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CryoDoser

Advanced high speed liquid nitrogen injection system

The CryoDoser is Chart’s premier high speed dosing system with advanced features for optimizing the performance of a high speed production line at speeds up to 108,000 containers per hour.

Typically installed after the filler and before the capper/sealer, the CryoDoser dispenses a measured dose of LN2. Once introduced into the container, it immediately picks up heat and turns into gaseous nitrogen, expanding 700 times in the process. This expansion creates pressure and adds rigidity to the container. For headspace inerting, the rapidly expanding gas is allowed to escape before the product is sealed, flushing oxygen out of the container.

System Features

• Quick service – clear freeze ups in 10 minutes.
• Nozzle pre-cool – ensures there are no low dose containers at line start.
• Flexible arm – angle the head to minimise splash back.
• Accurate, precise dosing.
• Reliable performance.
• No container/no dose feature.
• Sealed vacuum insulation – no vacuum pump required.
• Slim profile dosing head.
• Self-generated GN2 purge at dosing head to minimize moisture intrusion.
• Self-regulating heaters designed for longevity.
• Distribution panel to track performance of each electrical component.

Controller Features

• Easy to use touch screen controller requires minimal training.
• Multi lingual support.
• ‘True’ speed compensation – system will adjust dose volume dependant on line speed.
• Single button to control dose size.
• Volt free alarm outputs for integration in to line controls.
• NEMA 4X / IP 65

Specifications

• Material: stainless steel series 300 (316 litre option for Ultraclean applications)
• UltraDoser weight: 17 kg (38 lbs)
• Dosing specifications: min 0.01 g – max 20 g/sec
• Certifications: NEMA 4X IP 65 CE

System Utilities

• Liquid nitrogen: 0.2 – 1.5 BAR (3 – 22 psig)
• (10 micron filter provided) (0.5 available and 0.2 with a phase separator)
• Gaseous nitrogen: 4.1 – 6.8 BAR (60 -100 psig)
• Maximum line speed: 108,000 / hour
• Accuracy: +- 5% of dose volume
• Controller: Siemens S7 -200 series
• Electricity: 95 – 220 Volts AC max 70W

Options

• Hot chute atomiser (doses atomised spray of LN2)
• SoftDose Technology (Reduce splash back in hot filled products and wide mouth cans).
• Support Stand and Base.
• Extended Vacuum Insulated Liquid Nitrogen Feed Hose.
• Extended cabling to enable remote mounting of control panel

Further information

• Download a product data sheet