Underground Coal Mine – Battery Hauler – Southeast US

Application Type
Underground Coal Mine – Southeast US

Machine Type
Battery Hauler

Tire Size & Type
Battery end 10.00-15 dual bias tire
Trailer end 14.50-15 bias tire

Site Conditions
Low seam coal mine with wet uneven floor sharp rocky bottom. Mine is running a 50% payload reject rate.

Tire Problem
The bias tires filled with polyurethane were below capacity by 50%, resulting in poor performance with just 60 days service life on a tire!  By overstretching the bias casing with polyurethane fill, it caused the tire to crown making it susceptible to impact breaks on the sharp rocky floors. This was a very high cost in tire spend for the mine, plus the additional losses in machine availability and downtime due to premature tire fill failure and therefore productivity was low.

Trojan Solution
Changed to radial tire with Trojan HD Soft Core.

Success / Outcome
Because the Trojan HD Soft Core increases the load carrying capacity of the radial tires, the mine was able to wear out the vast majority of their tires and improve service life by 500% achieving on average 300 days service on a set of tires. Huge gains in productivity and machine availability were realized because the Soft Core filled radial tires were at optimum performance. Soft Core is also reusable, and the mine is saving money and has reduced tire costs substantially.