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繩索式雙瓣抓斗按起重機特性適配，常用類型有單索、雙索、四索三種。此類抓斗結構簡單，操作方便，單索型啟閉機構新穎，動作可靠，是一種適用于在港口、礦山、堆場等作業(yè)場合從事煤炭、黃砂、礦粉、散化肥等顆粒狀、小塊狀散裝物料裝卸的有效工具。額定起重量通常為5噸~100噸。
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.