Mining underground has always been a tough business. And nowadays even more so, as it is increasingly required to be ‘greener’ while at the same time becoming more productive. The underground mining truck is the centerpiece of this development. The trucks are designed to haul huge amounts of material in narrow tunnels and often in bad weather. However, there are ways in which a more ‘sustainable’ operation can be maintained without sacrificing performance. New designs and new choices have to be made.
Modern underground trucks and their contribution to sustainable mining practices. In this article we will outline options, compromises and key considerations for the underground mining team.
The Push for Greener Underground Haulage
The regulations around diesel particulate matter and greenhouse gas emissions for use at mines worldwide are becoming increasingly stringent. In addition to complying with such regulations, many companies are looking to reduce their environmental footprint in order to meet their ESG targets and attract future talent who are increasingly aware of the impact that their employer has on the environment. In this sense, although diesel trucks still account for the vast majority of new mine trucks, they are increasingly equipped with features to reduce their footprint.
A mid-tier gold producer in Western Australia has begun to incorporate lower emission equipment into its mobile fleet over the last 12 months. The operator reported cost savings in terms of ventilation as well as improved underground air quality. This improvement was particularly noticeable during long shifts.
Key Features of Eco-Friendly Underground Mining Trucks
Modern trucks focus on several issues to make them more sustainable.
Low-Emission Engines: Most current models are equipped with modern diesel engines with catalytic converters. Some examples for such machines are equipped with state-of-the-art combustion technology. The four-wheel drive towing vehicle ZDT210 e.g. is equipped with a water-cooled low-pollution engine by Deutz. It is suitable for underground operation and provides the necessary power for a 10 ton load.
Efficient Power Delivery: Hydro-mechanical transmissions with matching components to optimize fuel consumption. Four wheel drive with sufficient torque to pull a ramp load efficiently without excess fuel consumption. Idling time and hill top cruising speed reduced significantly in mining operations.
Design for Lower Impact: Our machines have been designed with Lower Impact in mind. Small turning radius and compact dimensions enable less excavation for the tunnel over time. Stronger frames & better weight distribution to extend tire & component life reducing waste. Some sites now even monitor total material moved per liter of fuel as an important metric.
Operator and Site Benefits: New cabs are quieter and have smoother operating functions which reduce operator fatigue. New lighting and improved visibility increases site safety and indirectly supports sustainability by avoiding accidents and downtime.
Real-World Performance Gains
Take this copper operation based in South America for example. They were operating 5-ton to 10-ton units, and upgraded to some of the newer Underground Mining Trucks that are low in emissions. On average, they have achieved 12-18% reduction in fuel consumption, and notably fewer unscheduled maintenance actions due to features such as improved cooling and better filtration.
For mines that operate in an environment with stringent air quality controls but don’t have the budget to implement large ventilation shutdowns to improve air quality, these units allow the mine to remain in compliance. One superintendent noted the improvement in cab air quality allowed him to recruit operators for his fleet of trucks.
Challenges in Going Green Underground
Transitioning is hard and right now, the promise of battery-electric trucks may not be enough to overcome the lack of charging stations at many of the older mines. Also, Hydrogen trucks in the form of fuel cell trucks have big problems with storage and safety in very confined working places. Right now, for most of the mines and workings mentioned above, the best transition step will be to greatly improve the diesel trucks they currently have.
Cost is still a concern, with some higher spec ‘eco-friendly’ models carrying large initial prices, though lower running costs and longer life pay off over time.
How to Choose the Right Truck for Your Operation
First, we need to know the dimensions of the tunnel and the corresponding haul roads. For medium-size cross-cuts, the ZDT210 is the ideal machine. It has a payload of 10 tons, a bucket volume of 5m³ and an extremely small turning radius. This is achieved by the central articulation and the hydraulic steering.
Look for:
- Engines with proven underground certifications
- Strong braking systems for safety on grades
- Easy service access to reduce downtime
- Good parts availability from the manufacturer
Testing in real mine conditions leads to fewer very expensive mistakes.
Comparison of Underground Truck Approaches
| Aspect | Traditional Diesel | Modern Low-Emission Models |
| Fuel Efficiency | Baseline | 10-20% better |
| Emissions | Higher particulates | Reduced with after-treatment |
| Maintenance Intervals | Shorter | Often longer |
| Noise & Heat | Noticeable | Improved cab comfort |
| Initial Cost | Lower | Higher |
| Long-term Value | Good for basic work | Better in regulated sites |
Maintenance Practices That Support Sustainability
Extending the life of the equipment and preventing waste by proper care. Regular changing of filters, correct tyre pressure and scheduled hydraulic check-up. Some operators use oil analysis to extend the time that they can use their fluids instead of changing them on fixed time basis.
QINGDAO ZONGDA MACHINERY CO., LTD is a real mining equipment manufacturer with great deal of mining experiences in design of the equipment. The company was established by several experienced people in mining exploration and operations about ten years ago. With their great experiences and knowledge in mining, the company always listens to mining operators’ requirements and builds a variety of underground mining equipment including trackless loaders, trucks and other mining support equipment, which can operate stably and efficiently in tough underground mines.
Durability, operator comfort and easy maintenance – that’s what the ZDT210 Underground Mining Truck by ZONGDA stands for. The sturdy vehicle is equipped with reliable components, such as Deutz engines and transmissions by Dana, and safety-relevant details. Thanks to its high reliability, the trucks by the Qingdao-based manufacturer are very popular among customers. ZONGDA trucks are designed for real tunnel operations. The manufacturer unites strong manufacturing performance with practical technical service support, thus being the right partner for the operations requiring trucks that deliver high performance while keeping costs at a good level in the long run.
Conclusion
Underground Mining Trucks designed with eco-friendly features in mind represent the next step in Underground Mining. New designs and innovative technologies for cleaner engines provide mines with the opportunity to reduce their environmental footprint without compromising on productivity. There is no overnight change; but, by starting to look at options today, mines can reap the rewards of reduced costs, improved compliance with regulations, and a happier workforce in the long term.
Selecting the correct model of truck for your specific set of mine conditions is crucial, but the key message here is that improved efficiency coupled with lower emissions is now a reality for the majority of mines out there.
FAQs
What makes a modern Underground Mining Truck more eco-friendly?
Advanced engines with after-treatment, better fuel efficiency, and designs that reduce unnecessary excavation all contribute to a smaller environmental footprint.
Are diesel-powered Underground Mining Trucks sustainable?
Yes. There are many models currently on the market, like the ZDT210 with low pollution engine and efficient operation to reduce emissions and consumption compared to previous models.
How do eco-friendly trucks affect operating costs?
They often deliver savings through lower fuel consumption, longer component life, and reduced ventilation needs, even if the purchase price is higher.
What Underground Mining Truck size is suitable for medium size tunnels?
Medium size tunnels are typically serviced by a 10-ton payload size truck with compact dimensions and good maneuverability such as the ZDT210 Underground Mining Truck.
What should mines look for when upgrading to greener Underground Mining Trucks?
Focus on engine certifications, total cost of ownership, parts support, and real performance in your tunnel conditions rather than just headline specs.
