The Yamato ULF-601CP is a 480 L (17 cu.ft) chest-style ultra-low freezer reaching −40 °C to −85 °C with a 36-rack capacity, built on the ULF Platinum platform with touch-screen control and cascade two-compressor refrigeration. The Yamato ULF-601CP delivers high-volume −80 °C storage in a top-opening cabinet, adding networked Hi/Low alarms with email and SMS notification, USB/FTP data logging, and VNC remote access. It is the large-capacity chest unit for core facilities, biobanks, and busy research groups holding substantial frozen inventories.
Key Specifications
| Spec | Value |
| Model (focus) | Yamato ULF-601CP (ULF Platinum chest series) |
| Style | Chest / horizontal, top opening |
| Temperature range | −40 °C to −85 °C |
| Capacity | 480 L / 17 cu.ft |
| Rack capacity | 36 |
| Refrigeration | Cascade type, two hermetic compressors |
| Refrigerants | CFC-free R-508B and R-404A |
| 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 |
| Internal dimensions | 69 × 20 × 21 in (175 × 50 × 53 cm) |
| External dimensions | 81.25 × 33.5 × 48.5 in (206 × 85 × 123 cm) |
| Electrical | 115V 60Hz 1-phase (208V / 230V / 220V options) |
Application Profile
At 17 cu.ft and 36 racks, the ULF-601CP is a workhorse for facilities that store frozen biological material at scale — cell and tissue banks, purified proteins, nucleic acids, viral stocks, and clinical specimen archives that must hold −80 °C indefinitely. Its cascade refrigeration stages two hermetic compressors so the low stage runs only on demand, keeping system pressure low, dissipating heat efficiently through an air-cooled condenser, and extending compressor life while pulling a full product load down quickly (see cold-chain-sample-storage).
The chest format matters most at this capacity: top-opening cabinets hold cold on the door seal because cold air sinks and stays in the box, so a large chest recovers faster after loading and protects the middle of a big inventory during routine access. The Platinum controller turns that hardware into a monitored asset — email/SMS alarms, downloadable logs, and VNC access let a facility document that a valuable archive held overnight and respond to an excursion before it becomes a loss (see cold-storage-selection). CO₂/LN₂ back-up and racks are available for irreplaceable collections.
Frequently Asked Questions
What temperature and capacity does the ULF-601CP provide? −40 °C to −85 °C in a 480 L / 17 cu.ft chest cabinet with a 36-rack capacity.
What refrigeration does it use? Cascade two-compressor refrigeration with CFC-free R-508B and R-404A refrigerants and an air-cooled condenser, so no liquid coolant is required.
How does it protect a large frozen inventory? Touch-screen control 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.
Chest or upright at this size? Choose the chest ULF-601CP for best cold retention on door openings and fast recovery under a large load; choose an upright when adjustable-shelf vertical access is the priority.
Is defrost automatic? No — the ULF Platinum ultra-low freezers use manual defrost, standard practice for −80 °C archival storage.
Ordering & Configuration
quote-based. The ULF-601CP 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 206 × 85 × 123 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-601CP for your storage program.
ULF Platinum chest ultra-low, by capacity: the ULF-601CP (480 L / 17 cu.ft, 36 racks) is the high-volume chest unit; the ULF-201CP (142 L / 5 cu.ft) is the compact chest option, and the upright ULF-401UP/801UP trade door-opening cold retention for adjustable-shelf vertical access. All share the Platinum touch-screen controller and networked alarming.
