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Writer's pictureRALPH COPE

Articulated versus Rigid Dump Trucks: What is the Difference?



Dump trucks are essential machines used in construction, mining, and other heavy-duty industries to transport large quantities of materials. There are several types of dump trucks available in the market, including articulated dump trucks (ADTs) and rigid dump trucks (RDTs). Both types of dump trucks are capable of transporting materials, but they have some fundamental differences. In this article, we will discuss the differences between articulated dump trucks and rigid dump trucks.


Articulated Dump Trucks (ADTs)

Articulated dump trucks (ADTs) are off-road vehicles that are designed to operate in rough terrain. These trucks have a unique design that consists of two sections: a tractor unit and a dump box. The tractor unit is articulated, which means that it can bend in the middle, allowing it to navigate through tight spaces and uneven terrain. This design also ensures that all four wheels maintain contact with the ground at all times, providing excellent stability and traction.


The dump box is mounted on the rear section of the tractor unit and can be raised to dump the load. ADTs are ideal for transporting materials over rough terrain, such as steep slopes, muddy ground, or loose soil. They can navigate through narrow passages, making them suitable for construction sites with limited access.


ADTs are available in various sizes, ranging from small trucks with a capacity of 25 tons to large trucks with a capacity of over 60 tons. They are typically powered by diesel engines, and their transmission is either automatic or manual. The cab of an ADT is usually located at the front of the tractor unit, providing the driver with an excellent view of the surroundings.


Rigid Dump Trucks (RDTs)

Rigid dump trucks (RDTs) are also off-road vehicles used in heavy-duty industries to transport large quantities of materials. Unlike ADTs, RDTs have a rigid frame that connects the cab and the dump box. This means that the entire truck moves as a single unit, providing less flexibility in navigating through rough terrain.


RDTs are available in various sizes, ranging from small trucks with a capacity of 30 tons to large trucks with a capacity of over 400 tons. They are typically powered by diesel engines, and their transmission is either automatic or manual. The cab of an RDT is usually located at the front of the truck, providing the driver with a good view of the surroundings.


Differences between ADTs and RDTs


Articulation

The most significant difference between ADTs and RDTs is the articulation. ADTs have an articulated design that allows them to navigate through tight spaces and uneven terrain. In contrast, RDTs have a rigid frame that provides less flexibility in maneuvering through rough terrain.


Capacity

ADTs are available in smaller sizes and have a smaller capacity than RDTs. The largest ADTs have a capacity of around 60 tons, while the largest RDTs have a capacity of over 400 tons. This means that RDTs are more suitable for transporting large quantities of materials over long distances.


Stability

ADTs are more stable than RDTs due to their articulation design. The articulation ensures that all four wheels maintain contact with the ground at all times, providing excellent stability and traction. In contrast, RDTs have a higher center of gravity, making them more prone to tipping over.


Maneuverability

ADTs are more maneuverable than RDTs due to their articulated design. They can navigate through narrow passages, making them suitable for construction sites with limited access. RDTs, on the other hand, have a larger turning radius, making them less suitable for tight spaces.


Cost

ADTs are generally more expensive than RDTs due to their specialized design.


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