High pressure grinding roll (HPGR) is a kind of advanced grinding equipment developed by Germany scientists in the 1980s.It was popularized soon in USA, German, Russian, Brazil, Chile，Australia and other advanced industrial counties because of simple structure, high production efficiency, environmental protection and energy-saving and advanced working principle
China introduced the manufacturing technology of HPGR from a Germany Company. It was firstly applied in the grinding of cement clinker which achieved obvious effects. So, the machine was widely promoted and applied in the cerment and metallgical industries.
Wear parts of HPGR is mainly the Roller with Cemented Carbide Studs( or named Carbide Pins or Carbide Buttons).Tungsten carbide studs (or Carbide Buttons, Pins) have high toughenss, high hardness and excellent wear-resistant performance So, the tool life of roller can be extended effectively.
In order to meet the increasinly high demand of the market and win more market shares for our carbide HPGR Stud, we Have been cooperating with the end users closely and have developed many grade for different working conditions. These Carbide Stud are very Popular among our clients both domestic and overseas market.
| Type | Diameter | Height | R | Chamfer | Reference Drawing. | |
| R-0820 | 8 | 20 | 4 | R1.0 |  |  |
| R-1020 | 10 | 20 | 5 | R1.5 | ||
| R-1022 | 10 | 22 | 5 | R1.5 | ||
| R-1635 | 16 | 35 | 8 | R2 | ||
| R-1640 | 16 | 40 | 8 | R2 | ||
| R-1645 | 16 | 45 | 8 | R2 | ||
| R-1655 | 16 | 55 | 8 | R2 | ||
| R-2020 | 20 | 20 | 8 | R5.0 | ||
| R-2035 | 20 | 35 | 10 | R5.0 | ||
| R-2040 | 20 | 40 | 10 | R5.0 | ||
| R-2045 | 20 | 45 | 10 | R5.0 | ||
The size and shapes of the Carbide HPGR Studs can be custom-made as per Drawings
| Recommended Grades for Carbide HPGR Studs (Pins, Buttons) | ||||||
| GRADE | Binder Content | Density | Hardness | TRS | Properties and Application | |
| Co % | g/cc | HRA | N/mm2 | |||
| RD15C | 14.8~15.2 | 13.9~14.1 | 86.5 | >2800 | Good wear and impact resistance, for Iron Ore Crushing. | |
| RD16C | 15.8~16.2 | 13.8~14.0 | 86 | >2900 | Good impact resistance, for Hard Ore Crushing, versatile application | |
| RD20C | 19.8~20.2 | 13.4~13.6 | 85 | >2800 | Very high impact resistance, used for very hard Ore Crushing | |
** the grade can be choosed as per the Client's sepcific requirement.
