Stirling Ultracold’s VAULT100 upright ultra-low temperature (ULT) freezer boasts a -100 to -20 C temperature range. It features temperature uniformity of +/-3 C at -80 C throughout the interior cabinet with steady-state adherence to setpoint. With a more robust M6D free-piston Stirling engine design, it also has a larger 10-inch touchscreen display and graphical user interface (GUI) that includes onboard predictive analytics freezer diagnostics than previous models.
Replacing the company’s SU780XLE upright model, the Stirling VAULT100 provides the same storage capacity with matching external dimensions, maintaining the highest storage density and smallest footprint in its class. The wider temperature range gives customers more storage choices without compromising energy efficiency and is ideal for labs that frequently access samples from the freezer. Operating at the -100 C setpoint, the VAULT100 interior cabinet remains below -70 C when the door is open for up to 2 minutes.
The VAULT100 is powered by the new M6D Stirling engine that builds on those original advantages with a more robust design and new linear motor that allows lower power consumption at the control board. The M6D engine improves system reliability and energy efficiency over previous Stirling designs, allowing the VAULT100 to use only 5.8 kWh/day (steady-state) with a maximum daily energy consumption (MDEC) of 0.22 kWh/day/cu-ft, validated by ENERGY STAR certification.
A new Onboard Predictive Analytics section of the VAULT100’s GUI is comparable to lights and notifications on a car’s dashboard. This unique tool monitors and analyzes multiple Stirling M6D engine sensors that report on the overall health of the freezer, providing guidance for preventative maintenance and proactive recommendations based on each unit’s current operating conditions and stage of life.