Blizzard HC NU-99728J -80°C Ultralow Freezer

Safeguard vital research with the Blizzard NU-99728J -86°C ULT freezer—a high-capacity solution for reliable, long-term cell preservation with advanced temperature control systems.

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Overview

The Blizzard NU-99728J -86°C Ultralow Temperature Freezer provides dependable storage for sensitive biological samples including stem cells, blood, tissue, and vaccines. With a spacious 28.1 cu. ft. (796 L) interior, this unit supports high-volume sample preservation for research-intensive environments.

Precision temperature control is achieved through a dual-compressor cascade system and vacuum-insulated panel construction, ensuring stable and uniform storage conditions. Smart monitoring via audible and visual alarms, combined with a battery backup, keeps your lab informed even during power disruptions. Optional CO₂/LN₂ backup offers added security for mission-critical applications.

Engineered for durability and ease of use, the NU-99728J combines quiet operation, ergonomic access, and robust build quality—a reliable choice for PIs and lab managers dedicated to long-term research success.

Maximize Lab Efficiency with Smart Control Freezer

Our Ultralow Freezer features an advanced electronic control system strategically placed at eye level, making monitoring crucial data at a glance effortlessly accessible. This intelligent interface not only displays the internal temperature, ambient temperature, and voltage in real time but also ensures the safety of your precious samples with an integrated audible and visual alarm system. With several indicator lights, users gain insight into the freezer's condition: operational status, alarm triggers, or maintenance alerts. The intuitive navigation arrows and set key empower users to customize access via passcode, adjust temperature settings, define alarm limits, and tailor freezer preferences to their specific needs, enhancing security and operational efficiency in your laboratory environment.

Secure & Efficient Storage with Advanced Insulation

The Ultralow Freezer NU-99728J revolutionizes dependable research storage with its cutting-edge insulation and refrigeration system. Featuring insulated inner doors with individual latches, it ensures temperature stability, which is vital for the integrity of sensitive samples. Vacuum Insulated Panels (VIP) combined with high-density, low-conductivity polyurethane foam enhance temperature uniformity and maximize storage capacity, making every inch count. Hydrocarbon (HC) refrigerants, an eco-friendly choice, offer efficient cooling without harming the ozone layer. The quadruple outer and single-gasket inner doors create a pressure-tight seal, drastically reducing icing and thermal intrusion. This freezer is designed to meet the rigorous research storage demands, providing peace of mind with every use.

Effortless Access with Smart Freezer Design

Blizzard Ultralow Freezers are engineered for seamless access without compromising sample security or temperature stability. The innovative Pressure Equalization Port, equipped with a heated, spring-assisted mechanism, ensures the freezer door can be easily opened right after sample insertion, preventing icing. The outer door features a locking claw latch that maintains a tight seal to minimize frost build-up and allows for effortless opening with minimal effort. The door includes a key lock and padlock option for enhanced security, ensuring your valuable research materials are safeguarded. Inside, individual latching inner doors maintain pressure-tight sales, making organizing and accessing samples straightforwardly without affecting the entire storage environment. This freezer combines practical usability with the stringent security measures essential for high-value research storage.

Seamless Data Management in Freezers

The NU-99728J Ultralow Temperature Freezer introduces seamless data management and connectivity for modern laboratories, featuring a USB Data Port for easy download of freezer data directly from the electronic control center. With a standard remote alarm and RS485 ports in the power switch panel, this freezer allows for the transmission of temperature and alarm data to independent software for comprehensive monitoring and recording. An optional Circular Chart Recorder offers an extra layer of data reliability with internal temperature monitoring and recording, ensuring your research data is accurately tracked and securely managed. This integration of advanced connectivity options ensures that Blizzard ULTs meet and exceed the data management needs of today's fast-paced scientific environments.

