Ultra-Low Temperature Freezers
Ultra-low temperature (ULT) freezers reach -40 degrees C and -86 degrees C -- temperatures used for long-term preservation of biological materials, extraction inputs, and post-harvest product that requires stable cold storage well below standard freezer range. Across International produces the ULT freezers available at Hydrobuilder, including the Glacier series (-86 degrees C upright) and DeepFreeze series (-40 degrees C) in capacities from 4 cubic feet through 27 cubic feet. These units are used in commercial production and research environments where standard -18 degrees C freezer temperature is insufficient for the preservation requirements of the stored material.
Across International ULT Freezers
The Across International Glacier 4 CF -86 degrees C Ultra-Low Upright Freezer is the entry-level ULT unit in the line -- a compact -86 degrees C unit appropriate for small commercial operations and laboratory environments where deep-freeze storage capacity is needed without the floor space of a larger unit. The DeepFreeze 27 CF -40 degrees C Upright Freezer provides substantially more storage volume at -40 degrees C, the temperature used for many extraction preparation protocols. Across International also produces storage accessories including internal drawers and vial racks that maximize usable space and organization within the ULT cabinet.
Applications and Purchasing
ULT freezers are high-ticket commercial equipment with significant electrical requirements and specialized maintenance needs. Due to the cost and complexity involved, these are typically purchased through our commercial accounts program or via request for quote. Call 888-815-9763 or visit our Request a Quote page to discuss pricing, specifications, and delivery for ULT freezer orders. Commercial accounts include volume pricing and a dedicated account representative. Browse Across International's broader line of lab and extraction equipment.
Ultra-Low Freezer FAQ
What is the difference between -40 degrees C and -86 degrees C ultra-low freezers?
-40 degrees C ultra-low freezers are used for applications that require temperatures below standard freezer range (-18 degrees C) but do not require the extreme cold of -86 degrees C units. Common -40 degrees C applications include extraction preparation protocols, long-term storage of biological materials that are stable at this temperature, and industrial cold storage requirements. -86 degrees C ultra-low freezers (also called ULT80 or deep freeze units) are used for preservation applications that require extreme cold -- biological samples sensitive to degradation at warmer temperatures and certain research applications. -86 degrees C units consume significantly more electricity, cost more upfront, and require more frequent maintenance than -40 degrees C units. Choose the temperature range based on your specific preservation protocol requirements.
What are the electrical requirements for ULT freezers?
Ultra-low temperature freezers have substantial electrical requirements compared to standard commercial freezers. -86 degrees C units typically draw 8-15 amps at 110V for smaller models and may require 240V for larger capacity units. -40 degrees C units draw somewhat less but still significantly more than standard freezers. Before purchasing, verify your facility's electrical panel capacity and available circuit amperage for the specific model you are considering. ULT freezers should be on dedicated circuits -- sharing a circuit with other high-draw equipment can cause temperature fluctuations and may trip breakers. Exact requirements vary by model; contact us at 888-815-9763 to review specifications for your specific model before ordering.
How do I get pricing on ULT freezers?
Ultra-low freezers are commercial equipment typically purchased through Hydrobuilder's commercial accounts program. Request a quote at hydrobuilder.com/pages/quote or call 888-815-9763 -- our commercial team will provide current pricing, verify availability, discuss delivery logistics, and set up a commercial account if you need volume pricing or project-level procurement support. Lead times and shipping requirements for large freezer units differ from standard product orders; confirming these details before purchase prevents logistical complications.



















