Zhuzhou Carbide 18/25mm Wear Resistant Coal Mining Tungsten Carbide Buttons
Standard Specifications:
| Dimensions(mm) | Density (g/cm3) | Hardness (HRA) | TRS(Mpa) | |
| Diameter | Height | |||
| 20 | 25 | 14.50 | 87.50 | 2400 |
| 22 | 35 | 14.50 | 86.00 | 2480 |
| 24.8 | 33 | 14.50 | 86.50 | 2600 |
| 25 | 35 | |||
| 26.5 | 38 | |||
The Coal Mining Tungsten Carbide Buttons can be customized according to your drawing to match your drilling tools, too.
It has complex application environment, engaged in underground coal mining with unclear geological components, and high-power equipment such as propulsion force and shear force, which requires the tungsten carbide buttons to have good impact resistance, heat resistance and wear resistance.
Conical buttons for medium and low pressure DTH drilling
| Conical buttons for medium and low pressure DTH drilling | ||||||
| Type | Dimension | |||||
| D | H | SR | 0° | a° | o p | |
| SZ12X18A | 12.35 | 18 | 4.8 | 55 | 20 | 28.0 |
| SZ12*18B | 12.35 | 18 | 4.0 | 55 | 20 | 27.0 |
| SZ12*18 | 12.35 | 18 | 4.5 | 53/55 | 20 | 20.0 |
| SZ13*18 | 13.35 | 18 | 4.5 | 53/55 | 20 | 20.0 |
| SZ13*19A | 13.35 | 19 | 4.5 | 55 | 20 | 28.0 |
| SZ13*19B | 13.35 | 19 | 5.0 | 55 | 20 | 27.0 |
| SZ14*19 | 14.35 | 19 | 5.0 | 53/55 | 20 | 20.0 |
| SZ14*22A | 14.35 | 22 | 5.0 | 55 | 20 | 14.5 |
| Spherical buttons for shield machine hob | |||||
| Type | Dimension | ||||
| D | H | SR | a° | P° | |
| ZQ16*23KP | 16.25 | 23 | 9 | 18 | 1.8 |
| ZQ16*21KP | 16.25 | 21 | 9 | 18 | 1.8 |
Applications:
Polyconical, Parabolic and Mushroom Tungsten carbide buttons, are the general buttons shapes for coal mining series.
Suitable for welding coal mining, coal mining machine in mid-soft rock formation, tunnel excavation in hard rock formation, drilling on extra hard rock formation or tunnel excavation in complicated rock formation.
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