coal Mining:
| Button | Type | Dimensions(mm) | |
| Diameter | Height | ||
 | 2000250JIS0A | 20 | 25 |
| 2200350JIS0A | 22 | 35 | |
| 2480330JD0A | 24.8 | 33 | |
| 2500350JD1A | 25 | 35 | |
| 2650380JD1A | 26.5 | 38 | |
| Button | Type | Dimensions(mm) | |
| Diameter | Height | ||
 | 2000250JIS0B | 20 | 25 |
| 2200350JIS0B | 22 | 35 | |
| 2480330JD0B | 24.8 | 33 | |
| 2500350JD1B | 25 | 35 | |
| 2650380JD1B | 26.5 | 38 | |
| Button | Type | Dimensions(mm) | |
| Diameter | Height | ||
 | 1800290MS0A | 18 | 29 |
| 1900300MS0A | 19 | 30 | |
| 2000250MD0A | 20 | 25 | |
| 2500350MD0A | 25 | 35 | |
Grade of Tungsten Carbide Button Bits for Coal Mining:
| Grade | Density(g/cm3) | Hardness(HRA) | T.R.S(Mpa) | Application |
| JZ10 | 14.5 | 87.5 | 2400 | Suitable for welding coal mining tooth in coal mining machine,drilling on mid-soft rock formation. |
| JZ10G | 14.5 | 86.0 | 2480 | Suitable for welding coal mining tooth in tunnel excavation, drilling hard rock formation. |
| JZ10S | 14.5 | 86.5 | 2600 | Suitable for welding coal mining tooth in tunnel excavation, drilling on extra hard rock formation or complexgeological structure rock formation. |
| JZ08G | 14.72 | 86.8 | 2550 | Suitable for welding alloys for picks, and the drilling rock is hard rock. |
| JZ08S | 14.72 | 86.8 | 2600 | Suitable for alloys for welding picks, and the drilling rock is hard rock layer and rock layer with large sand content and complex structure, which can significantly improve the service life. |
