Upright Model SU780XLE

Breakthrough Ultra-Low Freezer Technology with the Industry’s Top ENERGY STAR® Rating

The SU780XLE is the industry’s best performing, most energy-efficient upright ultra-low freezer. As our next generation upright ULT freezer, the SU780XLE delivers enhanced system reliability, sample integrity, and lowest energy use compared to any comparable model on the market. Your samples will be safer than ever because there are no compressors, and proven Stirling engine technology is used with continuous modulation that maintains unmatched temperature stability. The SU780XLE has the largest storage volume per sq. ft. of floor space of any available freezer, and uses a universal power system allowing an input voltage range of 100v to 240v at either 50 or 60hz with minimal current surge.



SU780XLE Benefits

  • Largest Storage Capacity Per Square Foot of floor space
  • 100% Natural Refrigerants (Engine: 10g Helium; Thermosiphon: 90g Ethane)
  • ± 1°C Temperature Variation Over Time at Steady-State
  • 100% Adaptive Control, Enabling Faster Temperature Pull-down and Recovery
  • Ergonomically-Designed Handle and Cabinet
  • Lowest Total Costs of Ownership
  • Generates 70-75% Less Heat
  • Universal Voltage Input, Plugs into Any Outlet
  • Slowest Warm-Up After Power Outage
  • No Surge Currents, No Oil, Low Maintenance
  • Seven Year Engine Warranty
* Comparison of SU780XLE energy use data (independently tested using the ENERGY STAR® Final Test Method) with “baseline” ULT energy consumption field data obtained through the U.S. DOE Better Buildings Alliance report, Field Demonstration of High-Efficiency Ultra-Low-Temperature Laboratory Freezers (2014).

Without Stirling Ultracold’s SU780XLE, the safety of your invaluable samples depends on compressor-based technology that is outdated and known to fail. Our next generation upright ultra-low freezer is built using the latest advances in Stirling engine technology. With only two moving parts and minimal maintenance, along with a gas bearing that eliminates the need for any oil in the system, the Stirling freezer keeps your samples safer than ever before.

With our advanced free-piston Stirling engine technology, we have developed the most energy-efficient upright ultra-low freezer. In addition to using less than 1/3 the energy of standard compressor-based systems, the SU780XLE also provides a substantial reduction in your facilities’ infrastructure and HVAC costs.

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