Excavator parts are large and heavy, made of heavy gauge steel, and consist of the boom, bucket, tracks, engine, and hydraulic components. The tracks are designed solely to move the excavator into a working position, while the bucket is made of strong steel and powered by a hydraulic system. The excavator’s tracks and undercarriage are powered by hydraulics, and the top half of the machine can rotate in a full circle.
Excavator parts consist of many large components. The boom, bucket and tracks are all parts of the excavator. Many engine and hydraulic components are all excavator components. Due to the nature of the work an excavator does, most excavator parts are very large and heavy. Made from heavy gauge steel, excavator parts often require a small tractor to move them from location to location within the shop floor.
While many of the track components on an excavator appear to resemble those on a bulldozer, the excavator parts are actually very different. The tracks on a bulldozer are designed to provide forward grip, while excavator parts and tracks are designed solely to move the excavator into a working position. They are not intended to power the excavator through mud and snow. They are primarily used to disperse the weight of the excavator over a greater area than tires would.
The bucket or shovel used on an excavator is made of very strong steel. This allows the bucket to break through very large rocks and hard ground. Some excavators are used to demolish large areas of concrete and even asphalt roads. As the operator pulls the bucket through tough material, the strong teeth welded onto the bucket chew through the material and break it apart.
Even with a very strong bucket, an excavator wouldn’t be able to crush hard material if it weren’t for the powerful hydraulic system. A large, powerful engine drives a hydraulic pump that powers the excavator parts. The hydraulic cylinders on the arm act like the muscles on a human arm. When the hydraulic cylinders contract, they pull the bucket and arm just like muscles move an arm and hand. The operator controls the movements by acting on the levers in the cabin.
The excavator’s tracks and undercarriage are powered by hydraulics. The engine that drives the boom and bucket hydraulic pumps also drives a separate hydraulic pump that controls the track drive system. Foot pedals mounted in the excavator cab are used to propel the machine both forward and backward. The machine is unwound by braking one track while powering the other. The machine rotates around the track which has the brakes applied, turning the excavator.
The top half of the machine, or the house, as it is called, is able to rotate in a full circle. This is possible because the house is fixed to the undercarriage via a central pin. This rotation allows the excavator to reach a large working area while standing still.
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