The Yamato ULF-801CP is a large-capacity 626 L (22 cu.ft) chest-style ultra-low freezer reaching −40 °C to −85 °C, built on the ULF Platinum platform with cascade two-compressor refrigeration and touch-screen control. The Yamato ULF-801CP pairs quick pull-down with the full Platinum monitoring suite — Hi/Low alarms with email and SMS notification, USB/FTP data logging, and VNC remote access — and its top-opening chest geometry keeps dense cold air in the box on every lid opening. It consolidates a high-volume −80 °C repository for core facilities, biobanks, and larger research groups.
Key Specifications
| Spec | Value |
| Model (focus) | Yamato ULF-801CP (ULF Platinum chest series) |
| Style | Chest / horizontal, top opening |
| Temperature range | −40 °C to −85 °C |
| Capacity | 626 L / 22 cu.ft |
| Rack capacity | 36 |
| Refrigeration | Cascade type, two hermetic compressors |
| Refrigerants | CFC-free R-508B and R-404A |
| Condenser | Air-cooled, two heavy-duty fans (no liquid coolant) |
| Control | Touch-screen; displays set point + chamber temp |
| Alarming | Hi/Low alarm with email + SMS; dry-contact alarm & power-fail relays; battery back-up |
| Data | Temperature graph, USB/FTP logging, VNC remote access, multi-level security |
| Defrost | Manual |
| Access port | ½" porthole (left side) with plug |
| Construction | 14-ga zinc-coated galvanized chamber; 16-ga steel exterior, powder-coated cool gray |
| Power failure | Automatic timer restart |
| Internal dimensions | 67 × 19 × 30 in (170 × 48 × 76 cm) |
| External dimensions | 98 × 36 × 43.5 in (248 × 91 × 110 cm) |
| Electrical | 115V / 208V / 230V, 60 Hz, 1 phase (also 220V 50/60 Hz) — confirm at order |
Application Profile
The ULF-801CP addresses the high-volume end of chest ultra-low storage, packing 22 cu.ft at −40 to −85 °C into a single top-opening cabinet. Chest geometry matters here because the coldest, densest air stays layered in the box when the lid is raised — for a repository this large, that stability protects thousands of stored samples from thermal excursion every time a technician retrieves a box. The 36-rack capacity suits core facilities, biobanks, and larger research groups consolidating cold-chain storage into one footprint (see cold-chain-sample-storage).
The cascade refrigeration stages two hermetic compressors with an energy-saving low stage that runs only on demand, holding low system pressure to reach and sustain −85 °C while extending compressor life; heat is rejected through the twin-fan air-cooled condenser, so no liquid coolant plumbing is needed. The touch-screen Platinum controller adds the monitoring layer that modern facilities require — email/SMS alarms, downloadable logs, and VNC access to prove the cold chain held and to respond before an excursion becomes a loss (see cold-storage-selection). An automatic timer restarts the unit after a power interruption, a gasket-channel heater harness limits frost on the seal, and CO₂/LN₂ back-up is available for critical inventory.
Frequently Asked Questions
How much does the ULF-801CP hold, and how cold? 626 L / 22 cu.ft at −40 °C to −85 °C with a 36-rack capacity — a high-volume chest archive.
Why a chest rather than an upright for a large biobank? The horizontal top-opening design retains cold air when opened, giving steadier internal temperatures for large, frequently accessed repositories.
What monitoring does the Platinum package include? A touch-screen controller with dual set-point/chamber display, Hi/Low alarms via email and SMS, dry-contact alarm and power-failure relays, a battery-backed alarm, a viewable temperature graph, USB/FTP data logging, and VNC remote access.
What refrigeration does it use? Cascade two-compressor refrigeration with CFC-free R-508B and R-404A and a twin-fan air-cooled condenser — no liquid coolant required — plus automatic restart after a power failure.
Is defrost automatic? No — manual defrost, standard for −80 °C archival storage.
Ordering & Configuration
quote-based. The ULF-801CP is a capital ultra-low freezer sold through a quote. At quote we confirm electrical service (115 V standard, or 208/220/230 V) given the larger unit's load, floor space and condenser-airflow clearance for the 248 × 91 × 110 cm cabinet, rack configuration, and CO₂/LN₂ back-up needs. Warranty terms are confirmed with the quote, and lead time is provided at quotation. Request a quote to configure the ULF-801CP for your storage program.
ULF Platinum chest ultra-low, by capacity: the ULF-801CP (626 L / 22 cu.ft, −85 °C) is a high-volume chest; drop to the ULF-401CP (340 L / 12 cu.ft) for mid-size needs, or move to an upright ULF-601UP when floor space is more constrained than ceiling clearance. All share the Platinum touch-screen controller and networked alarming.
