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The Ultimate Articulated Dump Truck Spec Guide
8 minute read
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Tim Forestell
January 3, 2023

The Ultimate Articulated Dump Truck Size Chart and Spec Guide

Made for moving large amounts of heavy material around, on, or off a job site, rock trucks - or articulated dump trucks (ADTs) - are great vehicles to have on any project. Used primarily in land clearing, mining, construction, and quarrying, these off-road dump trucks are always in high demand.

However, when determining what ADT to rent or own, it is vitally important to know the exact specs and preferably the model you're looking for, so you can snatch it as soon as it comes available. This piece will serve as a complete spec guide for the most popular rock truck brands in the industry including all 25, 30, 40, and 50-ton articulated dump trucks.

But before we dive in, let's take a look at the most important specs you should be thinking about before making a rental or purchase.

Important Articulating Dump Truck Specs

When your goal is to haul heavy materials, the first thing you should look for in a vehicle is its rated load capacity. This measures how many tons of dirt, rocks, sand, or anything else the truck can carry safely. This is the most important articulated dump truck spec and should be one of your main factors in a rental. Price points will normally increase with higher truck capacities, so pick the smallest one that fits your project.

Heaped capacity measures the total space available to load materials into the back of the dump truck. This spec is most important when the substance you're going to haul is relatively light, but there's lots of it. The peak capacity on the market is 45.8 cubic yards, but only two brands even surpass 40. If this is something vital to your job, it will help focus your brand decision and get the perfect rental.

Horsepower is the final of the three most significant rock truck specs but is still highly relevant for contractors. When you have two models with equivalent load capacities, the one with a higher horsepower rating will outperform the other every time. Engine power helps these vehicles to handle hills, and is often indicative of the amount of torque the truck can generate. Especially in hilly areas, a high-horsepower engine is a must.

Articulating Dump Truck Brands

Skip ahead to the following brands and their size charts:


With one of the largest selections of any brand on the market, Caterpillar articulated dump trucks are great options for any contractor. Their bare chassis models don't come with the hauler attached, which provides increased customization for those looking for rock truck power without dump truck limitations. Perfect for use as water trucks, high-capacity haulers, and fuel trucks, Caterpillar rock truck chassis are very versatile.

CAT rock trucks stand out because of their impressive features. The CAT Product Link allows contractors to wirelessly connect to their equipment and provides fuel usage, idle time, productivity, and more updates. They also provide CAT Production Measurement, which allows the operator to see the payload weight of any haul while still in the cab. These features maximize your team's efficiency on the job site, and you'll want to make sure they're included in any model you choose to rent.

Cat 740 articulated dump truck on a construction site
Caterpillar 740 ADT

Although they aren't one of the two brands providing models with 60-ton load capacities, Caterpillar manufactures powerful, reliable, and productive equipment. One of the better-known brands in the industry, you always know what you're getting when you choose a CAT articulated dump truck.

CAT's haul trucks include the 725, 730, 735, and 740 models. Caterpillar also has 5 bare-chassis models if you're looking to use them more for forestry, water, or service truck applications.

Caterpillar Articulated Dump Truck Specs and Sizes

CAT Articulated Dump Truck Specs and Sizes
ModelRated Operating Capacity (tonnes)Heaped Capacity (cubic yds)Engine Power (hp)
CAT 72526.519.6342
CAT 730 EJ30.022.1367
CAT 73031.023.0367
CAT 73535.326.2424
CAT 740 GC40.029.7439
CAT 740 EJ42.030.1496
CAT 745.045.232.7496

Bell Trucks

The only other brand with 12 models in their portfolio, Bell Trucks manufactures extremely capable and powerful ADTs. Although not a commonly seen brand in the construction industry, Bell has a strong argument as the best rock truck manufacturer on the market.

Producing both the second smallest and second largest vehicles on the market in terms of load capacity, their selection has the most variety of any brand. In the newer-E series models, Bell has incorporated features such as tip safety data, enhanced parking brake, speed control, weight data, and more. These trucks also come with Fleetm@tics, a fleet management software that provides important information such as weight moved, machine uptime, idle time, and more.

From the more standard D-series to the innovative E-series, Bell rock trucks come in all shapes and sizes. The D-series handle heaped payloads with faster cycle times and best-in-class fuel efficiency, helping keep operating costs low, while the E-series offers excellent features and superior ride quality. The Versa Truck models are customizable for almost every need and are equipped with the latest innovations and features. Great for jobs on any scale, you can't go wrong with a Bell.

