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) from Yamato Scientific is a 21 cu.ft. laboratory ultra-low freezer holding samples across a -40°C to -80°C range. A microprocessor digital controller, audible and visual alarms, remote alarm contacts, alarm battery backup, and a 1/2" access port ship standard. LabSupplies.com supplies this unit as an authorized dealer.
Chest construction pairs a 14-gauge zinc-coated galvanized steel chamber with a 16-gauge steel exterior finished in powder-coated cool gray. A cascade refrigeration system runs two hermetic compressors with CFC-free R-508B and R-404A refrigerants. Air-cooled condensing uses two heavy-duty fans, so no liquid coolant is required to reach -80°C.
Interior volume measures 594 L and accepts up to 36 racks. The freezer accepts 115V, 208V, or 230V at 60 Hz single-phase, plus a 220V 50/60 Hz single-phase option. Made in the USA, the unit weighs 1075 lbs and carries UL Listed certification for laboratory installation.
Key Features
- Cascade refrigeration: two hermetic compressors with CFC- and HCFC-free R-508B and R-404A refrigerants reach the -80°C floor.
- Digital temperature control: dual display shows set point and chamber temperature, with a scan button for setting and a tamper-proof lockout.
- Battery-backed alarm system: audible and visual signals fire on mechanical or electrical failure, with over- and under-temperature settings, a silencing switch, and a battery test switch.
- Remote alarm relay: an onboard relay supports hook-up to a building or central monitoring system.
- Automatic power-failure recovery: a timer system restarts the freezer after a power interruption.
- Air-cooled condenser: two heavy-duty fans cool the system with no liquid coolant required.
How to Choose the Right Ultra-Low Freezer
Matching an ultra-low freezer to a lab means weighing sample volume, target temperature, site power, and footprint together. Use the criteria below to confirm this 21 cu.ft. chest unit fits your workflow .
- Capacity: 594 L of interior volume and 36-rack support set how many samples one cabinet stores; size to current and projected inventory.
- Temperature range: a -40°C to -80°C span covers long-term cryogenic storage of cells, tissue, and biologics; confirm your protocols stay within it.
- Control type: microprocessor digital control with dual display and tamper-proof lockout protects set points in shared labs.
- Voltage: verify your circuit against the 115V, 208V, or 230V 60 Hz options, or the 220V 50/60 Hz alternative, before installation.
- Footprint: chest-style geometry measures 101 × 43 × 53 in shipping; map the exterior against doorways and aisle clearance.
- Safety monitoring: battery-backed alarms and a remote relay matter when irreplaceable samples need fail-safe oversight.
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
More in This Series
- Platinum Upright Style Ultra Low Freezers -40°C To -85°C, 25 cu.ft., Manual Defrost
- Platinum Upright Style Ultra Low Freezers -40°C To -85°C, 22 cu.ft., Manual Defrost
- Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 17 cu.ft., Manual Defrost
- Upright Style Ultra Low Freezers -40°C To -80°C, 28 cu.ft., Manual Defrost
- Upright Style Ultra Low Freezers -40°C To -80°C, 31 cu.ft., Manual Defrost
- Upright Style Ultra Low Freezers -40°C To -85°C, 25 cu.ft., Manual Defrost
View all Ultra-Low Temperature Freezers →
Why Buy From LabSupplies.com
LabSupplies.com is an authorized Yamato Scientific dealer, so every ULF701C ships as a genuine factory unit backed by the manufacturer warranty. Our lab-equipment specialists answer spec and installation questions before you order.
- Authorized Yamato Scientific dealer: genuine unit with full manufacturer warranty.
- In stock: ready to order directly, no waitlist.
- Ships from USA inventory: domestic fulfillment on this USA-made freezer.
- Specialist support: dedicated lab-equipment team for technical and configuration questions.
Frequently Asked Questions
What temperature range does the ULF701C maintain?
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 reaches the -80°C floor.
What is the storage capacity of this freezer?
It provides 594 L (21 cu.ft.) of interior volume and supports up to 36 racks. Interior dimensions measure 81" × 21.5" × 21" (205 × 54 × 53 cm).
What power supply does the ULF701C require?
The unit accepts 115V, 208V, or 230V at 60 Hz single-phase, plus a 220V 50/60 Hz single-phase option. Confirm your circuit against these ratings before installation.
What are the exterior dimensions and weight?
Exterior dimensions are 91" × 36" × 49" (231 × 91 × 124 cm), with a shipping footprint of 101 × 43 × 53 in. The freezer weighs 1075 lbs.
What materials are used in the chamber and exterior?
The chamber is built from 14-gauge zinc-coated galvanized steel. Its exterior uses 16-gauge steel finished in powder-coated cool gray.
What alarm and backup features protect samples?
A battery-operated alarm gives audible and visual signals on mechanical or electrical failure, with over- and under-temperature settings, a silencing switch, and a battery test switch. A relay supports remote alarm hook-up, and an automatic timer restarts the unit after power loss.