Specifications

Blizzard NU-99728J -86°C Ultralow Freezer
2-inch Box Capacity 500
Rack Capacity 20
Access Port Location Back Wall
Back Up Battery for Alarm Functions High/low temperature, power failure, door open, sensor failure, high ambient temperature, hot condenser and low battery alarms
Cabinet Thickness Inches (mm) 3.5 (90)
Casters All-direction caster with fixing stand
Door Thickness Inches (mm) 3.5 (90)
Exterior Door Single Door
Exterior Door Seal Quadruple Seal on the Outside Door
Exterior Material Color Coating Cold Plate Steel
Fan Brand EBM
Inner Doors 4
Insulation VIP+CFC Free Foaming Agent
Interior Door Seal Single Seal on all Interior Doors
Interior Material Color Coating Electric Zinc Steel Plate
Leg Levelers 2
Locking Mechanism Key
Shelf Capacity lbs (kg) 199 (90)
Shelf Material Stainless Steel
Shelves 3 Shelves, 4 Locations
Style Upright
Adjustable High/Low Temperature Alarms True
Alarms Temperature, Power Failure, Probe Failure, Condenser, Ambient Temperature, Door Ajar, Low Battery, etc.
Auto Voltage Safeguard Included
Data Output Features USB, RS-232/485
Power Switch On-Off with Circuit Breaker
Remote Alarm Terminals Remote Alarm Port, RS232 / RS485 (Optional)
Setpoint Security Yes
Est. Shipping Depth Inches (mm) 42 (1067)
Est. Shipping Height Inches (mm) 84 (2137)
Est. Shipping Width Inches (mm) 44 (1118)
Exterior Depth Inches (mm) 38.6 (980)
Exterior Depth with Door Open Inches (mm) 74.80 (1900)
Exterior Height Inches (mm) 78 (1980)
Exterior Width Inches (mm) 41 (1041)
Footprint Depth inches (mm) 38.6 (980)
Footprint Width inches (mm) 41 (1041)
Interior Depth Inches (mm) 28.2 (716)
Interior Height Inches (mm) 51.6 (1310)
Interior Volume Cubic Feet (Liters) 25.7 (728)
Interior Width Inches (mm) 30.2 (766)
Shelf Depth Inches (mm) 26.6 (677)
Shelf Width Inches (mm) 29.5 (750)
Electric Protection Type
Electrical Configuration 230V50Hz
Input Power (W) 1650
Power Consumption KWh/day 10.5
Power Cord Grounded Three Prong Power Plug, Rated 16A
Power Cord Length Foot (Meter) 8.2 ft (2.5m)
Rated Current (A) 9.0
Rated Frequency (Hz) 50
Rated Voltage (V) 230
Stable Current (A) 7.5
Sound Level 50 dB(A)
1 Minutes Door Open Recovery Time (25°C ambient running temp -75°C) in Minutes 45
Cool Down Time (25°C ambient to -80°C) in Minutes 310
Heat Rejected (BTU/Hour) 1404
Warm-Up Time (25°C ambient -80°C to -50°C) in Minutes 270
Compressor Capacity Watt 950
Compressor Type/Brand/Number Hermetic Reciprocating Type / SECOP / 2
Condenser Type Enhanced Micro-Channel & Forced-Air Cooled
Defrost Method Manual
Evaporator Type Cold Wall With Enhanced Heat Transfer Treatment
Refrigerant Charge/Flammable R290 in 1st Stage / R290 + R170 Mix in 2nd Stage / Flammable in JE Version; R290 in 1st Stage / R170 in 2nd Stage / Flammable in JG & JGA Versions
Refrigeration System Type Direct cooling
Ambient Temperature (°C) 10 to 32
Temperature Accuracy °C ±1
Temperature Control Microprocessor Controller
Temperature Range °C -40 to -86
Temperature Sensor Type RTD (Pt100)
Temperature Uniformity °C ±5
Est. Shipping Weight lbs (kg) Estimated 849 lbs (385 kgs)
