The Yamato ULF-801UP is a 792 L (28 cu.ft) upright ultra-low freezer reaching −40 °C to −80 °C, the maximum-capacity vertical unit in the ULF Platinum line with four adjustable shelves across five compartments and a door-mounted touch-screen controller. The Yamato ULF-801UP delivers large-scale −80 °C storage with organized walk-up access, adding Hi/Low alarms with email and SMS notification, USB/FTP data logging, and VNC remote access. It is the flagship upright for core facilities and biobanks consolidating a large frozen collection into a single monitored cabinet.
Key Specifications
| Spec | Value |
| Model (focus) | Yamato ULF-801UP (ULF Platinum upright series) |
| Style | Upright / vertical |
| Temperature range | −40 °C to −80 °C |
| Capacity | 792 L / 28 cu.ft |
| Shelving | 4 adjustable shelves (5 compartments) |
| Rack capacity | 30 |
| Refrigeration | Cascade type, two hermetic compressors |
| Refrigerants | CFC-free R-508B and R-404A |
| Control | Door-mounted touch-screen; 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 |
| Internal dimensions | 38 × 25 × 51.25 in (96 × 63 × 130 cm) |
| External dimensions | 54 × 37 × 79.5 in (137 × 93 × 201 cm) |
| Electrical | 115V 60Hz 1-phase (208V / 230V / 220V options) |
Application Profile
At 28 cu.ft and 30 racks, the ULF-801UP consolidates what would otherwise be several smaller freezers into one monitored upright — the right move for core facilities and biobanks that want fewer cabinets to maintain, alarm, and back up. Its five inner-door compartments behind four adjustable shelves localize access so pulling one box does not warm the entire inventory, which protects cell lines, protein and enzyme stocks, nucleic acids, viral banks, and specimen archives filed for daily retrieval (see cold-chain-sample-storage).
The cascade refrigeration stages two hermetic compressors, low stage on demand, to hold this large volume at ultra-low temperature while keeping system pressure low and dissipating heat through an air-cooled condenser. This flagship model is rated to −80 °C (versus −85 °C on the smaller uprights), a deliberate trade for its larger, harder-to-cool cabinet. The door-mounted touch-screen Platinum controller supplies the compliance layer a big archive needs — email/SMS alarms, downloadable logs, and VNC remote access to document the cold chain and respond to excursions early (see cold-storage-selection). CO₂/LN₂ back-up is strongly advisable at this inventory value and is available as an option.
Frequently Asked Questions
What temperature range and capacity does the ULF-801UP provide? −40 °C to −80 °C in a 792 L / 28 cu.ft upright cabinet with four adjustable shelves across five compartments and a 30-rack capacity.
Why is this model −80 °C rather than −85 °C? The 28 cu.ft cabinet is the largest upright in the line; its rated floor is −80 °C, while the smaller ULF-401UP reaches −85 °C. Both are ultra-low freezers on the same cascade platform.
How does it monitor and alarm? A door-mounted touch-screen controller with Hi/Low alarms via email and SMS, dry-contact alarm and power-failure relays, a battery-backed alarm, and downloadable temperature logs (USB/FTP) plus VNC remote access.
Can it replace several smaller freezers? Yes — at 28 cu.ft and 30 racks it consolidates multiple units into one monitored cabinet, reducing the number of alarms, maintenance points, and back-up systems to manage.
Is defrost automatic? No — manual defrost, standard for −80 °C archival storage.
Ordering & Configuration
quote-based. The ULF-801UP is a capital ultra-low freezer sold through a quote. At quote we confirm electrical service (115 V standard, or 208/220/230 V), floor space and ventilation clearance for the 137 × 93 × 201 cm cabinet, shelf/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-801UP for your storage program.
ULF Platinum upright ultra-low, by capacity: the ULF-801UP (792 L / 28 cu.ft, 30 racks, −80 °C) is the flagship upright; the ULF-401UP (370 L / 13 cu.ft, −85 °C) is the mid-size upright, and chest ULF-201CP/601CP units trade walk-up access for door-opening cold retention. All share the Platinum touch-screen controller and networked alarming.
