So-Low | Explosion-Proof Ultra-Low Temperature Laboratory Freezers (-40°C) | UL Listed Hazardous Location Storage, Upright Models
Alto Med Supply proudly offers the So-Low Explosion-Proof Ultra-Low Temperature Upright Freezers (-40°C), a reliable solution for laboratories and industrial environments that require safe storage of volatile or sensitive materials.
Engineered specifically for hazardous locations, these high-performance freezers are UL Listed for Class I, Groups C and D, Division 1 and 2 areas, providing both internal and external protection against ignition risks.
With spacious upright configurations available in a range of capacities, these units are designed to meet the demands of research facilities, chemical plants, and medical laboratories.
Each freezer delivers consistent and precise temperature control from 0°C down to -40°C through a single-stage hermetic refrigeration system that uses environmentally friendly, CFC-free refrigerants.
Built for durability, the units feature a heavy-duty powder-coated steel exterior and a galvanized or stainless steel interior, making them ideal for rigorous, high-use environments.
Multiple inner doors help minimize temperature loss during access, while a digital explosion-proof controller ensures accurate monitoring and dependable performance.
For added security and convenience, these upright laboratory freezers include lockable doors and heavy-duty casters for easy positioning and mobility.
Designed for safety, compliance, and long-term reliability, the So-Low -40°C upright freezers are an excellent choice for facilities that require secure and stable ultra-low temperature storage in hazardous conditions.
Key Features
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Explosion-Proof Design: Ultra-low temperature freezers are engineered for hazardous environments, providing protection against ignition in volatile storage conditions.
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UL Listed for Hazardous Locations: Certified for Class I, Groups C and D, Division 1 and 2, ensuring compliance with strict safety standards for laboratory and industrial use.
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Ultra-Low Temperature Range (-40°C): Maintains stable temperatures from 0°C down to -40°C for reliable storage of sensitive and temperature-critical materials.
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Upright Configurations with Flexible Capacity: Available in multiple upright sizes to accommodate different storage needs, from compact to high-capacity laboratory applications.
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Durable Industrial Construction: Built with a heavy-duty powder-coated steel exterior and galvanized or stainless steel interior for long-lasting performance in demanding environments.
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Energy-Efficient CFC-Free Refrigeration: Uses a single-stage hermetic refrigeration system with environmentally friendly refrigerants for consistent and efficient cooling.
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Multiple Inner Doors for Temperature Stability: Upright models feature interior doors that reduce cold air loss and help maintain consistent internal temperatures during frequent access.
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Digital Explosion-Proof Temperature Controller: Provides precise temperature monitoring and control with a safety-focused, explosion-proof interface.
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Lockable Doors for Security: Equipped with lockable access to help protect valuable or sensitive stored materials.
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Heavy-Duty Casters for Mobility: Designed with strong casters to allow easy movement and repositioning within laboratories or industrial spaces.
Specifications
| Model |
U40-18X |
U40-22X |
U40-25X |
| Temp Range |
0°C to -40°C |
0°C to -40°C |
0°C to -40°C |
| Capacity |
18 Cu. Ft. (505 Liters) |
22 Cu. Ft. (626 Liters) |
25 Cu. Ft. (710 Liters) |
| 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 |
Single Stage System, 1 Hermetic Compressor |
Single Stage System, Hermetic Compressor |
Single Stage System, Gravity Flow |
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 |
| Exterior |
Powder Coated Steel |
Powder Coated Steel |
Powder Coated, Zinc Coated Galvanized Steel |
| Interior |
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 |
5, 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 (408 kg) |
975 lbs (442 kg) |
1125 lbs (510 kg) |
| Electrical |
115V, 60Hz, 1 Phase, 20A / 7.3A |
115V, 60Hz, 1 Phase, 200A |
115V, 60Hz, 1 Phase, 20A, NEMA 5-20 208V / 230V, 1 Phase, 7.3A, NEMA 5-20 |
Power Configuration |
Hardwired |
Hardwired |
Hardwired |
| Certification |
UL Listed, SA10711 |
UL Rated, NEMA 5-20, Class I & II, Groups C & D |
UL Rated, Class I, Division I & II, Groups C & D |
| Display Type |
Explosion Proof, Digital |
Explosion Proof, Digital |
Explosion Proof, Digital |
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.