AxiTech — The Core of Precision
-80°C Ultralow Freezer — main photograph
NuAireAvailability: Supplied to order

-80°C Ultralow Freezer

Reference NU-99828J

Experience powerful -86°C storage with the Blizzard NU-99828J ULT freezer—featuring HC refrigerants, VIP insulation, and 28.7 cu. ft. capacity for high-volume, long-term sample protection.

Request a service for this equipment

Nothing is charged online. Every request is reviewed by an AxiTech engineer before you receive a quotation.

At a glance

Part number
NU-99828J
Reference
NU-99828J
Category
Laboratory Refrigeration & Freezers
Equipment family
BLIZZARD HC

Overview

The Blizzard NU-99828J -86°C Ultralow Temperature Freezer is NuAire's highest-capacity ULT solution, offering 28.7 cu. ft. (813 L) of secure storage for critical research samples. Engineered with hydrocarbon (HC) refrigerants and composite vacuum insulated panels (VIP), it delivers superior thermal efficiency and reduced environmental impact. Capable of storing up to twenty-four 5x5 ULT racks or 600 standard 2" boxes, the NU-99828J is ideal for labs requiring high-volume, long-term preservation of cell lines, tissues, and biologics. The freezer features a pressure equalization port for quick re-entry, and an advanced electronic control panel with USB data logging ensures temperature integrity and audit compliance. Built for reliability and ease of use, the NU-99828J blends cutting-edge insulation, ergonomic design, and energy-conscious performance for dependable sample security in demanding research environments.

Unlock the potential of your research with our state-of-the-art freezer, offering a vast 28.7 ft3 (813 L) of storage space. It's tailored for extensive collections, supporting up to 24 racks, 600 boxes, or 60,000 2 mL vials. Precision isn't just a promise; with temperature uniformity of ±4°C and accuracy of ±1°C, your critical samples are maintained in optimal conditions. Ideal for a wide range of applications, from cell preservation to vaccine storage, this freezer is your ally in pushing the boundaries of scientific exploration.

Elevate your research with our cutting-edge Dual Stage Refrigeration System. This system features two compressors that work in tandem to ensure your valuable research samples are stored under consistently optimal conditions. The rapid recovery of storage temperature post-door openings minimizes thermal shock to sensitive materials, preserving their integrity. Complemented by eco-friendly Hydrocarbon (HC) Refrigerants, our freezer provides efficient and reliable cold storage and safeguards the environment using non-ozone-depleting substances. Trust in our technology to secure your scientific advancements.

Our freezer is designed with cutting-edge Vacuum Insulated Panels (VIP) and high-density polyurethane foam, ensuring unparalleled temperature stability and maximizing storage capacity. The innovation extends to insulated inner doors, featuring individual latches for compartmentalized storage, further enhancing temperature uniformity. The outer door, equipped with a locking claw latch, minimizes frost build-up and allows easy access without compromising security. Quadruple gasket sealing on the exterior and additional single gaskets on inner doors work synergistically to provide a pressure-tight seal, significantly reducing thermal intrusion and icing. Experience peace of mind with our freezer, where every detail is crafted for the optimal preservation of your valuable research samples.

Maximize your research's safety and continuity with our freezer's cutting-edge alarm systems and backup options. Equipped with audible and visible alerts, our freezers immediately notify you of any internal temperature changes or power disruptions, keeping your valuable samples secure. The optional CO2/LN2 backup cooling systems offer additional protection, maintaining optimal temperatures even during power outages. For temperature monitoring, a circular chart recorder is available. For more precise monitoring, a USB data port enables easy tracking and data transfer, always informing you about your freezer's status. Plus, with a remote alarm and RS485 ports, you can monitor your freezer's conditions from anywhere, providing peace of mind and freeing you to focus on critical research.

Maintenance contract — AxiTech provides planned preventive maintenance for -80°C Ultralow Freezer from NuAire: scheduled visits, safety checks, periodic calibration and a documented service report, backed by a contractual response time.

Troubleshooting, repair and spare parts — our biosafety cabinets & laminar flow engineers diagnose and repair -80°C Ultralow Freezer on site or in the workshop, fit genuine spare parts and recommission the equipment after performance verification.

