A chain hoist is a mechanical device used to lift heavy loads by using a chain and a pulley system. It consists of a chain that wraps around a wheel, allowing the user to pull the chain to raise or lower objects. Chain hoists are commonly used in construction, warehouses, and manufacturing settings for moving materials safely and efficiently. These devices come in various sizes and weight capacities, making them suitable for different applications. Some chain hoists are operated manually, while others are powered by electricity or air. They are essential tools for lifting heavy items, such as machinery or building materials, in a controlled manner.