
Liquid nitrogen is first transported from the storage tank to the nitrogen injection head of the filling machine through a vacuum insulated tube. The first sensor (which can also be used as an encoder to improve the resolution of bottle speed sensing) detects the speed of the assembly line, and the second sensor senses the presence of the container. The system calculates the required amount of liquid nitrogen injection based on the container speed (speed automatic filling compensation function). Once the presence of the container is sensed, the predetermined amount of liquid nitrogen is opened under the filling valve. The entire nitrogen injection process is comprehensively controlled by a programming logic controller, sensors, and a human-machine interface.
Reduce the weight of PET, save costs and promote environmental protection
Eliminate the personal hazards of glass bottles and reduce product weight
Maintain the original posture of the lightweight bottle
Increase bottle pressure to eliminate flat bottle problems
Inert packaging maintains product freshness
The oxygen content drops to the lowest level
Consistent bottle wall hardness improves labeling efficiency
The energy-saving performance of liquid nitrogen injection can be measured and replicated
Improve product stacking capability and reduce usage area
No need for preservatives to extend shelf life