Net Weight lbs (kg) 761 lbs (345 kg)
2-inch Box Capacity 500
Rack Capacity 20
Access Port Location Back Wall
Back Up Battery for Alarm Functions High/low temperature, power failure, door open, sensor failure, high ambient temperature, hot condenser and low battery alarms
Cabinet Thickness Inches (mm) 3.5 (90)
Casters All-direction caster with fixing stand
Door Thickness Inches (mm) 3.5 (90)
Exterior Door Single Door
Exterior Door Seal Quadruple Seal on the Outside Door
Exterior Material Color Coating Cold Plate Steel
Fan Brand EBM
Inner Doors 4
Insulation VIP+CFC Free Foaming Agent
Interior Door Seal Single Seal on all Interior Doors
Interior Material Color Coating Electric Zinc Steel Plate
Leg Levelers 2
Locking Mechanism Key
Shelf Capacity lbs (kg) 199 (90)
Shelf Material Stainless Steel
Shelves 3 Shelves, 4 Locations
Style Upright
Adjustable High/Low Temperature Alarms True
Alarms Temperature, Power Failure, Probe Failure, Condenser, Ambient Temperature, Door Ajar, Low Battery, etc.
Auto Voltage Safeguard Included
Data Output Features USB, RS-232/485
Power Switch On-Off with Circuit Breaker
Remote Alarm Terminals Remote Alarm Port, RS232 / RS485 (Optional)
Setpoint Security Yes
Est. Shipping Depth Inches (mm) 42 (1067)
Est. Shipping Height Inches (mm) 84 (2137)
Est. Shipping Width Inches (mm) 44 (1118)
Exterior Depth Inches (mm) 38.6 (980)
Exterior Depth with Door Open Inches (mm) 74.80 (1900)
Exterior Height Inches (mm) 78 (1980)
Exterior Width Inches (mm) 41 (1041)
Footprint Depth inches (mm) 38.6 (980)
Footprint Width inches (mm) 41 (1041)
Interior Depth Inches (mm) 28.2 (716)
Interior Height Inches (mm) 51.6 (1310)
Interior Volume Cubic Feet (Liters) 25.7 (728)
Interior Width Inches (mm) 30.2 (766)
Shelf Depth Inches (mm) 26.6 (677)
Shelf Width Inches (mm) 29.5 (750)
Electric Protection Type
Electrical Configuration 220V60Hz
Input Power (W) 1650
Power Consumption KWh/day 10.5
Power Cord Grounded Three Prong Power Plug, Rated 16A
Power Cord Length Foot (Meter) 8.2 ft (2.5m)
Rated Current (A) 9.0
Rated Frequency (Hz) 60
Rated Voltage (V) 220
Stable Current (A) 7.5
Sound Level 50 dB(A)
1 Minutes Door Open Recovery Time (25°C ambient running temp -75°C) in Minutes 45
Cool Down Time (25°C ambient to -80°C) in Minutes 310
Heat Rejected (BTU/Hour) 1574
Warm-Up Time (25°C ambient -80°C to -50°C) in Minutes 270
Compressor Capacity Watt 950
Compressor Type/Brand/Number Hermetic Reciprocating Type / SECOP / 2
Condenser Type Enhanced Micro-Channel & Forced-Air Cooled
Defrost Method Manual
Evaporator Type Cold Wall With Enhanced Heat Transfer Treatment
Refrigerant Charge/Flammable R290 in 1st Stage / R290 + R170 Mix in 2nd Stage / Flammable in JE Version; R290 in 1st Stage / R170 in 2nd Stage / Flammable in JG & JGA Versions
Refrigeration System Type Direct cooling
Ambient Temperature (°C) 10 to 32
Temperature Accuracy °C ±1
Temperature Control Microprocessor Controller
Temperature Range °C -40 to -86
Temperature Sensor Type RTD (Pt100)
Temperature Uniformity °C ±5
Est. Shipping Weight lbs (kg) Estimated 849 lbs (385 kgs)
Net Weight lbs (kg) 761 lbs (345 kg)
2-inch Box Capacity 500
