A loader is a type of tractor, usually wheeled, sometimes on tracks, that has a front-mounted square wide bucket connected to the end of two booms (arms) to scoop up loose material from the ground, such as dirt, sand or gravel, and move it from one place to another without pushing the material across the ground. A loader is commonly used to move a stockpiled material from ground level and deposit it into an awaiting dump truck or into an open trench excavation.
A loader crane is a hydraulically powered articulated arm fitted to a trailer, used to load equipment onto a trailer. The numerous sections can be folded into a small space when the crane isn’t in use.
Different types of cranes exist depending on the particular job that needs to be completed. One of the most commonly seen cranes seen in cities is a tower crane. Tower cranes were initially developed in Europe and are now popular all over the world. A tower crane is used in the construction of tall buildings. This type crane can reach up to 265 feet, out to 230 feet, and lift a total of approximately 20 tons. Tower cranes are fixed to the ground during the construction period. A tower crane is always mounted over a strong concrete pad so that anchor bolts can be embedded into the pad.
Overhead cranes, also known as bridge cranes are one type of material handling equipment to meet the lifting requirements of medium and heavy industries. Generally, an overhead crane is a crane with a lifting hoist traveling along the cane bridge between parallel runways.