The rotary automatic cover cover is compressed, the nitrogen-filled automatic production line, does not affect the normal production of the existing equipment, and can reduce the oxygen content in the bottled oil. Make sure 24 hours continuous production, does not affect the original production line speed. To ensure safety, the sensor is used in the online monitoring environment, automatically start the exhaust ventilation system, and strictly ensuring the safety of the operator. And install the safety protection device, the whole machine protection, the material meets food safety requirements.