Features

  • Expand Your Research with Unmatched Storage Capacity
  • Revolutionize Sample Storage with Advanced Cooling
  • Optimize Sample Safety with Superior Insulation Tech
  • Ensure Uninterrupted Research with Advanced Safety Features

Technical specifications

Specifications
Style
Upright
Alarms
Temperature, Power Failure, Probe Failure, Condenser, Ambient Temperature, Door Ajar, Low Battery, etc.
Casters
All-direction caster with fixing stand
Shelves
3 Shelves, 4 Locations
Fan Brand
EBM
Insulation
VIP+CFC Free Foaming Agent
Power Cord
Grounded Three Prong Power Plug, Rated 16A
Inner Doors
4
Sound Level
50 dB(A)
Leg Levelers
2
Power Switch
On-Off with Circuit Breaker
Exterior Door
Single Door
Rack Capacity
24
Condenser Type
Enhanced Micro-Channel & Forced-Air Cooled
Defrost Method
Manual
Shelf Material
Stainless Steel
Evaporator Type
Cold Wall With Enhanced Heat Transfer Treatment
Input Power (W)
1650
Exterior Material
Color Coating Cold Plate Steel
Interior Material
Color Coating Electric Zinc Steel Plate
Locking Mechanism
Key
Rated Current (A)
10.0
Rated Voltage (V)
220
Setpoint Security
Yes
Exterior Door Seal
Quadruple Seal on the Outside Door
Interior Door Seal
Single Seal on all Interior Doors
Stable Current (A)
7.5
2 inch Box Capacity
600
Net Weight lbs (kg)
836 lbs (380 kg)
Temperature Control
Microprocessor Controller
Access Port Location
Back Wall
Data Output Features
USB, RS-232/485
Rated Frequency (Hz)
60
Temperature Range °C
-40 to -86
Auto Voltage Safeguard
Included
Remote Alarm Terminals
Remote Alarm Port, RS232 / RS485 (Optional)
Shelf Capacity lbs (kg)
238 (108)
Shelf Depth Inches (mm)
26.6 (677)
Shelf Width Inches (mm)
33.7 (856)
Temperature Sensor Type
RTD (Pt100)
Compressor Capacity Watt
950
Electric Protection Type
Class I
Electrical Configuration
220V 60Hz
Heat Rejected (BTU/Hour)
1437
Temperature Accuracy °C
±1
Ambient Temperature (°C)
10 to 32, Ideal Ambient Temperature 18 to 25
Power Consumption KWh/day
12
Refrigeration System Type
Direct cooling
Door Thickness Inches (mm)
3.5 (90)
Exterior Depth Inches (mm)
38.6 (980)
Exterior Width Inches (mm)
45.1 (1145)
Interior Depth Inches (mm)
28.2 (716)
Interior Width Inches (mm)
34.3 (870)
Temperature Uniformity °C
±5
Exterior Height Inches (mm)
78 (1980)
Footprint Depth inches (mm)
38.6 (980)
Footprint Width inches (mm)
45.1 (1145)
Interior Height Inches (mm)
51.6 (1310)
Compressor Type/Brand/Number
Hermetic Reciprocating Type / SECOP / 2
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 Version
Cabinet Thickness Inches (mm)
3.5 (90)
Est. Shipping Weight lbs (kg)
Estimated 903 lbs (410 kgs)
Power Cord Length Foot (Meter)
8.2 ft (2.5m)
Est. Shipping Depth Inches (mm)
41 (1041)
Est. Shipping Width Inches (mm)
47 (1194)
Est. Shipping Height Inches (mm)
84 (2137)
Back Up Battery for Alarm Functions
High/low temperature, power failure, door open, sensor failure, high ambient temperature, hot condenser and low battery alarms
Interior Volume Cubic Feet (Liters)
29.2 (828)
Adjustable High/Low Temperature Alarms
True
Exterior Depth with Door Open Inches (mm)
79.10 (2009)
Cool Down Time (25°C ambient to 80°C) in Minutes
320
Warm Up Time (25°C ambient 80°C to 50°C) in Minutes
300
1 Minutes Door Open Recovery Time (25°C ambient running temp 75°C) in Minutes
35
Service coverage

AxiTech maintains, repairs and supplies this equipment for hospitals, clinics, laboratories and imaging centres.

