Chest Style Ultra Low Freezers -40°C To -80°C, 21Cu.Ft., Manual Defrost Overview
The Chest Style Ultra Low Freezers -40°C To -80°C, 21Cu.Ft., Manual Defrost (model ULF701C) is a Yamato Scientific ultra-low laboratory freezer delivering a -40°C to -80°C range across 21 cu.ft. of storage. Standard equipment covers a microprocessor digital controller, audible and visual alarms, remote alarm contacts, battery alarm back-up, and a 1/2-inch access port. LabSupplies.com supplies this freezer as an authorized dealer.
Construction pairs a 14-gauge zinc-coated galvanized steel chamber with a 16-gauge steel exterior finished in powder-coated cool gray. Refrigeration runs on a cascade system built around two hermetic compressors, charged with CFC-free R-508B and R-404A. An air-cooled condenser drives two heavy-duty fans, so no liquid coolant is required.
Electrical configurations span 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50/60 Hz single-phase. Exterior dimensions measure 91 × 36 × 49 inches at a shipping weight of 1,075 lbs. Built in the USA and UL Listed, this unit holds up to 36 racks within a 594 L interior.
Key Features
- Digital dual-display control: shows set point and chamber temperature, with a scan button for setting and a tamper-proof lockout.
- Cascade refrigeration: two hermetic compressors reach the -40°C to -80°C range using CFC-free R-508B and R-404A.
- Air-cooled condenser: two heavy-duty fans remove heat, eliminating any liquid coolant requirement.
- Battery-backed alarm system: audible and visual signals on mechanical or electrical failure, over- and under-temperature settings, alarm silencing, battery test switch, and a relay for remote hook-up.
- Automatic power failure recovery: a timer system restarts the unit after a power interruption.
- 36-rack capacity: 594 L of usable interior space within an 81" × 21.5" × 21" chamber.
How to Choose the Right Ultra-Low Freezer
Matching an ultra-low freezer to a lab depends on sample volume, the temperature your protocols demand, and the power available at the install site. Review these axes before specifying a unit.
- Capacity: 21 cu.ft. (594 L) and a 36-rack limit determine how many sample boxes you can consolidate into one footprint.
- Temperature range: a -40°C to -80°C span supports long-term storage of biologicals, enzymes, and other temperature-sensitive material.
- Control type: a digital dual-display controller with tamper-proof lockout protects set points from accidental changes.
- Voltage: confirm site power against the 115V, 208V, 230V (60 Hz) or 220V (50/60 Hz) single-phase options.
- Footprint: chest-style exterior dimensions of 91 × 36 × 49 inches and a 1,075 lb weight dictate floor space and load planning.
- Safety and continuity: battery-backed alarms, remote alarm contacts, and automatic power-failure recovery guard samples during faults.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 21 cu.ft. |
| Temperature Range | -40°C to -80°C |
| Defrost | Manual |
| Interior Capacity | 594 L / 21 cu.ft. |
| Rack Capacity | 36 racks |
| Interior Dimensions | 81" × 21.5" × 21" (205 × 54 × 53 cm) |
| Exterior Dimensions | 91" × 36" × 49" (231 × 91 × 124 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) | 797059929900 |
| Shipping Weight | 1075 lbs |
| Dimensions (L × W × H) | 101 × 43 × 53 in |
| Component Size | 21 CF |
| Other Certification | UL Listed |
Available Sizes and Configurations
| SKU | Configuration | Pack |
|---|---|---|
| ULF-701C | EA | EA |
Documentation
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Why Buy From LabSupplies.com
LabSupplies.com is an authorized Yamato Scientific dealer, so every ULF701C ships as a genuine unit backed by the manufacturer warranty. Order directly online and our lab-equipment specialists stand ready for any specification question.
- Authorized Yamato Scientific dealer: genuine equipment with full manufacturer warranty coverage.
- In stock: ready to ship now from USA inventory.
- Built in the USA: manufactured domestically and UL Listed.
- Specialist support: dedicated lab-equipment specialists answer technical and spec questions before you order.
Frequently Asked Questions
What temperature range does the Yamato ULF701C reach?
The ULF701C operates across a -40°C to -80°C range. A cascade refrigeration system with two hermetic compressors and CFC-free R-508B and R-404A refrigerants achieves these ultra-low temperatures.
How much storage capacity does this freezer provide?
This unit offers 21 cu.ft. (594 L) of interior capacity and holds up to 36 racks. Interior dimensions are 81" × 21.5" × 21" (205 × 54 × 53 cm).
What are the voltage and power requirements?
Electrical options cover 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50/60 Hz single-phase. Confirm your site power before specifying the configuration you need.
What materials are used in the cabinet construction?
The chamber is 14-gauge zinc-coated galvanized steel. An exterior of 16-gauge steel is finished in powder-coated cool gray.
How does the freezer protect samples during a power failure?
A battery-backed alarm emits audible and visual signals on mechanical or electrical failure, and an automatic timer system restarts the unit once power returns. Remote alarm contacts allow connection to building monitoring.
What are the exterior dimensions and shipping weight?
Exterior dimensions measure 91" × 36" × 49" (231 × 91 × 124 cm). Shipping weight is 1,075 lbs, so plan floor space and load handling accordingly.