LN300 automatic CZ interchange purlin machine is a various specifications of C/Z purlins through automatic way. No need changing the forming rollers or blades when changing the sizes. It also can punch and cut controlled by PLC or computer. This model CZ purlin machine is extremely cost-effective and is one of the most popular models on the market. At the same time, it can be upgraded from ordinary motor to servo motor driven. The operation of this equipment is very stable and reliable, and the precision of punching holes is very high, and the output is also high, which can bring convenience to users.