Hoist mechanical four rope grab

The excavator grab refers to the grab used in conjunction with the excavator. It is generally a hydraulic grab driven by a hydraulic cylinder.The excavator grab bucket is a spreader that grabs and unloads bulk materials by opening and closing two combined buckets on the left and right or multiple jaw plates. The grab bucket composed of multiple jaw plates is also called a grab claw.Excavator grabs can be divided into shell-shaped grabs and orange-petal grabs according to their shapes. The former is composed of two complete bucket-shaped components, and the latter is composed of three or more jaw plates.The excavator grab itself is equipped with an opening and closing structure and is generally driven by a hydraulic cylinder. Therefore, a grab bucket composed of multiple jaw plates is also called a hydraulic claw.Excavator grab buckets are also divided into rotating and non-rotating ones according to their operating characteristics. The non-rotating grab bucket uses the oil circuit of the excavator bucket cylinder, without adding additional hydraulic valve blocks and pipelines; the non-rotating grab bucket A set of hydraulic valve blocks and pipelines need to be added for control.