A crane truck is a multi-faceted piece of equipment, based on simple physics that is used to lift heavy, unwieldy objects. Crane trucks have a multitude of uses from hoisting equipment at heavy construction sites, loading ships, and used for delicate operations such as moving a whale from a flatbed truck to an aqua arena.
Cranes are based on physics principles dating back to the Ancient Greeks who figured out that using a lever and a fulcrum can be used to lift a heavy load. The principle of the lever, allows a heavy load attached to the shorter end of a beam, can be lifted by a small force applied to the opposite, longer end of the beam. Lift happens with the help of the fulcrum that is placed under the beam to support the lift height. Later, they added a hand-winding winch with cables tied to a pulley. They wrapped cables around objects to lift and move them from Point A to Point B, very similar to what you see today. Today’s cranes lift thousands of tons with the help of a hydraulic system.
A crane truck parts consists of the following:
- Boom is the most recognizable part of the crane, the long, telescoping arm responsible for moving objects
- Counterweights are at the rear of the truck’s cab to stop it from tipping over from heavy lifts.
- Jib is the lattice structure that allows the boom to extend.
- Outriggers keep the crane balanced.
- Rotex gear allows the boom to rotate.
Crane trucks are usually for rent on a daily or long-term basis, along with the operator who is licensed and certified to run the crane.