Uncoiling lines are a type of metal processing equipment used in the production of metal sheets, coils, and strips. They are designed to unroll or unwind the metal coil and straighten it to a flat sheet or strip. This equipment is commonly used in industries that manufacture roofing, siding, automotive parts, and appliances.

In the metalworking industry, coiled metal sheets are commonly used to create various products such as pipes and tubes. These metal sheets need to be flattened and straightened before they can be used to ensure that they are of the correct dimensions and quality. A flattening machine can accomplish this task quickly and efficiently, saving time and labor costs.