Conveyor_ChainChain conveyors are ideal for wet, heavy material, extreme temperature conditions, or material that varies in size and shape. U.S. Metal Works chain conveyor systems are tough and long-lasting. They maintain a positive feed and tolerate conditions that other types of systems can’t handle. Wet or dry, hot or cold, a U.S. Metal Works chain conveyor system will deliver the material reliably and with low maintenance for years to come.