Bell Articulated Dump Truck Specs

Bell Articulated Dump Truck Specs and Sizes
ModelRated Operating Capacity (tonnes)Heaped Capacity (cubic yds)Engine Power (hp)
Bell B20E LGP19.814.5228
Bell B25E26.519.5281
Bell B30E30.922.9348
Bell B35D35.827.0396
Bell 40D40.830.0499
Bell 40E43.031.0510
Bell B45E45.233.0523
Bell B50D50.037.0503
Bell B50E50.036.0577
Bello B60E60.645.8577


Formerly known as Terex and officially owned by Volvo, Rokbak lists their ADTs as articulated haulers. Although they only have two models in their portfolio, the RA30 and the RA40, what they lack in quantity they make up in quality. Known for being easy to operate and maintain, these reliable machines have competitive specs in horsepower and heaped capacity for their size.

Rokbak's main differentiator from the competition is its Haul Track feature. This advanced telematics system plans preventative maintenance to prolong machine life, tracks the condition of the hauler in real time, and more. Pair this with industry-leading gear transmission that helps cut fuel costs, adaptable drivetrains, and great safety features, and you've got yourself an excellent rock truck.

Making light work of heavy-duty projects, Rokbak's rock trucks consistently deliver high capacity and high performance. No matter what the conditions are or how tough the job is, you can always trust these models to deliver your team maximum productivity.

Rokbak Articulated Dump Truck Specs

Rokbak Articulated Dump Truck Specs and Sizes
ModelRated Operating Capacity (tonnes)Heaped Capacity (cubic yds)Engine Power (hp)
Rokbak RA3028.022.9370
Rokbak RA4041.930.2444


Despite owning Rokbak, Volvo also manufactures and produces high-quality articulated dump trucks themselves. A well-known car company, they excel in the construction industry and have more than 1,400 employees across 180 markets as part of their Volvo Construction Equipment branch.

With seven models, Volvo articulated dump trucks cover a wide range of contractor needs in terms of horsepower, load capacity, and heaped capacity. Their largest machine, the A60H, is the undisputed best rock truck on the market. Offering an industry-best 61-ton hauling capacity to go along with a mind-boggling 630 horsepower, this incredible vehicle is manufactured to deliver the best possible performance.

Volvo A35G articulated dump truck dumping dirt on a construction site
Volvo A35G articulating dump truck

Similarly to Rokbak, Volvo provides a Haul Assist function which allows the operator to access real-time information about tire pressure and haul weights. This will help your team instantly boost productivity, increase efficiency, and reduce operating costs, and what contractor doesn't want that? From the highway to the construction site, Volvo never compromises on powerful, productive performance, which is what makes Volvo the perfect articulated dump truck rental option.

Volvo Articulated Dump Truck Specs

Volvo Articulated Dump Truck Specs and Sizes
ModelRated Operating Capacity (tonnes)Heaped Capacity (cubic yds)Engine Power (hp)
Volvo A25G28.020.0315
Volvo A30G32.023.3355
Volvo A35G38.027.7451
Volvo A40G43.031.4469
Volvo A45G45.032.8479
Volvo A60H61.043.9630

John Deere

A construction brand that's well-known across almost every type of equipment, John Deere rock trucks do not disappoint. With well over 180 years of manufacturing heavy equipment, John Deere continues to make top-flight products and deliver excellent features to their customers.

Although they have a limited portfolio of four ADTs, they provide enough capacity to serve most of the market. Made especially for small and medium-sized projects, John Deere articulated dump trucks offer impressive power and torque so you can keep working on steep slopes, through deep ruts, and in slippery muck. With in-cab diagnostics, the operator is always in the know, and features such as on-the-fly auto-differential lock and onboard payload weighing help boost productivity and uptime.

John Deere 410 dump truck with it's body in dumping position
John Deere 410 ADT

Focusing their attention on construction, landscaping, and forestry rather than mining and quarrying, John Deere's customers generally have lower payload demands. Built tough, John Deere is a favorite brand among many contractors and their rock trucks are valuable job site tools.

John Deere Articulated Dump Truck Specs

John Deere Articulated Dump Truck Specs and Sizes
ModelRated Operating Capacity (tonnes)Heaped Capacity (cubic yds)Engine Power (hp)
John Deere 260 P-Tier ADT26.719.6321
John Deere 310 P-Tier ADT31.022.9354
John Deere 410 P-Tier ADT41.130.0441
John Deere 460 P-Tier ADT46.132.9481


Ready for tough conditions, Komatsu's small portfolio of articulated dump trucks is perfect for job sites where roads may not exist or are not well-established. Coming equipped with a traction control system for soft and slippery environments as well as multiple-disk breaks, these models handle muddy hills with ease. Their larger model, the HM400-5, in particular, is designed specifically to handle adverse terrain while delivering productive, consistent performance.

