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MVE Variō

Ultra Low Temperature (ULT) freezers

Utilising an innovative heat exchange system that runs on liquid nitrogen, the Variō Series Freezer is able to maintain a user-defined temperature (+/- 5°C) anywhere between -20°C and -150°C. This environmentally-friendly freezer can accommodate up to 94,500 2.0 ml vials.

The Variō Series offers many distinct advantages over traditional ultra-low mechanical freezers and a significant operating cost saving. It operates on just 1% of the electricity of a mechanical freezer and can result in an overall decrease in operating costs by up to 70%.

There are significant sample security and stability advantages with the Variō freezers. With traditional -80°C mechanical freezers internal temperature will increase so drastically if the door is open for just 3 minutes that sample temperature can increase by as much as 10°C. In comparison the Variō series offers consistent internal temperatures even when the lid is open. It also offers much longer hold times than traditional ultra-low mechanical freezers. For instance, if the liquid nitrogen supply is removed or interrupted it will take 4 days for the internal temperature to rise from -80°C to -60°C. In contrast if the power supply is removed from a mechanical freezer it will warm up by the same amount in just 6 hours.

Photo courtesy of Chart Industries, Inc.  Copyright 2018.  Used with permission, all rights reserved.

Download MVE Vario Series 1500 and 1800 Product Guide

What are the Benefits of Air Products' ULT Freezers​?

Features Include:

  • Approximately 70% operating cost savings compared to leading mechanical freezers (-80°C)
  • Less than 1% of the electricity consumption compared to leading mechanical freezers (-80°C)
  • Consistent temperature profile, even with lid open
  • Improved processing time, minimal increase in temperature when warm samples are introduced into the cryogenic freezer
  • No thermal load; no heat introduced into room and no additional HVAC required. No expensive compressors to replace
  • Greater safety margin (LN2 removed until -60°C)
    • 4 days from -80°C
    • 9 days from -150°C

Ask the Expert

Stephen Robinson

Product Manager - Life Science

“Do I need HVAC if I have a room full of Variō ULT freezers?”
No HVAC is required for the Vario ULT freezers as they emit no heat into the room


MVE Vario ULT freezer
A detailed presentation of the benefits of the MVE Vario freezer over conventional mechanical freezers
Designing the Next Generation Liquid Nitrogen Biological Repository

Liquid Nitrogen

Nitrogen is valued both as a gas for its inert properties and a liquid for cooling and freezing. Our experienced applications team can use their knowledge of your industry and application to provide you with a supply and technology solution to meet your unique needs.
Download Liquid Nitrogen Safetygram 7 brochure

CryoEase® Microbulk Solutions

CryoEase® microbulk technology is a modern concept where your gas is supplied by filling on-site vs. the traditional method for smaller volume usage, where gas is supplied by swapping full for empty cylinders and dewars. CryoEase® microbulk supply features specially designed trucks with integrated controls and flexible storage tank options. End usage can be provided as pure gases, cryogenic liquids or gaseous mixtures via a blender installed at your site.