| Size | Load Index / Speed Symbol | Standard Rim | Tread Depth(mm) | Overall Diameter(mm) | Section Width(mm) |
| 24.00R49 | 215B | 17.00/3.5 | 58 | 2531 | 653 |
| 27.00R49 | 223B | 19.50/4.0 | 63 | 2702 | 737 |
| 36.00R51 | 241B | 26.00/5.0 | 80 | 3233 | 988 |
| 40.00R57 | 250B | 29.00/6.0 | 88 | 3594 | 1097 |
JAPAN KOYOOTO TIRES CO., LTD.
Premium KT812 Heavy-Duty Radial OTR Tyre for Mining & Rigid Dump Trucks
The KT812 series is a top-tier all-steel radial solution engineered for the world’s most demanding open-pit mining operations. Designed for maximum uptime and ultra-high load capacity, it is the ideal choice for large-scale haulage equipment.
Extreme Durability: Features reinforced multi-layer steel belts on the tread section, providing industry-leading resistance to cuts, punctures, and rock damage.
Superior Impact Resistance: Built with a virtual dual-ply casing and a stronger structure to withstand heavy impacts in harsh mining terrains.
High Load Performance: Strengthened steel cords in the bead area ensure maximum stability and safety under extreme payloads.
Optimized Thermal Management: Advanced radial construction helps dissipate heat faster, extending tire life during long-distance hauling.
Global Machine Fitment: Precision-engineered for heavy-duty rigid dumpers including CAT 777/785/789, Komatsu HD785/HD985/830E, and BELAZ 75131.
| Size | Load Index / Speed Symbol | Standard Rim | Tread Depth(mm) | Overall Diameter(mm) | Section Width(mm) |
| 24.00R49 | 215B | 17.00/3.5 | 58 | 2531 | 653 |
| 27.00R49 | 223B | 19.50/4.0 | 63 | 2702 | 737 |
| 36.00R51 | 241B | 26.00/5.0 | 80 | 3233 | 988 |
| 40.00R57 | 250B | 29.00/6.0 | 88 | 3594 | 1097 |
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