TPMS for Underground Dump Trucks
Underground mining brings a set of tire challenges that surface operations never face: confined drives, low headroom, tight ramps and long shifts spent hauling ore or waste from the working face to the shaft or ore pass. Underground Dump Trucks are purpose-built to work in this environment, and their tires are one of the few components that can bring the whole operation to a halt if they fail underground. Here we look at how TPMS for Underground Dump Trucks supports safety and uptime in this uniquely demanding setting.
What is an Underground Dump Truck?
An Underground Dump Truck (sometimes called an underground haul truck or mine truck) is a low-profile, articulated or rigid-frame hauler engineered to fit through tunnels and drives with restricted height and width. Compared with a surface Haul Truck, it has a lower centre of gravity, a compact wheelbase and a cab designed for extended underground visibility and ventilation.
Manufacturers active in this segment include:
- Sandvik
- Epiroc
- Caterpillar (CAT)
- Komatsu
Payloads typically range from around 20 to 65 tonnes, sized to match the drive dimensions and production targets of each mine. These trucks work continuous haul cycles from the stope or drawpoint to surface or to an underground crusher, often 24 hours a day.
The operating challenge
Every metre of tunnel in an underground mine is expensive to develop, so drives are cut as tight as the equipment allows. That means Underground Dump Trucks operate with far less clearance, worse ventilation, and harder access for recovery than any surface vehicle. If a truck fails in a single-lane drive, it can block the entire haulage route until it’s cleared – a very different problem from a breakdown on an open pit bench.
Tire risks specific to Underground Dump Trucks
Typical causes of tire failure underground include:
- Heat build-up in confined, poorly ventilated drives
- Sidewall and tread damage from sharp broken rock on tunnel floors
- Under-inflation, which is harder to spot visually in low underground lighting
- Overloading on steep ramps, where traction demands are highest
Because recovery access is limited underground, even a routine tire failure can take far longer to resolve than the same failure on a surface site, and it puts personnel at risk in a confined space.
How TPMS protects Underground Dump Truck tires
A TPMS for Underground Dump Trucks gives operators and control rooms continuous, real-time visibility of tire pressure and temperature, even where poor lighting and dust would make a visual check unreliable. Early warning of a developing issue means the truck can be brought out of the drive and repaired in a safe, accessible bay, rather than risk a failure at depth.
Benefits of TPMS underground
- Reduced risk of a tire failure blocking a single-access haul route
- Better safety for operators and personnel working in confined drives
- Longer tire life despite heat and poor ventilation underground
- Improved production reliability on 24-hour haulage cycles
- A complete, time-stamped tire history for each truck, supporting maintenance planning
Fleet visibility and data ownership
Underground Dump Truck tire data is transmitted to a cloud-based portal as soon as the truck is within network range, giving surface control rooms and maintenance teams real-time alerts on any tire outside its safe operating window. This data, and the audit trail it builds, should remain owned and controlled by the mine operator.
Choosing the right TPMS for underground haulage
Underground Dump Trucks operate in heat, dust and confined space that few other OTR vehicles face, so the TPMS must be robust, reliable in areas of limited signal, and simple to fit within the constraints of an underground workshop. TMS® supplies TPMS for Underground Dump Trucks and other OTR vehicles, purpose-built for extreme operating environments.
Request a free trial to see how TMS® can improve safety and uptime on your underground haulage fleet.