Techinjector Liquid Nitrogen Injector

The Techinjector® is the Industry’s first quick-change liquid nitrogen injector.

Our unique, liquid nitrogen injector is based on years of experience in manufacturing liquid nitrogen injectors. The Techinjector offers a set of features unmatched by others:

  • Less Space On The Line – A compact injector body and a remote mounted control box provide the smallest production line space claim of any injector available.
  • Simplified Product Line Changes – Store multiple application settings that can quickly be switched for different product runs.
  • Automatic Line Speed Compensation – The Techinjector® uses a single sensor design that senses each bottle, can, or package and compensates for variations in production line speeds.
  • Designed For The User with Less Maintenance Downtime – All Techinjector® parts that wear can be replaced in minutes without complete injector removal. No tools are required, minimizing downtime.
  • Color Touch Screen Interface – Provides easy to use controls and integration with your production line.

The Techinjector® is ideal for packaging lines that need an inert nitrogen gas to provide slight container pressurization or where nitrogen gas can extend the product life and freshness. Injecting a small drop of liquid nitrogen into a container displaces air and replaces it with inert, odorless nitrogen gas. If the liquid nitrogen is injected just before container sealing, slight container pressurization can be achieved making thinner containers easier to process and handle.

Bottlers of noncarbonated soft drinks, juices, water, wine and beer often use LN2 injection equipment to insert small measured drops of LN2 into their containers.

Processors of nuts and other perishable items use LN2 to provide an inert atmosphere in containers.

Soft food packages can be pressurized by liquid nitrogen injection to protect the package contents from crushing.

Pharmaceuticals and supplement industries use liquid/gaseous nitrogen in packaging products.

Techinjector Specifications
Unit Weight: 7.1 lbs (3.2kg)
Control Box Weight: 19 lbs (8.6kg)
Electricity: 90 – 264 VAC, 47-63 Hz, single phase
Dosing Head Dimensions: 16.25” x 11” x 5” (41cm x 29cm x 13cm)
Control Box Dimensions: 15” x 18” x 8” (38cm x 46cm x 20cm)
Gaseous Nitrogen Requirement: 60 – 100 psig (4 – 7 bar)
Liquid Nitrogen Requirement: 22 – 45 psig max. (1.5 – 3.1 bar)
Discrete Dosing Speed: 1200 Containers Per Minute (CPM)
Discrete Dosing Range: 0.1-8 g/sec
Dose Timing: Up to 500 ms in 1 ms intervals
Technifab’s Techinjector® is made out of stainless steel.

The Techinjector® is RoHS compliant and controls meet NEMA 4X and IP 65 ratings.

Techinjector Upper Head Assembly
Techinjector Upper Head Assembly

Liquid nitrogen expands 700 times in volume when changing from liquid to gas. By injecting a small amount of liquid nitrogen just before the container is sealed, the expanding nitrogen gas will displace the air in the container. This creates an oxygen free (inert) environment to extend product life and can give a slight pressurization to thin wall packages if needed to improve container durability.

A continuous stream liquid nitrogen injection can be wasteful at slower line speeds and will not detect missing containers or the complete lack of containers on the packaging line. Technifab’s Techinjector, using a sensor on the packaging line, detects each container and precisely injects a measured dose of liquid nitrogen at the proper time. The Programmable Logic Controller (PLC) unit automatically adjusts for line speed changes and does not dose missing containers. The unit can also be set up to run in a continuous mode and then shut off when containers stop coming down the production line.

The Techinjector body is vacuum insulated to eliminate frost or ice build-up around the unit. A small amount of nitrogen gas flow eliminates moisture build-up at the dosing point. There is a heater at the dosing head to eliminate icing and the resulting problems some other injectors have. An injector actuator unclamps in minutes and nozzles can be changed in seconds, allowing quick change-out of components that might wear on the unit.

The control box can be remote mounted from the injector body, reducing line space and making changes to the unit easier for operators. Up to 6 different settings can be stored in memory. Customer container changes on the line are only a few keystrokes away.