An Industry Standard of Legendary Heritage Tsubaki WORKHORSE™ elevator chains are specifically designed for use within aggressive bulk material handling environments with harsh fine particulates such as cement, lime, gypsum, salt and potash. Leveraging Tsubaki's extensive heritage within the aggregate segment along with a proprietary blend of premium domestic steels and refined heat treatments, the WORKHORSE Series was uniquely bred to provide superior strength, maximum toughness and legendary dependability.