With excellent maneuverability, automated powertrain features, and customer-approved ride comfort, operators love Komatsu rock trucks. Komatsu vehicles are also designed to maximize transition life. The six-speed, fully automatic transition has a built-in electronic system that reduces shift shock and torque cutoff, providing your team with exceptional efficiency.

Providing middle-large class models, Komatsu rock trucks are great for operators of any experience level. With a company mission to deliver the best of the best in all areas, they do not disappoint with their articulated dump trucks.

Komatsu Articulated Dump Truck Specs

Komatsu Articulated Dump Truck Specs and Sizes
ModelRated Operating Capacity (tonnes)Heaped Capacity (cubic yds)Engine Power (hp)
Komatsu HM300-530.922.4332
Komatsu HM400-544.131.4473


Producing a wide variety of small models, Hydrema rock trucks are specialized equipment for contractors with minimal capacity needs. Offering three series consisting of nine models, not a single one exceeds 25 tons of rated load capacity, perfect for lesser-scale construction and mining projects.

Their 707G series may only provide 7 tons of load capacity, but being so small certainly comes with some perks. These models maximize maneuverability and visibility, increasing operator comfort and making them much easier to operate on crowded job sites. With a focus on protecting the driver, any worker will feel safe in a Hydrema 707G.

Compact, highly mobile, and delivering superior off-road performance, the 912G series provides efficiency and operator comfort. Offering smart features like a swiveling body while still maintaining a smaller frame, these models can handle extra capacity but still work on tight job sites.

Their largest models, like the 922G series, are smaller than some other the supplier's smallest models. However, these machines are great at providing maximized traction and agility. Perfect for soft and muddy terrains, these models have vastly superior horsepower to their less capable counterparts. Built for high-quality and long life, these models have record-low ground pressure to adapt to sensitive terrains.

No matter which model or series you choose, if you're looking for a highly capable and versatile rock truck for a smaller project, look no further than Hydrema.

Hydrema Articulated Dump Truck Specs

Hydrema Articulated Dump Truck Specs and Sizes
ModelRated Operating Capacity (tonnes)Heaped Capacity (cubic yds)Engine Power (hp)
Hydrema 707G7.24.675
Hydrema 707G Power+7.24.6122
Hydrema 912G11.07.3147
Hydrema 912GS11.07.3147
Hydrema 912HM11.07.3147
Hydrema 920G22.012.0NA
Hydrema 922G24.312.0314
Hydrema 922HM24.312.0314
Hydrema 922G 2.5524.312.0314


Last but not least comes another popular heavy equipment brand, Develon. With two reliable, dependable, and cost-effective models backed by more than 40 years of experience in the ADT market, contractors should seriously consider Develon for medium-large scale projects.

Providing sure-footed traction, maximum ground contact, and a quick-unloading tailgate, the DA30-5 and DA45-5 are perfect for applications such as construction, road projects, mass excavation, mining, and quarrying. Their unique design provides the highest torque to the wheel, giving operators the best grip for extreme performance in off-road conditions.

A smooth ride, impressive specs, and surpassing performance are just some of what makes these models excellent rental options. Easy to service with unmatched interior cab comfort, Develon rock trucks are great options for any team in the construction industry.

Develon Articulated Dump Truck Specs

Develon Articulated Dump Truck Specs and Sizes
ModelRated Operating Capacity (tonnes)Heaped Capacity (cubic yds)Engine Power (hp)
Develon DA30-530.922.0370
Develon DA45-545.231.9493

Renting an Articulated Dump Truck

With eight different brands providing 50 total options, searching for a rock truck can get overwhelming. We hope this guide has effectively pointed in the direction of which brands would be best for you to rent from, but we want to take it one step further.

Whether you're looking for a large, medium, or small articulated dump truck from Caterpillar, Bell, Rokbak, Volvo, John Deere, Komatsu, Hydrema, or Develon, you can find your next rock truck rental on the DOZR marketplace.

Want some more information about this equipment before you make your final decision? Read our "everything you need to know" blog to become an articulating dump truck expert in just a few minutes.

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Tim Forestell
Tim Forestell is one of DOZR’s co-founders and CCO. Tim got started in the industry as VP Operations for Forestell Landscaping before founding DOZR with Kevin and Erin. Aside from the amazing team at DOZR, his favourite thing about DOZR are the customers. Working with DOZR renters every day gives him a peek at the evolution of different projects and hearing stories about projects being developed from start to finish.
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