PtxMD51 is a L-5 type, extra deep tread, all-steel radial tire produced for underground mining loaders, underground mining trucks. With its special tread compound, and all-steel carcass structure it provides superior resistance against cuts and tears.

With its special tread compound, it provides superior resistance against cuts and chips.

With its strong structure featuring steel belts and a radial steel carcass, it provides superior impact resistance.

Its solid center structure provides grip and resistance against cuts, while the grooves on the shoulders offer superior traction.
| Code | Tire Size | Star Rating | TT/TL | Load / Speed Index | TRA Code | RIM | INFLATED DIMENSIONS (NO LOAD) | INFLATED DIMENSIONS (W/LOAD) | TREAD DEPTH (mm) | INFLATING PRESSURE (psi) | LOAD CAPACITY * (kg) | ||||||||||||
| RECOM. (inches) | PERMITTED (inches) | OUTER DIAMETER (mm) | SECTION WIDTH (mm) | STATIC LOADED RADIUS (mm) | DYNAMIC RADIUS CIRCLE (mm) | Static | 1 Km/H | 5 Km/H | 10 Km/H | 15 Km/H | 20 Km/H | 25 Km/H | 30 Km/H | 35 Km/H | 40 Km/H | ||||||||
| 70520 | 9.00R20 | ** | TT | 159A2 | L-5 | 7.00 T | - | 1047 | 275 | 477 | 3000 | 52 | 120 | 7000 | 5688 | 4988 | 4375 | 3806 | 3675 | 3500 | 3369 | 3238 | 3063 |
| 70540 | 12.00R20 | ** | TT | 171A2 | L-5 | 8.50 T | - | 1171 | 334 | 528 | 3316 | 58,5 | 120 | 9840 | 7995 | 7011 | 6150 | 5351 | 5166 | 4920 | 4735,5 | 4551 | 4305 |