Laboratory autoclave are used static seal structure, agitator and motor drive connection between the use of magnetic coupling, due to its non-contact torque transmission to replace the dynamic seal static seal can be completely resolved before the mechanical seal and packing seal leakage can not be resolved problems so that parts of the media are completely in the mixed state of absolute seal to work, therefore, more suitable for a variety of flammable, toxic, expensive media, and other strong penetration of the chemical reaction media, oil , chemicals, organic synthesis, polymerization of polymer materials, food and other process for curing, fluorination, hydrogenation and oxidation reactions without leakage response to the best equipment.