Temporarily unavailable. Yamato Scientific America has temporarily suspended sales of the ULF and LTF freezer series to comply with EPA and CARB refrigerant requirements. Yamato is replacing them with the VUF and VLF series.
Why order the ULF501UP from LabSupplies.com
Platinum Upright Style Ultra Low Freezers -40°C To -85°C, 18 cu.ft., Manual Defrost Overview
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 using two hermetic compressors drives the deep pull-down, while CFC-free R-508B and R-404A refrigerants run without HCFCs. Air-cooled condensing with two heavy-duty fans removes the need for liquid coolant.
Power options span 115V, 208V, and 230V at 60 Hz single-phase, plus 220V at 50/60 Hz. Exterior dimensions measure 40 × 36 × 79.5 inches, and the unit ships at 900 lbs. Built in the USA and UL Listed, the freezer arrives with automatic power-failure recovery and a 1/2-inch access port.
Key Features
- Touch-screen controller: displays set point and chamber temperature with Hi/Low alarms, email and SMS notification, and a viewable temperature graph.
- Data logging and remote access: download logs via USB or FTP, and monitor the unit through VNC remote access from a PC or smart device.
- Cascade refrigeration: two hermetic compressors with air-cooled condensing and CFC-/HCFC-free R-508B and R-404A refrigerants.
- Battery-backed alarm system: audible and visual signals on mechanical or electrical failure, plus over/under-temperature settings, a silencing switch, and a remote-alarm relay.
- Power-failure recovery: an automatic timer restarts the unit after power is restored.
How to Choose the Right Ultra-Low Freezer
Matching an ultra-low freezer to your lab means weighing sample volume against your facility's power and floor space. Use these criteria to compare upright units.
- Capacity: the ULF501UP offers 18 cubic feet (505 L) and holds up to 20 racks — size this to your sample inventory and growth.
- Voltage: confirm whether your site runs 115V, 208V, 230V, or 220V single-phase before specifying the unit.
- Footprint: exterior dimensions of 40 × 36 × 79.5 inches and a 900 lb weight determine placement and floor loading.
Specifications
| Specification | Detail |
|---|---|
| Capacity | 18 cu.ft. |
| Temperature Range | -40°C to -85°C |
| Defrost | Manual |
| Interior Capacity | 505 L / 18 cu.ft. |
| Rack Capacity | 20 racks |
| Shelving | 4 adjustable shelves (5 compartments) |
| Interior Dimensions | 23" × 26" × 51.25" (58 × 66 × 130 cm) |
| Exterior Dimensions | 40" × 36" × 79.5" (101 × 91 × 201 cm) |
| Temperature Control System | Touch-screen control displaying set point and chamber temperature; Hi/Low alarm with email and SMS notification; alarm-relay and power-failure dry contacts; battery back-up; viewable temperature graph; data logging downloadable via USB or FTP; multi-level security; VNC remote access via PC or smart devices |
| Access Port | 1/2" porthole in the left-hand side of the cabinet, with plugs |
| 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 | 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) | 797059930517 |
| Shipping Weight | 900 lbs |
| Shipping Dimensions (L × W × H) | 46 × 43 × 86 in |
| Component Size | 18 CF |
| Other Certification | UL Listed |
| Warranty | 1 year (Yamato Scientific America) |
| Service | Calibration and preventive maintenance on site by Yamato-certified technicians or at Yamato's California service center |
Compare ULF Series Models
| Model | Capacity | Temperature range | Racks | Interior (W × D × H) | Exterior |
|---|---|---|---|---|---|
| ULF401UP | 13 cu.ft. | -40°C to -85°C | 15 racks | 20" × 22" × 51.25" (50 × 55 × 130 cm) | 35" × 34.5" × 79.5" (88 × 87 × 201 cm) |
| ULF501UP (this model) | 18 cu.ft. | -40°C to -85°C | 20 racks | 23" × 26" × 51.25" (58 × 66 × 130 cm) | 40" × 36" × 79.5" (101 × 91 × 201 cm) |
| ULF601UP | 22 cu.ft. | -40°C to -85°C | 25 racks | 28.5" × 26" × 51.25" (72 × 66 × 130 cm) | 43" × 37" × 79.5" (109 × 93 × 201 cm) |
| ULF701UP | 25 cu.ft. | -40°C to -85°C | 30 racks | 34" × 25" × 51.25" (86 × 63 × 130 cm) | 50" × 37" × 79.5" (127 × 93 × 201 cm) |
| ULF801UP | 28 cu.ft. | -40°C to -80°C | 30 racks | 38" × 25" × 51.25" (96 × 63 × 130 cm) | 54" × 37" × 79.5" (137 × 93 × 201 cm) |
