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Excavators in engineering and construction operate on a basic principle of hydraulic power. Here's a breakdown:
1. Hydraulic System: Excavators are powered by hydraulic systems. Hydraulic fluid is pressurized by a pump and then transmitted through hoses to hydraulic motors and cylinders.
2. Cylinder Actuation: The main components of an excavator's hydraulic system are the cylinders. These cylinders are responsible for the movement of the boom, arm, and bucket. By controlling the flow of hydraulic fluid into and out of these cylinders, the operator can control the movement and positioning of the excavator's arm and bucket.
3. Boom and Arm Movement: The boom and arm of the excavator are connected by hydraulic cylinders. Extending and retracting these cylinders allows for the raising, lowering, and pivoting of the boom and arm, which ultimately controls the reach and height of the excavator.
4. Bucket Operation: Another set of hydraulic cylinders controls the movement of the bucket. By extending or retracting these cylinders, the operator can open, close, and tilt the bucket to pick up and deposit materials.
5. Rotation: Excavators also have a rotating platform called the house or cab. This rotation is powered by hydraulic motors, allowing the operator to swing the excavator's arm and bucket in a wide range of directions.
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