Tunnel type infrared oven is a self-developed drying and sterilization machine based on the absorption of drying and sterilization technology. It transfers materials through tunnels, fully utilizing the effective drying space and suitable for drying various shapes of materials. The whole machine is divided into several temperature and humidity bottom sections, and the materials are horizontally and vertically transformed through the drying medium in the entire drying zone. There are now hot air circulation and far-infrared types.