(1) Pneumatic is used to control the lifting and lowering of the insulated door panel, and is controlled by button operation, so the operation is feasible and easy and convenient. (2) During the shutdown of the setting machine, an emergency door opening device is installed so that it can play a role in an emergency and take some emergency measures smoothly. (3) The nozzle system is adopted, which can keep the width of the automatic adjustment of the air jet well to adapt to fabrics of different widths, thereby saving energy and avoiding defects or defects in the fabric setting process. (4) It can effectively strengthen the needle loading effect, avoid the movement of the needle eye and the friction of the brush belt. These benefits can extend the service life of the stenter setting machine and expand its scope of application.