This set of machinery combines cradle, feeder and straightener together, which can reduce the error between feeding and straightening and save much space in installation. It can work in variable speed as is needed. The coils straightened by this set of machine is smooth, velvet and without scratching. The upper part is designed with roller mechanism, which makes it very easy to clean and maintain. The straightening rollers are adjusted through worm gear, which makes it very accurate. With high accuracy and small occupying space, it is specially for those who have great demand for accuracy and space.