绳索式双瓣抓斗按起重机特性适配，常用类型有单索、双索、四索三种。此类抓斗结构简单，操作方便，单索型启闭机构新颖，动作可靠，是一种适用于在港口、矿山、堆场等作业场合从事煤炭、黄砂、矿粉、散化肥等颗粒状、小块状散装物料装卸的有效工具。额定起重量通常为5吨~100吨。

Mechanical dual scoop grab is equipped according to the characteristic of crane, which could be divided into three species, that is single rope, double rope, and four rope. The kind of grab is simple structure, convenient operation, and single rope grab has novel opening and closing mechanism, reliable action, which is a kind of efficient tool for loading and unloading granular, small-block bulk cargo, such as coal, sand, mineral powder and bulk chemical fertilizer, and which is suitable to the working site such as port, mine and yard. The lifting capacity of crane is normally 5t~100t.