Maintenance contracts for -80°C Ultralow Freezer

AxiTech provides preventive maintenance contracts for -80°C Ultralow Freezer. Each contract fixes a schedule of planned visits in which our biomedical engineers inspect the equipment, replace wear parts before they fail, and verify that it still performs inside the manufacturer’s tolerances.

Every visit includes calibration and performance verification, and closes with a documented maintenance report you can present during an accreditation audit. Spare-parts availability and a guaranteed response time are written into the contract, so a breakdown never leaves a department waiting for an answer.

Laboratory analysers are usually maintained every three to six months, with calibration and quality-control verification at each visit so that results stay traceable.

  • Planned preventive maintenance visits at a fixed interval
  • Calibration and performance verification against the manufacturer’s specifications
  • A documented maintenance report after every intervention
  • Guaranteed availability of spare parts and consumables
  • A contractual response time when the equipment fails

Discover our maintenance contracts

Planned preventive maintenance and calibration under contract

Troubleshooting and repair for -80°C Ultralow Freezer

When -80°C Ultralow Freezer fails, our engineers start with a structured diagnostic: error codes, electrical and mechanical checks, and a functional test against the equipment’s own specification. That tells us whether the fault is a consumable, a worn part or a board-level failure before any part is ordered.

Straightforward faults are repaired on site so the department loses as little time as possible. Anything that needs a workbench, a full strip-down or a specialised spare part goes to our workshop and comes back only after a complete post-repair test and, where the equipment requires it, recalibration.

Faults we see most often on this type of equipment

On analysers most faults come from the fluidics — blocked probes, worn pumps and tubing, leaking valves — followed by optical drift and reagent-handling errors.

Discover our troubleshooting and repair service

Diagnostics, corrective repair and spare parts in the workshop
Troubleshooting

How to troubleshoot -80°C Ultralow Freezer

Work through these checks before you escalate. They are the same first-line sequence our biomedical engineers run on arrival, and they either clear the fault or narrow it down enough that the intervention starts with the right spare part in the van.

  1. Capture the fault before you touch anything: write down the exact error code or message, the serial number from the rating plate, what the operator was doing and whether the fault clears on a restart.

  2. Review the quality-control and calibration history. A result that has drifted across several runs points at calibration or reagents; a sudden shift almost always points at the fluidics.

  3. Inspect the fluid path — probe, tubing, pump, valves and waste line — for blockage, crystallisation or leaks, and confirm reagent and wash levels together with their expiry dates.

  4. Confirm the ambient conditions the method depends on: bench temperature, ventilation, a level and vibration-free surface, and a stable mains supply.

  5. If the fault is still there, escalate with the evidence. Send AxiTech the model, serial number, error code and the checks you have already run, and an engineer will come back with a diagnosis, a repair quote and a spare-parts lead time for -80°C Ultralow Freezer.

What to send us when you report the fault

  • Manufacturer, model and serial number, from the rating plate
  • The exact error code or message, and the screen it appears on
  • When the fault started, how often it occurs and what triggers it
  • A photograph of the display or of the fault, and the last maintenance report

If the fault survives all five steps, stop using -80°C Ultralow Freezer and open a repair request. Continuing to run equipment through a fault it cannot clear turns a component failure into a board-level one, and on devices used for diagnosis or therapy it puts the result — and the patient — in doubt.

Discover our troubleshooting and repair service

Buying and installing -80°C Ultralow Freezer

AxiTech supplies -80°C Ultralow Freezer together with the accessories and consumables it needs to enter service. We handle importation, delivery and installation, then commission the equipment on site so that it is verified against its specification before the first patient or the first sample.

Installation is followed by training for the users and for your biomedical team, warranty registration, and — if you want it — a maintenance contract that takes over the day the warranty ends, so the equipment never spends a period without planned service.

Discover our equipment sales service

Delivery, installation, commissioning and user training
Questions we are asked

Frequently asked questions about NuAire -80°C Ultralow Freezer

Yes. AxiTech services -80°C Ultralow Freezer, either under a maintenance contract or as a one-off intervention. Our biomedical engineers cover preventive maintenance, calibration, corrective repair and spare-parts supply for this equipment.

Related equipment

Other NuAire equipment we supply, install and maintain.