The Two Rope Mechanical Clamshell grabs for two line operated cranes (One Holding Rope and One closing Rope). The grabs are specially designed for charging and discharging sand, gravel and other bulk materials. The grabs can be executed with open or closed shells depending on the job and the type of material to be handled. The grabs are manufactured of high wear resistant steels. All bearings are heavy duty and sealed for high performance.