Chest Style Ultra Low Freezers -40°C To -80°C, 27 cu.ft., Manual Defrost Overview
The Chest Style Ultra Low Freezers -40°C To -80°C, 27 cu.ft., Manual Defrost (model ULF901C) is a laboratory ultra-low freezer from Yamato Scientific, delivering 766 L of storage across a -40°C to -80°C range. LabSupplies.com supplies this unit as an authorized dealer. A microprocessor digital controller manages set point and chamber temperature on a dual display, with scan-button setting and a tamper-proof lockout.
Chamber walls use 14-gauge zinc-coated galvanized steel, while the exterior is 16-gauge steel finished in powder-coated cool gray. Cascade refrigeration pairs two hermetic compressors with CFC- and HCFC-free R-508B and R-404A refrigerants. Air-cooled condensing runs on two heavy-duty fans, so no liquid coolant is required.
Electrical options cover 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50/60 Hz single-phase. Exterior dimensions measure 98 × 36 × 43.5 inches, and the unit ships at 1,125 lbs. Made in the USA and UL Listed, the freezer includes battery-backed alarms and automatic power-failure recovery.
Key Features
- Digital control with dual display: set point and chamber temperature read simultaneously, with a scan button for setting and tamper-proof lockout.
- Cascade refrigeration: two hermetic compressors run CFC- and HCFC-free R-508B and R-404A refrigerants for -40°C to -80°C performance.
- Battery-operated alarm system: audible and visual signals on mechanical or electrical failure, with over- and under-temperature settings, silencing switch, and battery test switch.
- Remote alarm relay: a built-in relay connects the freezer to a facility monitoring system.
- Automatic power-failure recovery: a timer system restarts the unit after power is restored.
- 48-rack capacity: 766 L of interior volume with a standard 1/2-inch access port.
How to Choose the Right Ultra-Low Freezer
Matching an ultra-low freezer to a lab means weighing sample volume, the target storage temperature, and the realities of your facility's power and floor space. Use these axes to narrow the decision.
- Capacity: confirm the interior volume and rack count fit your sample inventory; this model holds 766 L (27 cu.ft.) and 48 racks.
- Temperature range: verify the unit reaches your lowest required set point. A -40°C to -80°C range suits long-term biological and reagent storage.
- Control type: digital dual-display control with lockout gives repeatable set points and guards against accidental changes.
- Voltage: match the unit to available site power; options span 115V, 208V, 230V at 60 Hz and 220V at 50/60 Hz, single-phase.
- Footprint: a chest format requires top clearance for loading; confirm the 98 × 36 × 43.5-inch exterior fits the room.
- Safety and monitoring: battery-backed alarms, remote relay, and automatic power-failure recovery protect samples during faults.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 27 cu.ft. |
| Temperature Range | -40°C to -80°C |
| Defrost | Manual |
| Interior Capacity | 766 L / 27 cu.ft. |
| Rack Capacity | 48 racks |
| Interior Dimensions | 67" × 23" × 31.25" (170 × 57 × 79 cm) |
| Exterior Dimensions | 98" × 36" × 43.5" (248 × 91 × 110 cm) |
| Temperature Control System | Digital control with dual display (set point and chamber temperature); scan button for temperature setting; tamper-proof lockout |
| Refrigeration System | Cascade type — two hermetic compressors |
| Refrigerant | CFC-free R-508B and R-404A (CFC- & HCFC-free) |
| Condenser | Air-cooled with two heavy-duty fans; no liquid coolant required |
| Alarm System | Battery-operated alarm emits an audible and visual signal on mechanical or electrical failure; over- and under-temperature settings, alarm silencing switch, and battery test switch; relay provided for remote alarm hook-up |
| Power Failure Recovery | Automatic timer system restarts the unit after a power failure |
| Electrical Requirements | 115V / 208V / 230V, 60 Hz, 1-phase; 220V, 50/60 Hz, 1-phase |
| Optional Accessories | Chart recorder; CO₂ and LN₂ back-up system; racks; cold safety gloves |
| Material | Chamber is 14-ga. Zinc coated galvanized steel. Exterior is 16-ga. steel. Power coated cool gray |
| Country of Origin | USA |
| GTIN (Barcode) | 797059929924 |
| Shipping Weight | 1125 lbs |
| Dimensions (L × W × H) | 101 × 43 × 53 in |
| Component Size | 27 CF |
| Other Certification | UL Listed |
Available Sizes and Configurations
| SKU | Configuration | Pack |
|---|---|---|
| ULF-901C | EA | EA |
Documentation
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Why Buy From LabSupplies.com
LabSupplies.com is an authorized Yamato Scientific dealer, so every ULF901C ships as a genuine unit backed by the manufacturer warranty. Order directly and our lab-equipment specialists stand ready for spec and configuration questions.
- Authorized Yamato Scientific dealer: genuine equipment with full manufacturer warranty.
- In stock: ready to order without backorder delays.
- Ships from USA inventory: direct domestic fulfillment.
- Lab-equipment specialists: dedicated support for technical and installation questions.
Frequently Asked Questions
What temperature range does the ULF901C reach?
The ULF901C operates from -40°C to -80°C. Cascade refrigeration with two hermetic compressors and CFC- and HCFC-free R-508B and R-404A refrigerants maintains the set point across that range.
How much storage capacity does this freezer offer?
Interior capacity is 766 L, or 27 cu.ft., holding up to 48 racks. Interior dimensions measure 67 × 23 × 31.25 inches (170 × 57 × 79 cm).
What are the exterior dimensions and shipping weight?
Exterior dimensions are 98 × 36 × 43.5 inches (248 × 91 × 110 cm). The unit weighs 1,125 lbs, so confirm floor loading and top clearance for chest-style loading before installation.
What electrical supply does the ULF901C require?
Electrical options include 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50/60 Hz single-phase. Match the configuration to your available site power.
What materials is the freezer built from?
The chamber is 14-gauge zinc-coated galvanized steel. Its exterior is 16-gauge steel finished in powder-coated cool gray, and the condenser is air-cooled with two heavy-duty fans.
How does the freezer protect samples during a power failure?
A battery-operated alarm signals mechanical or electrical failures audibly and visually. An automatic timer system restarts the unit once power returns, and a remote alarm relay links to facility monitoring.