Rajan Wilcox
Rock trucks, also known as articulated haulers, dump haulers, or articulated dump trucks (ADTs), are designed for moving large amounts of heavy material around or off of a job site. They are ideal for use on uneven terrain and unfinished construction sites. The fuel consumption of rock trucks varies depending on the model and brand. For example, the CAT 725 consumes around 11.75 gallons of fuel per hour, while the CAT 740 GC features a fuel-saving ECO mode. Bell rock trucks are also known for their fuel efficiency, with the D-series offering faster cycle times and best-in-class fuel efficiency.
| Characteristics | Values |
|---|---|
| Fuel efficiency | Varies across models, brands, and usage. For instance, the CAT 725 articulated dump truck has a fuel consumption of 11.75 gallons per hour or 94 gallons in eight hours. |
| Fuel-saving mode | Some rock trucks, such as the CAT 740 GC, incorporate a fuel-saving ECO mode. |
| Fuel efficiency guarantee | Some brands, such as Volvo, offer a Fuel Efficiency Guarantee for their rock trucks. |
| Fuel costs | Some rock trucks, like Rokbak, are designed to cut fuel costs with features such as industry-leading gear transmission. |
| Fuel usage | Some rock trucks, like Caterpillar, offer features such as CAT Product Link, which allows contractors to monitor fuel usage wirelessly. |
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What You'll Learn
Fuel efficiency of CAT 725 rock trucks
Rock trucks, also known as articulated dump trucks (ADTs), are used for moving large amounts of heavy material around or off of a job site. They are ideal for use on uneven terrain and unfinished construction sites.
Caterpillar's CAT rock trucks are known for their impressive features. The CAT 725 rock truck consumes an average of about 11.75 gallons of fuel per hour or 94 gallons in eight hours. This data was provided by a professional with 17+ years of shop and field experience with all major brands of heavy equipment and trucks. If the CAT 725 has a non-ACERT engine, the fuel consumption is about 9.4 gallons per hour.
CAT 740 GC is another rock truck by Caterpillar that incorporates fuel-saving ECO mode. The company also offers bare chassis models that provide increased customization for those looking for rock truck power without dump truck limitations.
Other companies that manufacture rock trucks include Bell, Rokbak, Volvo, and Hydrema. Bell's D-series rock trucks are known for their best-in-class fuel efficiency, while Rokbak's rock trucks are known for their industry-leading gear transmission that helps cut fuel costs.
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Fuel-saving features of CAT 740 GC rock trucks
Although I can't find specific information about how much fuel a rock truck uses, I can tell you about the CAT 740 GC rock truck, which has several fuel-saving features.
Firstly, the CAT 740 GC has a fuel-saving ECO mode. This mode is combined with an automatic retarder-control system to improve the machine's efficiency. The engine also incorporates the Cat Clean Emission Module (CEM) to meet Tier 4 Final/Stage IV emission standards. The CEM system uses Ultra-low-sulfur diesel (ULSD) fuel or up to B20 biodiesel blended with ULSD, which may contribute to fuel efficiency.
The CAT 740 GC also has a system in place to monitor fuel usage and improve efficiency. The Cat Product Link allows operators to wirelessly connect to their equipment and access valuable insights, including fuel usage, idle time, and productivity. This enables operators to make timely, fact-based decisions to maximise efficiency, improve productivity, and lower costs.
The CAT 740 GC's engine has also been designed for longevity, with reman components and machine rebuilds to maximise the use of every part and minimise waste. The volume of both the hydraulic and engine oil systems has been reduced, meaning less waste when oils are replaced. This may also contribute to fuel efficiency over time, as there is less need for frequent oil replacement.
Additionally, the CAT 740 GC has an optional automatic lubrication system, which includes alerts for low grease levels and abnormalities. This system saves time and contributes to the overall efficiency of the machine.
Overall, the CAT 740 GC rock truck incorporates several fuel-saving features, from its ECO mode to its efficient engine design and monitoring systems, which work together to optimise fuel usage and improve productivity.
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Fuel efficiency of Volvo rock trucks
Fuel efficiency is a key consideration for any business operating rock trucks, also known as articulated dump trucks (ADTs). Volvo manufactures and produces high-quality ADTs, and the company has made fuel efficiency one of its priorities.
Volvo's commitment to fuel efficiency is reflected in its exceptional Efficiency (XE) packages, which are completely customised solutions that match the vehicle and powertrain settings to the needs of the business. This involves choosing the right Volvo engine and matching it with I-Shift, and then selecting the optimum efficiency package. This can help save up to 0.2 mpg or more, which can translate to savings of up to $2,000 per year, per truck.
Volvo's Fuel Efficiency Guarantee demonstrates the company's confidence in the fuel efficiency of its ADTs. The guarantee applies to specific models of articulated haulers, excavators, and wheel loaders. If the machine's fuel efficiency does not meet the model-rated fuel efficiency levels, Volvo will reimburse a portion of the additional fuel.
