A sheet metal decoiler is a machine used in metalworking to unwind and straighten coils of sheet metal. It is designed to hold and unroll large coils of sheet metal, allowing the material to be easily fed into other machines for further processing. The decoiler works by rotating the metal coil and feeding it through a set of rollers that flatten and straighten the material. Sheet metal decoilers are commonly used in industries such as automotive manufacturing, construction, and HVAC systems. They come in a range of sizes and capacities to accommodate different types of materials and production requirements.