Underground mining trucks move ore and waste through tight, low-clearance workings, often up long ramps, in heat, dust and water. The right truck matches the size of your headings, the loaders that fill it and the haul profile it has to climb every shift.
At Tim McDowell Equipment, we sell and rent underground mining equipment, and our licensed heavy-duty mechanics maintain the machines in our fleet. This guide compares underground haul trucks by payload, powertrain and durability and explains what to check before you buy or rent.
What Makes Underground Mining Trucks Different?
Underground dump trucks are built for conditions that surface trucks never see. They are low and narrow to fit through drifts and ramps, articulated to turn in tight spaces and designed to climb steep grades with a full load.
Every underground mining truck is a balance of three things: how much it carries, how well it climbs and how long it lasts between rebuilds.
Payload: Match the Truck to Your Heading and Loader
Payload decides how much material moves per trip, but a bigger truck only helps if it fits your mine.
Common payload classes across leading manufacturers include:
| Manufacturer | Example models | Payload class |
|---|---|---|
| Caterpillar | AD30, AD45, AD63 | Around 30 to 63 tonnes |
| Epiroc | Minetruck range, including MT65 S | Up to 65 tonnes |
| Sandvik | Toro range, including TH663i | Up to 63 tonnes |
When comparing payload, also check:
- Truck width and height against your drift dimensions
- Turning radius for your intersections and remucks
- Dump height and box design
- How many loader passes it takes to fill the truck
The loader and truck should work as a pair. Review our scooptrams and muckers when planning pass counts and cycle times.
Powertrain: Diesel, Battery Electric and Ramp Performance
Engine power and torque determine how well a truck climbs a loaded ramp. As an example, the Cat AD63 uses a Cat C27 engine rated at 593 kW (795 hp).
When comparing powertrains, look at:
- Engine power and torque at the grade you haul on
- Transmission type and gear ratios
- Emissions package and its effect on ventilation needs
- Heat output in hot or deep workings
- Retarder and braking performance on downhill hauls
Battery electric mining trucks are now available from major manufacturers, including Epiroc and Sandvik. They remove diesel exhaust from the workings and can reduce ventilation and heat load, but they require charging or battery-swap infrastructure. Diesel trucks remain the most common choice where that infrastructure is not in place.
Durability: What Keeps a Truck Working
Underground haul trucks work hard, and durability shows up in uptime and rebuild costs. Consider:
- Frame and box design: Wear-resistant materials in the dump box extend its life under heavy, abrasive loads.
- Component access: Easy access to service points shortens maintenance time.
- Rebuild potential: Many underground trucks are designed so the frame and major components can be rebuilt more than once.
- Parts availability: Local access to parts and trained technicians reduces downtime.
A well-maintained truck with a documented rebuild history can deliver years of additional service.
Automation and Monitoring
Leading manufacturers now offer automation and remote monitoring on underground trucks. Epiroc and Sandvik both offer systems that allow remote or autonomous operation and fleet monitoring. These tools can improve safety and consistency, but they depend on mine infrastructure and training.
Mining Truck Comparison: What to Check Before Buying Used
A used underground mining truck can be a strong investment when its condition matches your mine plan. Before you buy or rent, check:
- Engine condition, hours and emissions equipment
- Transmission, torque converter and axles
- Articulation joint, pins and bushings
- Box, frame and welds for cracks or repairs
- Brakes, retarder and steering
- Tires and rims
- Fire suppression, ROPS/FOPS and cab condition
- Service records and rebuild history
Plan the Truck Around the Haul Profile
Two trucks with the same payload can perform very differently on the same mine. Before choosing, map the haul:
- Distance from loading point to dump or ore pass
- Ramp length and grade
- Number of loaded climbs per shift
- Passing bays and traffic with other equipment
- Road conditions, water and maintenance of the drift
A long, steep ramp favours a truck with strong torque and reliable retarding. A short, flat haul may favour a smaller, more manoeuvrable truck that cycles faster.
Rent or Buy an Underground Haul Truck
Rent when you need extra haulage for a development push, a production ramp-up or cover while a truck is being rebuilt. Buy when the mine plan supports steady, long-term use. Our guide on short-term vs long-term equipment rentals explains how rental length affects cost.
Safety and Compliance in Ontario
In Ontario, underground mining equipment must meet the requirements of Regulation 854, Mines and Mining Plants, under the Occupational Health and Safety Act. Confirm that any truck you bring on site meets your mine’s safety standards and site-specific requirements.
Find the Right Underground Mining Truck With TME
At Tim McDowell Equipment, we have supplied underground mining equipment since 2005, from our yard in Val Caron, Ontario, to customers across Canada and international markets.
Browse our current underground haulage trucks for sale and rent, or send us your heading dimensions, required payload, haul profile, loader fleet and project location. We will compare your requirements with our current inventory and help you choose the right truck.