Trojan Tire
Underground Mines
Underground Potash Mine – Western Canada
Machine Type - Scoop/Loader LHD (4 yd.)
Tire Size & Type - 17.5R25 (14.00) – Radial Tire
Site Conditions - Smooth ground conditions. Machines travelling long distances and at high speeds.
Tire Problem
Mine uses the scoop as a load-and-carry vehicle. Load and carry distances up to 25km (15mi.) and high speeds up to 15 kmph (9 mph). Solid tires and polyurethane (foam) filled tires were not able to withstand the heat generated by the long runs and high speeds. Solid Tires would de-laminate and foam fill would revert to liquid. These tire problems had a significant impact on mine production and tire cost per hour.
Trojan Solution
Installed Trojan SO Soft Core in the 17.5R25 radial tire
Success / Outcome
Trojan SO Soft Core has made it possible for the mine to wear out their tires and reuse the Soft Core. The tire wear-out, Soft Core reuse and longer running hours has sharply decreased the customers tire and labor costs as well as significantly increased production. Trojan Soft Core has allowed the mine to achieve by far the lowest cost per hour versus any competing product.
Underground Hard Rock Gold Mine ‐ Central Canada
Machine Type - Scoop/Loader LHD (1.5 yd.)
Tire Size & Type - 9.50-20 (7.50) L5S Bias Tire
Site Conditions - Harsh underground mining conditions with rough floor including sharp rock debris, water and heat
Tire Problem
Site conditions often lead to cutting, penetrations and tearing. L5S bias tires with polyurethane (foam fill) were destroyed by underfoot conditions or urethane would revert to liquid due to heat and load which increased tire spend. Frequent underground tire changes incurred significant labor costs and lost production. On average a urethane filled L5S would only last 200 hours.
Trojan Solution
Installed Trojan HD Soft Core into a L5S bias tire.
Success / Outcome
Trojan Soft Core increased running hours by up to 300% per tire. This has dramatically decreased the customer tire and labor costs as well as increased production. The HD Soft Core has averaged 4 uses. This combined with the 300% increase in tire life has allowed the mine to achieve by far its lowest cost per hour versus any competing product.
Underground Coal Mine – Southeast US
Machine Type - Shuttle Car
Tire Size & Type - 14.00-20 Bias Tire
Site Conditions
Harsh underground mining condition with rough floors, steep grades, big ribs and wet conditions.
Tire Problem
Tires are up to 25% overloaded. Tires with polyurethane would start to break down and spin on the wheel, especially when on the grades. This would result in tires usually being changed with 50% tread remaining. Tires would also rib prematurely, destroying the tire and polyurethane fill.
Trojan Solution
Installed Trojan HD Soft Core in the bias tire
Success / Outcome
In most cases, the mine is now wearing out their tires. Trojan has increased the mines tire life by as much as 300-400%. Trojan has also eliminated spinning on wheels. Also, when they do rib a tire, the mine is now able to reuse the Trojan Soft Core – saving huge money!
Source: https://trojantire.com/examples/#underground-mines