The tunnel furnace cleaning machine is widely used in the sterilization and pyrogen removal treatment of xilin bottles and ampoules in the pharmaceutical industry. The equipment meets the requirements of US/European Union/China GMP and FDA 21CFR Part 11. The speed of the stainless steel chain can be adjusted according to different needs. The heating element is made of quartz glass tube, which has high radiation coefficient, low energy consumption and fast heating speed. The device has a trend and exhaust port, and is equipped with a butterfly valve to control the air volume. The temperature range can be set to 50-400 ° C. The device is also equipped with digital temperature controller, motor governor and other electrical equipment to ensure the normal operation of the machine.