Product Description

WYD-300 Liquid Nitrogen  injection Machine for Pet bottle or aluminum can is the latest dosing machine in China .

It  has the advantage of

Accurate dosing volume,

No-container-no-liquid dosing

Small size 

Easy installation and maintenance

Suitable for any filling production line

Siemens PLC control system with touch screen,

Vacuum heat-insulated pipes ensuring minimum consumption of liquid nitrogen

No frosting operation condition

The liquid nitrogen dispenser is designed to create a pressure and inert environment in packaging containing "calm" liquids (such as oil, water, juice, wine, beer, low alcohol beverages, etc.) and food (ketchup, nuts, potato chips, breadcrumbs, etc.). This machine is suitable for any packaging container, including aluminum cans, glass, PET , and other types of plastic.
The ability to automatically create over-pressure and inert environments is a revolution in the packaging industry to some extent. After a drop of liquid nitrogen is injected into a bottle or container, the evaporation is strong (boiling point - 196 ° C)
When it becomes a gas, its volume increases by 700 times. This physical phenomenon can do two basic things:
First, before packaging, the remaining air and oxygen are squeezed out of the bottle and replaced with inert gas nitrogen, thereby extending the shelf life of the product;
Secondly, after sealing, the evaporated liquid nitrogen will generate additional pressure, greatly improving the rigidity and strength of aluminum, RET, and other plastic containers. This is necessary for reasonable storage and transportation, and to prevent the "vacuum rupture" effect of hot products when cooled in closed containers.
Using a liquid nitrogen dispenser, it is possible to successfully package cold liquids, hot ketchup, cooking oil, dessert syrup, wine or coffee concentrate into PET containers.

Liquid Nitrogen Injection Machine Working Process

      When liquid nitrogen vaporized, the volume expansion 700 times, extrude the air out and vacuum the can,increase the aluminum can/pet can internal pressure to strengthen the package, Meanwhile, prolong  canned food or beverage shelf life, keep good looking for better transportation and store.

Key Advantage when using liquid nitrogen injection machine 

• Strengthen lightweight PET package  –  reduce the weight of PET for saving cost and environmental friendly requirement.

• Container rigidity – maintain shape even with lighter weight containers

• Oxygen reduction – Create an inert environment in container to keep product fresh

• Extend shelf life – minimize oxygen content

• Ease of labeling – consistent container rigidity creates an efficient labeling process

• Maximize warehouse storage space – increasing product stack ability utilizes less square footage

• Stabilize organic products – extend shelf life without preservatives

   Liquid Nitrogen  Dosing Machine Operation Conditions

1.  Supple of Liquid Nitrogen: Regulate to 15 (0.1MPa) and connect to liquid nitrogen pipe.

2.  Compressed Air or Nitrogen: Supply to the working of dosing valve.

 The pipe diameter must be 1/4 inch and pressure range is from 50 psig to 100 psig (3.4 to 6.9 bar). Set the pressure to 50 psig (0.35MPa).

 Please do not set the pressure too high, high pressure means high impact, it will shorten the lifetime of dosing valve element and internal vacuum pipe.