Heavy-duty excavator hydraulic grab are available in double-cylinder and single-cylinder designs. The designs are different, but the functions are basically the same. It is mostly used for the loading and unloading of large logs, the laying of cement pipes and heating pipes, as well as the loading and unloading of large block scrap, long strip and lump scrap. In the field of small car dismantling, it can be used for extensive dismantling of automobiles.