2 Peel Clamshell Grab Bucket

The clamshell most common and is used in silty, clayey and sandy materials. In mud the yaws in general have flat plates without teeth. In sand, clay and gravel, the yaws are fitted with in each other grabbing teeth. The two halves, shells, rotate around a hinge in the lower sheave block and are connected with the upper sheave block by rods. The closure/hoist cable is reefed several times between the head and the disc block to generate enough closing force. In mud the yaws in general have flat plates without teeth. In sand, clay and gravel, the yaws are fitted with in each other grabbing teeth. For the removal of contaminated soil closed clamshells are used to avoid spillage.

Specifications

Grab under operation