Chart UltraDoser 500S liquid nitrogen dosing system

The UltraDoser 500S is a multipurpose liquid nitrogen (LN₂) dosing system using cryogenic technology and PLC programming. The system has been designed for low-to-medium production line speeds to dispense a precise dose of LN₂, which gasifies and is either trapped in the container to add rigidity or escapes with oxygen to inert the headspace.

The system can dose up to 2000 containers/min. LN₂ is supplied to the dosing system by a vacuum insulated hose and flows into the dosing head. A sensor detects the speed of the line (encoder compatible); a second sensor detects the presence of a container. When a container is detected, the dosing head opens and dispenses an exact amount of pure LN₂. A PLC integrates the sensors, controls and human interface.

The compact system has been designed specifically for tight pressure specifications. Features include discrete or continuous dosing as defined by the user, SoftDose compatibility for hot fill, powder and granular applications, capability to monitor and troubleshoot the system remotely and automatic dose adjustments at any line speed between low/high points as defined by the user.