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The main characteristics of the rake head: The rake head is mainly composed of a fixed body and a movable cover. The fixed body is connected to the rake pipe by a flange, and the movable cover is hinged to the body through a pin shaft, which can rotate from 0 degrees to 50 degrees. The angle of the movable cover can be adjusted according to the dredging depth to achieve the optimal suction angle. The rake head can be divided into sediment type, sandstone type, etc., and can also be divided into active and general types. According to size, it can be divided into single cover and double cover. The rake head not only improves construction efficiency but also reduces energy consumption, resulting in significant economic benefits.