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        Shanghai Xuban Machinery Co., Ltd.

        Contact: Mr. Lin

        Hand machine: 13817836118

        Phone: 021-64118616

        Biography: 021-64118616

        Address: No. 904, Jiangyuan Road, Pujiang Town, Minhang District, Shanghai

        How to classify hydraulic grab

        Release date:2020-05-26

        1. Classification by shape

        According to the shape, it can be divided into shell-shaped grabs and orange-petal grabs. The former is composed of two intact bucket members, and the latter is composed of three or more jaw plates.

        2. Classification by driving method

        According to the driving method, it can be divided into two categories: hydraulic grab and mechanical grab.  

        (1) Hydraulic grab

        1. The hydraulic grab is equipped with an opening and closing structure, usually driven by a hydraulic oil cylinder. The hydraulic grab composed of multiple jaw plates is also called hydraulic claw. Hydraulic grabs are widely used in special hydraulic equipment, such as hydraulic excavators and hydraulic lifting towers.

        2. The hydraulic grab for excavator is divided into two types: reversing and non-reversing. The grapple without reversing adopts the oil circuit of the bucket cylinder of the excavator, without adding other hydraulic valve blocks and pipelines; with reversing The grapple must add a set of hydraulic valve block and pipeline to control.

        3. Applicable occasions of special hydraulic grab for excavator:  

        a. Excavation of foundation pits, excavation of deep pits, and loading of mud, sand, coal, and gravel on building foundation  

        b. Especially suitable for excavation and loading on one side of a ditch or restricted space.  

        c. Suitable for loading and unloading of ships, trains and cars.