The OTR tire is mainly used in various giant engineering vehicles in the mine, including excavators, scrapers, graders, large dump trucks, tippers and other engineering machinery. Their common feature is that they have heavy loads and poor service conditions. This puts forward higher quality requirements for the steel cord as its main framework material.
| Construction | Lay Length(mm) | Lay Direction | Wire Diameter(mm) | Cord Diameter(mm) | Linear Density(g/m) | Breaking Force(N) | Breaking Force of Weld | Breaking Elongatio(%) | Partial Load Elongation(PLE%) | Copper Content(Cu%) | Plating Weight(g/Kg) | |
| Warning Limit | Inner Control Limit | Inner Control Limit | ||||||||||
| 7x(3+9+15x0.245) +0.245HT | 6.3±0.32/ 12.5±0.63/ 18±0.9/ 55±2.75/ 5.0±0.25 | ZZZSZ | 0.245±0.01 0.245±0.01 | 4.84±0.24 Internal Standard:≤4.95 | 73.9±3.69 | - | ≥22300 | - | - | - | 63.5±2.5 | 4.0±1.0 |
| 7x (3+9x0.245) +0.20HT | 6.3±0.315/ 12.5±0.625/ 6.3±0.3/ 12.5±0.625/ 28±1.4/ 5±0.25 | ZZSSZS | 0.245±0.01 0.20±0.01 | 3.30±0.17 Internal Standard:≤3.38 | 33.07±1.16 | - | ≥9000 | - | - | - | 63.5±2.5 | 3.5±0.7 |
| 7x (3+9x0.245)HT | 6.3±0.6/ 12.5±1.2/ 6.3±0.6/ 12.5±1.2/ 29.0±2.9 | ZZSSZ | 0.245±0.01 | 3.10±0.150 | 32.52±1.630 | - | ≥9000 | - | - | - | 63.5±2.5 | 4.0±1.0 |
| 7x (3+9+15x0.175) +0.20HT | 5±0.25/ 10±0.5/ 16±0.8/ 5±0.25/ 10±0.5/ 16±0.8/ 38±1.9/ 5±0.25 | SSSZZZSZ | 0.175±0.01 0.2±0.01 | 3.60±0.18 Internal Standard: ≤3.69" | 37.5±1.31 | - | ≥11470 | - | - | - | 63.5±2.5 | 4.9±1.0 |
| 4x6x0.25HE | 5.7/9.5±5% | SS | 0.25±0.006 | 1.82±0.11 | 10.17±0.51 | ≥2510 | ≥2485 | ≥994 | ≥4.0 | - | 63.5±2.5 | 3.4±0.7 |
| 7x(3+9+15x0.22) +0.20HT | 6.3±0.315/ 12.5±0.625/ 18±0.9/ 6.3±0.315/ 12.5±0.625/ 18±0.9/ 48±2.4/ 5±0.25 | SSSZZZSZ | 0.22±0.01 0.20±0.01 | 4.42±0.22 Internal Standard:≤4.53 | 59.16±2.07 | - | ≥17955 | - | - | - | 63.5±2.5 | 3.9±0.8 |
| 7x 7x0.22+0.15HT | 12.5±0.625/ 20±1/ 5±0.25 | ZSZS | 0.22±0.01 0.15±0.01 | 2.24±0.11 Internal Standard:≤2.30 | 15.2±0.64 | - | ≥5120 | - | - | - | 63.5±2.5 | 3.9±0.8 |
| 7x (3+9x0.30) +0.20HT | 12.5±0.6/ 18±0.9/ 12.5±0.625/ 18±0.9/ 32±1.6/ 5±0.25 | ZZSSZS | 0.30±0.01 0.20±0.01 | 4.11±0.21 Internal Standard:≤4.21 | 49.27±1.72 | - | ≥15700 | - | - | - | 63.5±2.5 | 3.4±0.6 |