| ULF901UP | 30 cu.ft. | -40°C to -80°C | 35 racks | 42" × 25" × 51.25" (106 × 63 × 130 cm) | 60.5" × 37" × 79.5" (153 × 93 × 201 cm) |
Ordering Information
| Catalog number | GTIN / UPC |
|---|---|
| ULF-501UP | 797059930517 |
| Manufacturer | Yamato Scientific |
| Manufacturer part number | ULF-501UP |
| UNSPSC | 41103000 — Ultra Low Freezer |
| HTS code | 8418.40.0000 |
| Export classification (ECCN) | EAR99 |
Documents & Downloads
- Yamato ULF Platinum Series Ultra-Low Freezer brochure (PDF, 290 KB)
- Yamato Scientific America product page
More in This Series
- Yamato ULF501CP Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 14 cu.ft., Manual Defrost
- Yamato ULF701U Upright Style Ultra Low Freezers -40°C To -85°C, 25 cu.ft., Manual Defrost
- Yamato ULF401UP Platinum Upright Style Ultra Low Freezers -40°C To -85°C, 13 cu.ft., Manual Defrost
- Yamato ULF401CP Platinum Chest Style Ultra Low Freezers -40°C To -85°C, 12 cu.ft., Manual Defrost
- Yamato ULF601U Upright Style Ultra Low Freezers -40°C To -85°C, 22 cu.ft., Manual Defrost
- Yamato ULF601C Chest Style Ultra Low Freezers -40°C To -85°C, 17 cu.ft., Manual Defrost
View all Ultra-Low Temperature Freezers →
Frequently Asked Questions
What is the temperature range of the Yamato ULF501UP?
The ULF501UP operates from -40°C to -85°C. A cascade refrigeration system with two hermetic compressors and CFC-/HCFC-free R-508B and R-404A refrigerants drives the pull-down.
How much storage does the ULF501UP hold?
It provides 18 cubic feet (505 L) of interior capacity across four adjustable shelves and five compartments, with room for up to 20 racks. Interior dimensions are 23 × 26 × 51.25 inches; exterior dimensions are 40 × 36 × 79.5 inches.
What electrical supply does the ULF501UP require?
It is available for 115V, 208V, or 230V at 60 Hz single-phase, plus 220V at 50/60 Hz single-phase. Confirm your site voltage when ordering.
What materials is the cabinet made from?
The chamber is 14-gauge zinc-coated galvanized steel, and the exterior is 16-gauge steel finished in powder-coated cool gray.
What happens during a power failure?
An automatic timer system restarts the unit once power returns. A battery-backed alarm provides audible and visual warnings, and a relay supports remote alarm monitoring.
Is the ULF501UP manual or automatic defrost?
The ULF501UP uses manual defrost. Optional accessories include a CO₂ and LN₂ back-up system, additional racks, and cold safety gloves.
What is the UNSPSC code for the Yamato ULF501UP?
The Yamato ULF501UP is classified under UNSPSC 41103000 (ultra low freezer).
Is there a spec sheet or brochure for the Yamato ULF501UP?
Yes. The Yamato ULF Platinum Series Ultra-Low Freezer brochure (290 KB PDF) is linked under Documents & Downloads on this page.
How does the Yamato ULF501UP compare with the other ULF Series models?
Yamato builds this ULF Series line in 6 sizes: 13 cu.ft. (ULF401UP), 18 cu.ft. (ULF501UP), 22 cu.ft. (ULF601UP), 25 cu.ft. (ULF701UP), 28 cu.ft. (ULF801UP) and 30 cu.ft. (ULF901UP). The comparison table on this page lists capacity, temperature range, racks, interior (w × d × h) and exterior side by side.
Which alarms does the Yamato ULF501UP have?
Yamato lists these alarms for the ULF501UP: 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.
What are the interior dimensions of the Yamato ULF501UP?
The Yamato ULF501UP chamber measures 23" × 26" × 51.25" (58 × 66 × 130 cm) inside (W × D × H).
How many storage racks does the Yamato ULF501UP hold?
Yamato rates the ULF501UP at 20 racks in 505 L / 18 cu.ft. of storage.
What refrigeration system does the Yamato ULF501UP use?
The Yamato ULF501UP uses cascade type — two hermetic compressors, CFC-free R-508B and R-404A (CFC- & HCFC-free) refrigerant and manual defrost.
What certifications does the Yamato ULF501UP carry?
Yamato lists the ULF501UP as UL Listed.
What optional accessories are available for the Yamato ULF501UP?
Yamato offers these options for the ULF501UP: CO₂ and LN₂ back-up system; racks; cold safety gloves.
What are the electrical requirements for the Yamato ULF501UP?
Yamato specifies 115V / 208V / 230V, 60 Hz, 1-phase; 220V, 50/60 Hz, 1-phase for the ULF501UP.
What are the shipping dimensions and weight of the Yamato ULF501UP?
Yamato's shipping data lists the ULF501UP at 46 × 43 × 86 in and 900 lb packed.
