A crawler excavator is a versatile piece of equipment that operates on tracks and is used for digging large holes, demolishing structures, and dredging. It has an undercarriage, boom and shovel, and a house where the operator sits. It uses hydraulic pumps to operate and can be modified with different attachments. It is not a crane, as it uses a solid boom and stick to move the bucket. The wide steel tracks allow it to work on soft and unstable ground, but it must be transported to different job sites by truck and trailer.
A tracked excavator is an earthmoving piece of equipment that operates on a set of tracks rather than wheels and tires. Often referred to as a crane or hoe, a crawler excavator is a common piece of equipment when digging large holes. There are many uses for a crawler excavator. Digging pits and basements, demolishing and demolishing structures are just a few.
The main parts of a crawler excavator are the undercarriage or tracks, the boom and shovel, and the house. The operator sits in a cabin called a house and controls the excavator. The engine, typically diesel, drives three main hydraulic pumps. Two pumps operate crawler excavator functions such as booms, bucket and tracks.
The third pump operates the operator controls. This pump operates at low pressure to facilitate operation of the controls while the other two operate at high pressure to provide maximum power to excavator functions.
This piece of equipment is versatile. With the appropriate attachment, a crawler excavator can be used to break up concrete or to cut brush. These pieces of equipment are also used to dredge rivers, ponds and lakes. The type and size of the bucket can be modified and adapted to a multitude of uses. The forearm, or forearm, that connects to the arm can be changed from a long arm for reaching potential or a short arm for powerful digging force.
The crawler excavator is often confused with a crane. While a crane also has a track drive system, it has a high boom that is often scalloped steel and uses a cable threaded through the boom to raise and lower materials. An excavator uses a solid boom and stick to move a bucket or attachment with hydraulic cylinders up and down. While early excavators used cables to move the dipper arm and bucket, a crane isn’t designed to dig a hole.
The crawler excavator is able to work on soft and unstable ground thanks to the wide steel tracks on which it operates. The tracks dissipate the weight and distribute it over a much larger area than a tire ever could. While the rails are fine for working, they are not suitable for hauling the car long distances. To move an excavator, a truck and trailer are typically used. The crawler excavator is loaded and driven to the next job, where it will be unloaded and reused.
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