Roll forming is a type of rolling involving the continuous bending of long strips of sheet metal which are typically coiled steel into any desired cross-section. In roll forming machines the metal strips which are to be formed into desired shapes are passed through sets of rolls mounted on consecutive stands, where each set only performs an incremental part of the bend, till the desired cross-section is obtained.
Roll forming machines are ideal for large quantities, producing constant-profile parts with long lengths. Roll forming machines are available in different sizes, shapes, and material thickness. Roll forming machine achieves variations in size by making the distance between the rolls variable by computerized or manual adjustments which allows rapid changeover.
The portable based roll forming machines has been bringing metal roof manufacturing to the job site making it easy for the requirements. On site roll forming machines eliminates shipping damages many size errors and short shipments and provides freight and packaging savings.