Knowhow-Now Article

Dump Truck

Dump trucks or production trucks are those that are used for transporting loose material such as sand, dirt, and gravel for
construction. The typical dump truck is equipped with a hydraulically operated open box bed hinged at the rear, with the front being
able to be lifted up to allow the contents to fall out on the ground at the site of delivery.

Dump trucks come in many different configurations with each one specified to accomplish a specific task in the construction chain.

Standard dump truck The standard dump truck is a full truck chassis with the dump body mounted onto the frame. The dump body is
raised by a hydraulic ram lift that is mounted forward of the front bulkhead, normally between the truck cab and the dump body.

The standard dump truck also has one front axle, and one or more rear axles which normally has dual wheels on each side. The common
configurations for standard dump trucks include the six wheeler and ten wheeler.

Transfer dump truck For the amount of noise made when transferring, the transfer dump truck is easy to recognize. It's a standard
dump truck that pulls a separate trailer which can be loaded with sand, asphalt, gravel, dirt, etc.

The B box or aggregate container on the trailer is powered by an electric motor and rides on wheels and rolls off of the trailer and
into the main dump box. The biggest advantage with this configuration is to maximize payload capacity without having to sacrifice the
maneuverability of the short and nimble dump truck standards.

Semi trailer end dump truck The semi end dump truck is a tractor trailer combination where the trailer itself contains the hydraulic
hoist. The average semi end dump truck has a 3 axle tractor that pulls a 2 axle semi trailer. The advantage to having a semi end
dump truck is rapid unloading.

Semi trailer bottom dump truck A bottom dump truck is a 3 axle tractor that pulls a 2 axle trailer with a clam shell type dump gate in
the belly of the trailer. The biggest advantage of a semi bottom dump truck is the ability to lay material in a wind row. This type
of truck is also maneuverable in reverse as well, unlike the double and triple trailer configurations.

Double and triple trailer The double and triple bottom dump trucks consist of a 2 axle tractor pulling a semi axle semi trailer and an
additional trailer. These types of dump trucks allow the driver to lay material in wind rows without having to leave the cab or stop
the truck. The biggest disadvantage is the difficulty in going in reverse.

Side dump trucks Side dump trucks consist of a 3 axle trailer pulling a 2 axle semi trailer. It offers hydraulic rams that tilt the
dump body onto the side, which spills the material to the left or right side of the trailer. The biggest advantages with these types
of dump trucks are that they allow rapid unloading and carry more weight than other dump trucks.

In addition to this, side dump trucks are almost impossible to tip over while dumping, unlike the semi end dump trucks which are very
prone to being upset or tipped over. The length of these trucks impede maneuverability and limit versatility.

Off road dump trucks Off road trucks resemble heavy construction equipment more than they do highway dump trucks. They are used
strictly for off road mining and heavy dirt hauling jobs, such as excavation work. They are very big in size, and perfect for those
time when you need to dig out roads and need something to haul the massive amounts of dirt to another location.

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