
The Stirling Ultracold VAULT100™ PRO is built for laboratories, biorepositories, health care systems and research environments that cannot afford uncertainty in ultra-low temperature storage. Engineered to deliver dependable performance down to -100°C, it gives teams greater confidence in sample protection, operational continuity and long-term freezer management. From its advanced refrigeration architecture to its intelligent monitoring capabilities, the VAULT100 PRO is designed to help protect critical biological materials while simplifying the day-to-day demands of cold storage.
At the heart of the system is Quick Change Technology, an innovative service platform that helps reduce downtime when maintenance is required. Traditional ultra-low temperature freezers can involve lengthy refrigeration repairs that place samples at risk and disrupt laboratory operations. The VAULT100 PRO is engineered with a bolt-on condenser assembly that allows qualified service personnel to replace critical refrigeration components in approximately one hour. By making service faster and more predictable, this design helps laboratories maintain continuity and better protect valuable samples during service events.
The freezer is powered by Stirling engine technology, which uses only two moving parts and helps eliminate many of the failure points associated with compressor-based systems. This simplified architecture supports industry-leading reliability, reduced operational risk and a faster mean time to repair. Backed by a six-year engine and thermosiphon warranty, the VAULT100 PRO is built to support maximum uptime and give laboratories greater peace of mind when storing irreplaceable materials.
Performance intelligence is another defining advantage. A 10-inch touchscreen interface gives users access to real-time freezer health monitoring, predictive analytics, comprehensive alarms and BACnet communication capability. Instead of relying only on after-the-fact alerts, teams can monitor freezer health and identify potential concerns earlier. This supports a more proactive approach to cold storage management, helping laboratories reduce surprises, streamline oversight and maintain confidence in the storage environment.
The VAULT100 PRO also delivers thoughtful thermal design improvements that help protect samples during everyday use. A newly engineered vaulted ceiling captures and manages warm air intrusion during access events, reducing the impact of door openings on stored materials and supporting improved temperature uniformity. Redesigned inner doors enhance heat transfer throughout the cabinet, helping maintain consistent conditions and support faster recovery after door openings. An integrated manual vacuum breaker helps equalize pressure after access events, making the freezer easier to reopen while reducing peak temperature variation.
For laboratories balancing space, capacity and efficiency, the VAULT100 PRO offers high-density storage in a compact footprint. With 795 liters of storage capacity, it can accommodate up to 600 standard 2-inch storage boxes, with an optional 700-box configuration available. This helps organizations store more samples without expanding their facility footprint, making it easier to maximize valuable lab space while supporting growing research and storage needs.
Sustainability is built into the platform without sacrificing performance. The VAULT100 PRO uses up to 45% less energy than comparable ENERGY STAR® rated freezers, relies on 100% natural refrigerants and produces significantly less heat than compressor-based systems. By reducing energy consumption and HVAC burden, it can help lower operating costs while supporting green laboratory programs and broader sustainability initiatives.
From sample protection and serviceability to storage density and sustainability, the VAULT100 PRO brings together the capabilities laboratories need in a next-generation upright ULT freezer. It is engineered to help teams reduce downtime, improve operational confidence, manage costs and protect the work that matters most.
Product Specifications:
| Specification | Value |
| Storage Capacity | 795 L (28 cu. ft.) |
| Temperature Range | -100°C to -20°C |
| Capacity | Up to 600 standard 2″ boxes |
| Energy Consumption | 6.6 kWh/day at -75°C |
| Recovery Time | 26 minutes to steady-state at -80°C |
| Noise Level | Less than 42 dB(A) |
| Power Requirements | Universal 120-240 VAC, 50/60 Hz |
| Connectivity | BACnet-compatible Ethernet option |
| Refrigerant | Natural R-170 (Ethane) |
| Warranty | 6-Year Engine & Thermosiphon Coverage |















