SANKEN Autoclave, The inner insulation of the kettle body is made of rock wool aluminum silicate, 50-100mm thick, and covered with galvanized sheet; the kettle is equipped with an original longitudinal air natural circulation structure; the heater adopts a modern medium-wave infrared heating tube with a specific wavelength; the cooling adopts circulating water cooling, and the pressure gauge and pressure transmitter are installed on the side of the kettle body for easy observation and maintenance; the kettle is equipped with a safety valve, pressure gauge, and exhaust valve hole.