So-Low | Explosion-Proof Ultra-Low Upright Freezers (-85°C) | Laboratory and Industrial Hazardous Material Storage
The So-Low Explosion-Proof Ultra Low Upright Freezers (-85°C) available at Alto Med Supply are engineered for safe, reliable ultra-low temperature storage in laboratory and industrial environments where flammable or volatile materials are handled.
Designed to maintain consistent temperatures ranging from -40°C to -85°C (-40°F to -120°F), these upright freezers utilize an advanced cascade refrigeration system with CFC-free and HCFC-free refrigerants to ensure efficient and environmentally conscious performance.
Safety is a top priority, with explosion-proof digital controls and specially designed compressor housings that help prevent ignition risks in hazardous locations.
Built for durability and long-term use, each unit features a heavy-duty 16-gauge powder-coated steel exterior paired with a 14-gauge zinc-coated galvanized steel interior for enhanced structural strength and corrosion resistance.
These explosion-proof ultra-low upright freezers are optimized for thermal efficiency and organization, incorporating five stainless steel inner doors that reduce cold air loss during access and four adjustable shelves to accommodate a variety of sample sizes.
With capacities ranging from 13 to 30 cubic feet, these explosion-proof ultra-low freezers provide flexible storage solutions suitable for both compact research laboratories and large-scale industrial operations.
Key Features
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Ultra-Low Temperature Range (-40°C to -85°C): Maintains consistent ultra-low temperatures ideal for storing sensitive biological, chemical, and flammable materials.
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Cascade Refrigeration System: Delivers reliable and efficient cooling performance using CFC-free and HCFC-free refrigerants for environmentally conscious operation.
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Explosion-Proof Safety Design: Features explosion-proof digital controls and specialized compressor housings to reduce ignition risks in hazardous environments.
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Heavy-Duty Steel Construction: Built with a 16-gauge powder-coated steel exterior and a 14-gauge galvanized steel interior for durability and corrosion resistance.
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Thermal Efficiency with Inner Doors: Includes five stainless steel inner doors that minimize cold air loss and help maintain stable internal temperatures.
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Adjustable Storage Configuration: Equipped with four adjustable shelves to accommodate a variety of sample sizes and storage needs.
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Flexible Capacity Options (13–30 cu. ft.): Available in multiple sizes to suit compact laboratory spaces as well as larger industrial applications.
Specifications
| Model Details |
U85-18X |
U85-22X |
U85-25X |
| Capacity |
18 Cu. Ft. (505 Liters) |
22 Cu. Ft. (626 Liters) |
25 Cu. Ft. (710 Liters) |
| Temp Range |
-40°C to -85°C |
-40°C to -85°C |
-40°C to -85°C |
| Ext. Dimensions |
42" x 36" x 79.5" |
47.25" x 37" x 79.5" |
54.75" x 37" x 79.5" |
| Int. Dimensions |
23" x 26" x 51.25" |
28.5" x 26" x 51.25" |
34” x 25” x 51.25” |
Refrigeration System |
Cascade-Style System |
Cascade-Style System |
Cascade-Style System |
| Compressors |
2, Hermetic |
2, Hermetic |
2, Hermetic |
Compressor Container |
Explosion Proof |
Explosion Proof |
Explosion Proof |
| Air Circulation |
Gravity Flow |
Gravity Flow |
Gravity Flow |
| Defrost Method |
Manual |
Manual |
Manual |
| Refrigerant |
HCFC & CFC Free |
HCFC & CFC Free |
HCFC & CFC Free |
| Ext. Material |
Powder Coated Steel |
Powder Coated Steel |
Powder Coated Steel |
| Int. Material |
Zinc Coated Galvanized Steel |
Zinc Coated Galvanized Steel |
Zinc Coated Galvanized Steel |
| Insulation |
Polyurethane (Ecomate) Foam |
Polyurethane (Ecomate) Foam |
Polyurethane (Ecomate) Foam |
| Inner Doors |
5, Stainless Steel |
5, Stainless Steel |
Stainless Steel |
| Lockable Door |
Lockable with Padlock |
Lockable with Padlock |
Lockable with Padlock |
| Casters |
4, Swivel with Locks |
4, Swivel with Locks |
4, Swivel with Locks |
| Storage |
4 Adjustable Shelves, with 1 Base Shelf |
4 Adjustable Shelves, with 1 Base Shelf |
4 Adjustable Shelves, with 1 Base Shelf |
| Shipping Weight |
900 lbs |
975 lbs |
1125 lbs |
| Electrical |
115 Volts, 60 Hertz, 1 Phase, 20A |
115 Volts, 60 Hertz, 1 Phase, 20A |
115 Volts, 60 Hertz, 1 Phase, 20A |
| Amps / Plug |
15A | NEMA 5-20 |
15A | NEMA 5-20 |
20A | NEMA 5-20 |
| Optional Voltages |
208 Volts, 230 Volts |
208 Volts, 230 Volts |
208 Volts, 230 Volts |
Power Configuration |
Hardwired |
Hardwired |
Hardwired |
| Certification(s) |
UL Rated |
UL Rated |
UL Rated |
Certification File Number |
SA10171 |
SA10711 |
SA10711 |
Certification Classification |
Class I, Division I & II, Groups C & D |
Class I, Division I & II, Groups C & D |
Class I, Division I & II, Groups C & D |
| Controller |
Explosion Proof, Digital Display |
Explosion Proof, Digital Display |
Explosion Proof, Digital Display |
Shipping
- Free curbside delivery (Contiguous United States Only)
- Delivery ETA 5–10 business days
- We also offer white glove engineer delivery with commissioning if required. Please contact us for a quote.
- If you require faster shipping or shipping anywhere other than the contiguous United States, please contact us for a shipping quote.
Warranty
This product comes with a 1 year manufacturer's parts and labor warranty on the unit and a 1 year warranty on the compressor.
Important Notes
The warranty applies only to the original purchaser of a new product.
It does not cover:
- Normal wear and tear
- Damage due to misuse, alteration, tampering, negligence, accidents, lack of maintenance, unauthorized repair, or any other cause beyond the reasonable control of the manufacturer.
If you have any faults with your items, contact us and we'll help to resolve any issues.
Conditions: Warranty is void if the product is altered, misused, or repaired by unauthorized personnel. Damage from improper maintenance or unsuitable environmental conditions is also excluded.
Important: Product Inspection Upon Delivery
Please inspect all items carefully for any damage that may have occurred during shipping immediately after unpacking and report within 24 hours of receiving the product.
Returns
We at Alto Med Supply are committed to ensuring you are delighted with every purchase. However, if you need to make a return, please reach out to us at support@altomedsupply.com, and we'll guide you through the return process.
Here are a few important points to note:
- You have the right to return your order within 14 calendar days of receiving the goods. Beyond this period, returns cannot be accepted.
- Products must be returned unused and in their original packaging.
- Return shipping charges and a 25% restocking fee apply.
- Bespoke items cannot be returned unless damaged or faulty.
For more information, please refer to our Terms and Conditions.
Please view our full returns and refund policy here.