Precision straightener machine is a type of industrial machine used to straighten and flatten metal sheets or strips. It is commonly used in stamping operations for electrical components, such as mobile phone parts, PC accessories, and other digital parts that require a high degree of accuracy and precision.

Straightener machines typically consist of two sections: a rough straightener section and a precision straightener section. The rough straightener section has larger rollers that perform the initial straightening process. The precision straightener section has smaller rollers that refine the straightening process, improving the precision and accuracy of the flattened material.