Rack Capacity 20
Access Port Location Back Wall
Back Up Battery for Alarm Functions High/low temperature, power failure, door open, sensor failure, high ambient temperature, hot condenser and low battery alarms
Cabinet Thickness Inches (mm) 3.5 (90)
Casters All-direction caster with fixing stand
Door Thickness Inches (mm) 3.5 (90)
Exterior Door Single Door
Exterior Door Seal Quadruple Seal on the Outside Door
Exterior Material Color Coating Cold Plate Steel
Fan Brand EBM
Inner Doors 4
Insulation VIP+CFC Free Foaming Agent
Interior Door Seal Single Seal on all Interior Doors
Interior Material Color Coating Electric Zinc Steel Plate
Leg Levelers 2
Locking Mechanism Key
Shelf Capacity lbs (kg) 199 (90)
Shelf Material Stainless Steel
Shelves 3 Shelves, 4 Locations
Style Upright
Adjustable High/Low Temperature Alarms True
Alarms Temperature, Power Failure, Probe Failure, Condenser, Ambient Temperature, Door Ajar, Low Battery, etc.
Auto Voltage Safeguard Included
Data Output Features USB, RS-232/485
Power Switch On-Off with Circuit Breaker
Remote Alarm Terminals Remote Alarm Port, RS232 / RS485 (Optional)
Setpoint Security Yes
Est. Shipping Depth Inches (mm) 42 (1067)
Est. Shipping Height Inches (mm) 84 (2137)
Est. Shipping Width Inches (mm) 44 (1118)
Exterior Depth Inches (mm) 38.6 (980)
Exterior Depth with Door Open Inches (mm) 74.80 (1900)
Exterior Height Inches (mm) 78 (1980)
Exterior Width Inches (mm) 41 (1041)
Footprint Depth inches (mm) 38.6 (980)
Footprint Width inches (mm) 41 (1041)
Interior Depth Inches (mm) 28.2 (716)
Interior Height Inches (mm) 51.6 (1310)
Interior Volume Cubic Feet (Liters) 25.7 (728)
Interior Width Inches (mm) 30.2 (766)
Shelf Depth Inches (mm) 26.6 (677)
Shelf Width Inches (mm) 29.5 (750)
Electric Protection Type
Electrical Configuration 115V60Hz
Input Power (W) 935
Power Consumption KWh/day 10.5
Power Cord Grounded Three Prong Power Plug, Rated 20A
Power Cord Length Foot (Meter) 8.2 ft (2.5m)
Rated Current (A) 18.0
Rated Frequency (Hz) 60
Rated Voltage (V) 115
Stable Current (A) 8.1
Sound Level 50 dB(A)
1 Minutes Door Open Recovery Time (25°C ambient running temp -75°C) in Minutes 45
Cool Down Time (25°C ambient to -80°C) in Minutes 310
Heat Rejected (BTU/Hour) 1200
Warm-Up Time (25°C ambient -80°C to -50°C) in Minutes 270
Compressor Capacity Watt 950
Compressor Type/Brand/Number Hermetic Reciprocating Type / SECOP / 2
Condenser Type Enhanced Micro-Channel & Forced-Air Cooled
Defrost Method Manual
Evaporator Type Cold Wall With Enhanced Heat Transfer Treatment
Refrigerant Charge/Flammable R290 in 1st Stage / R290 + R170 Mix in 2nd Stage / Flammable in JE Version; R290 in 1st Stage / R170 in 2nd Stage / Flammable in JG & JGA Versions
Refrigeration System Type Direct cooling
Ambient Temperature (°C) 10 to 32
Temperature Accuracy °C ±1
Temperature Control Microprocessor Controller
Temperature Range °C -40 to -86
Temperature Sensor Type RTD (Pt100)
Temperature Uniformity °C ±5
Est. Shipping Weight lbs (kg) Estimated 849 lbs (385 kgs)
Net Weight lbs (kg) 761 lbs (345 kg)

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