Volvo's A30G haul truck has been shown to be more fuel-efficient than a leading competitor's model. In a test, the A30G consumed 11% less fuel due to its competitive weight and matched drivetrain. It also consumed 50% less fuel at idle, which is significant as articulated haulers can idle up to 30% of their total machine hours. The A30G offers a 5.6% lower cost per hour and an 8% lower cost per ton moved, despite having a higher retail price.
The Volvo A45G is another fuel-efficient model, proven to be 2% more productive than a competitor with an equal payload. It also moves more material per gallon of fuel and requires less frequent oil changes and 70% less fluid over 12,000 operating hours, reducing the total cost of ownership.
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Fuel efficiency of Hydrema rock trucks
Rock trucks, also known as articulated haulers, dump haulers, or articulated dump trucks (ADTs), are used to transport large amounts of heavy material over rough terrain. Hydrema rock trucks are known for their fuel efficiency, eco-friendly technology, and sustainability.
The Hydrema 922G series is a range of 18-ton and 20-ton dump trucks that are designed for tough jobs in the construction, mining, and forestry industries. These trucks are powered by Cummins Stage 5 engines, which provide the necessary power to handle challenging tasks while also being fuel-efficient. The 922G series also features advanced emission control systems, which help to reduce the environmental impact of the machines.
The Hydrema 922HM, a variant of the 922G model, is another 20-tonne dump truck that combines high efficiency with premium comfort and advanced safety features. It has a powerful engine and transmission system that contributes to its excellent performance. The 922HM is designed with fuel efficiency in mind, with a large 300-litre diesel tank and a 31-litre AdBlue tank integrated into the front chassis. This allows the machine to work for longer periods without needing to refuel, increasing productivity.
The Hydrema 912G series offers superior off-road performance and is highly mobile, delivering efficiency and operator comfort. The 912HM model, which is part of this series, has a powerful Cummins engine that delivers strength, reliability, and superior fuel economy. It also features advanced hydrostatic articulated steering, providing effortless manoeuvrability and precision.
Hydrema also offers a range of smaller rock trucks, such as the 707G series, which have a rated load capacity of 7 tons. These smaller trucks maximise manoeuvrability and visibility, making them ideal for crowded job sites and tight spaces.
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Fuel consumption of rock trucks by terrain type
Fuel consumption in rock trucks, also known as articulated haulers, dump haulers, or articulated dump trucks (ADTs), varies depending on various factors, including terrain type, engine specifications, vehicle behaviour, and operational conditions.
Terrain type plays a significant role in fuel consumption. ADTs are designed for transporting materials over rough terrain and can navigate uneven ground and unfinished construction sites effectively. While these trucks can manage city roads, their fuel efficiency is lower in urban areas due to the stop-and-go nature of city driving, which increases fuel consumption and oil burning. In contrast, highway driving on interstate highways with minimal stops allows for better fuel economy as drivers can utilise cruise control and maintain a steady speed.
The specifications of the rock truck's engine also influence fuel consumption. Different engines have varying fuel efficiency capabilities. For example, the CAT 725 articulated dump truck with a 2001 3176 engine consumes approximately 9.4 gallons of fuel per hour without ACERT, while the ACERT engine model averages 11.75 gallons per hour. The CAT 740 GC, on the other hand, incorporates a fuel-saving ECO mode, improving efficiency.
Additionally, the operational conditions and driving behaviours can impact fuel efficiency. Factors such as haulage distance, lifting height, load weight, and operation time per cycle influence fuel consumption patterns. Aggressive driving behaviours, including speeding, frequent lane changes, and harsh braking, can decrease fuel economy by up to 12%, as they require the engine to work harder and burn more fuel. Idling can also increase fuel consumption, and in some cases, extreme weather conditions may impact fuel efficiency.
Overall, the fuel consumption of rock trucks varies based on terrain type, engine specifications, driving behaviours, and operational factors. By considering these aspects, operators can make informed choices to optimise fuel efficiency and minimise fuel costs.
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Frequently asked questions
A rock truck, also known as an articulated hauler, dump hauler, or articulated dump truck (ADT), is used to move large amounts of heavy material around or off of a job site.
Some rock truck brands include Caterpillar, Bell, Rokbak, Hydrema, and Volvo.
The CAT 725 rock truck uses about 11.75 gallons of fuel per hour or 94 gallons in eight hours.
The CAT 771 rock truck's fuel consumption ranges from 23-32 litres per hour on the low end, 32-42 litres per hour in the medium range, and 42-55 litres per hour on the high end.
The CAT 740 GC rock truck has a fuel-saving ECO mode. The Bell D-series rock trucks are also known for their best-in-class fuel efficiency. Rokbak rock trucks also feature industry-leading gear transmission that helps cut fuel costs. Volvo rock trucks are also engineered for incredible fuel efficiency.
