The ULF-601C is a chest-style (horizontal, top-opening) ultra-low freezer in Yamato's STANDARD ULF Series, holding 480 L (17 cu.ft.) of sample volume across a top-opening horizontal chamber rated to -40°C to -85°C / -40°F to -121°F. Cascade refrigeration with two hermetic compressors delivers rapid pull-down and stable ultra-low storage for long-term biological and clinical sample archives, with a battery-backed audible/visual alarm and remote-alarm relay standard. Rated rack capacity: 36 racks.
This is capital cold-storage equipment shipped LTL freight. Pricing, voltage/plug configuration, freight, and lead time are confirmed on quote. Request a quote to proceed.
Key Specifications
| SKU | ULF-601C |
| Style | Chest-style (horizontal, top-opening) |
| Temperature range | -40°C to -85°C / -40°F to -121°F |
| Capacity | 480 L (17 cu.ft.) |
| Rack capacity | 36 racks |
| Interior dimensions (W×D×H) | 69" x 20" x 21" / 175 x 50 x 53 cm |
| Exterior dimensions (W×D×H) | 81.25" x 33.5" x 48.5" / 206 x 85 x 123 cm |
| Refrigerant | CFC-free R-508B and R-404A (cascade system, two hermetic compressors) |
| Voltage | 115V / 208V / 230V, 60Hz, 1 phase; 220V, 50/60Hz, 1 phase |
| Brochure source | ULF Series Ultra-Low Freezer (BRO-ULF-2025) |
Application Profile
Per the ULF brochure, primary uses for the ULF Series are clinics, research, small laboratories, hospital rooms, and medical clinics. At 480 L (17 cu.ft.), the ULF-601C suits long-term biological sample archiving — cell lines, tissue, serum, plasma, and DNA/RNA libraries — alongside cold-chain and biobank storage at research-core and clinical scale. It also serves vaccine, reagent, and enzyme storage that requires validated ultra-low temperatures, and bulk / high-density storage where the top-opening horizontal format minimizes cold-air loss on access.
Design Architecture
Refrigeration. A cascade refrigeration system with two large hermetic compressors drives rapid pull-down of the product load. The system is designed to hold internal pressure very low, which limits heat build-up, improves running efficiency, and extends compressor life; an energy-saving low stage operates only on demand. Heat is dissipated by an air-cooled condenser with two heavy-duty fans — no liquid coolant required. Refrigerants are CFC-free R-508B and R-404A.
Temperature control & alarms. Digital temperature control with dual display shows set point and chamber temperature. A scan button sets temperature with a tamper-proof lockout. A battery-operated alarm emits audible and visual signals on mechanical or electrical failure, with over/under-temperature settings, an alarm-silence switch, a battery-test switch, and a relay for remote-alarm hook-up.
Construction. Chamber is 14-ga. zinc-coated galvanized steel; exterior is 16-ga. steel with a powder-coated cool-gray finish. Frost and ice build-up along the gasket is minimized by a heater harness beneath the channel. An automatic timer system restarts the unit after a power failure. Interior organization: 36 racks. Made in the USA.
Optional accessories (brochure): chart recorder, CO₂ and LN₂ back-up system, racks, and cold-safety gloves.
Frequently Asked Questions
What temperature range does the ULF-601C reach? -40°C to -85°C (-40°F to -121°F), delivered by a cascade refrigeration system with two hermetic compressors.
How much storage capacity does the ULF-601C have? 480 L (17 cu.ft.) in a chest-style, top-opening horizontal chamber, with a rated capacity of 36 racks — the high-volume end of the ULF chest range.
Is the ULF-601C available in 230V? Yes. It supports 115V / 208V / 230V at 60Hz, 1 phase, and 220V at 50/60Hz, 1 phase. Confirm voltage and plug configuration on quote.
What refrigerant does the ULF-601C use? CFC-free R-508B and R-404A in a cascade system with two large hermetic compressors, heat dissipated by an air-cooled condenser with two heavy-duty fans — no liquid coolant required.
Does the ULF-601C have a temperature alarm? Yes. A battery-operated alarm gives audible and visual signals on mechanical or electrical failure, with over/under-temperature settings, an alarm-silence switch, a battery-test switch, and a relay for remote-alarm hook-up.
Ordering & Configuration
The ULF-601C ships as a complete, factory-charged ultra-low freezer with digital control, dual display, and the battery-backed alarm system described above. Racks and back-up systems (CO₂ / LN₂) are available as options per the brochure.
As a Type-A, quote-based capital item, the unit is rated -40°C to -85°C / -40°F to -121°F; confirm your temperature target, plus rack/insert configuration and any back-up (CO₂ / LN₂) or chart-recorder options, against that spec. Confirm the following on quote:
- Voltage & plug — 115V / 208V / 230V, 60Hz, 1 phase; 220V, 50/60Hz, 1 phase
- Freight — LTL freight (capital cold-storage equipment); confirm dock/liftgate and placement access
- Lead time and warranty terms
Request a quote to configure voltage, freight, and accessories for the ULF-601C. Because this is a Type-A capital item, checkout is quote-based — our team confirms specification and total delivered cost before order.
