Introduction: The boom, or dipper stick excavator, is a working device of an excavator, also commonly called the boom or arm. Its main function is to control the digging and loading actions of the bucket. The arm connected to the frame is longer, hence the common name "boom," technically called the "moving boom"; the arm connected to the bucket is shorter, hence the common name "arm," technically called the "stick." Therefore, they are commonly referred to as the boom and arm.
2025-11-11
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