Refurbished Ultra-Low Freezers

Wide Selection of Refurbished Ultra-Low Freezers

American Instrument Exchange offers a diverse range of refurbished ultra-low freezers from top manufacturers like Thermo Scientific, VWR, and Revco. With savings of up to 60% compared to new models, we provide reliable freezers for your lab at competitive prices.

Comprehensive Testing for Quality Assurance

Lower costs don’t mean lower quality. Our technicians rigorously test ultra-low freezers with digital chart recorders to ensure temperature accuracy. We replace faulty parts, clean all units thoroughly, and ensure compressors work consistently. Additionally, we verify features like high-temperature alarms, remote monitoring, and touchscreen displays. We also provide test records upon request before shipment.

 Click here to view our current stock of ultra-low freezers.

The Purpose of Ultra-Low Freezers

Ultra-low freezers maintain temperatures between -40°C and -150°C to protect sensitive samples, such as enzymes, viruses, stem cells, and tissue samples. These samples are typically stored in tubes or microtubes, ensuring cell viability and sample integrity.

Energy Efficiency and Storage Features

Ultra-low freezers use dual compressor cascade refrigeration systems, which are energy-intensive despite polyurethane insulation. Most models include inner doors to minimize temperature loss during access. Full freezers consume less energy and maintain better temperature stability compared to partially filled units. Many manufacturers now use eco-friendly, non-CFC refrigerants.

Benefits of Upright Ultra-Low Freezers

Upright ultra-low freezers maximize storage capacity in labs with limited floor space and frequent sample access needs. These models often feature adjustable shelves and temperature ranges from -40°C to -86°C, making them ideal for high-use environments.

Advantages of Chest-Style Ultra-Low Freezers

Chest-style ultra-low freezers are better suited for long-term storage or labs with ample floor space. These units are more energy-efficient and maintain temperature longer during power outages. They may also have low-temperature ranges extending to -150°C, providing cryogenic storage capabilities without using LN2.

Fast Shipping and Reliable Service

Most of our ultra-low freezers are in stock and ready to ship from our 30,000-square-foot warehouse in Haverhill, Massachusetts. We serve various laboratories, including biotech, pharmaceutical, and medical research facilities. Since 1969, we have been a trusted source for reconditioned lab equipment.

Contact us today for pricing and information on selecting an ultra-low freezer for your lab!