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

-80°C Ultralow Freezer

Reference NU-99578J

Engineered for secure long-term storage, the Blizzard NU-99578J delivers stable -86°C performance, uniform temperatures, and energy-efficient HC cooling to protect valuable research and clinical samples.

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At a glance

Part number
NU-99578J
Reference
NU-99578J
Category
Laboratory Refrigeration & Freezers
Equipment family
Blizzard HC

Overview

The Blizzard NU-99578J -86°C Ultralow Temperature Freezer provides 20.6 cu. ft. (582 L) of validated cold storage engineered for the long-term preservation of cell lines, tissues, vaccines, and high-value research samples. Built for life science, biomedical, and clinical environments, it delivers exceptionally tight temperature uniformity and stable -86°C performance to help ensure the viability of irreplaceable materials. A durable multi-gasket outer door and insulated inner doors minimize frost intrusion and maintain thermal integrity during routine access. The Electronic Control Center supports continuous temperature monitoring with clear digital readouts, event logs, and audible/visual alarms that alert staff to deviations. During a power interruption, an integrated battery backup preserves monitoring and alarm functions, while optional CO₂ or LN₂ emergency cooling provides added protection for mission-critical samples. Using energy-efficient hydrocarbon (HC) refrigerants, the NU-99578J achieves rapid recovery and reduced energy consumption without sacrificing performance—supporting sustainability goals and lowering operating costs. Its intuitive interface, ergonomic door desig

Precision is crucial in the realm of sample preservation. This freezer maintains an ultra-low temperature of -86°C and excels in temperature uniformity across the storage area. With a performance that ensures minimal temperature variation, it is ideal for maintaining the integrity of long-term biological samples. This consistent temperature uniformity is essential in preventing significant impacts on sample quality due to minor fluctuations.

This ultralow freezer incorporates state-of-the-art cooling systems utilizing environmentally friendly hydrocarbon (HC) refrigerants. These HC refrigerants enhance performance and significantly improves energy efficiency. This contributes to both energy savings and a reduced environmental footprint, offering laboratories a cost-effective and eco-friendly solution.

Designed for durability and efficiency, the freezer's rugged construction is complemented by a multi-gasket system and insulated doors, specifically engineered to minimize frost buildup. This design ensures reliable long-term performance in demanding lab environments while maintaining consistent operation and protecting sample integrity.

Ease of operation is vital, and this freezer is equipped with an intuitive interface for simple temperature adjustments and monitoring. The straightforward controls and clear display support complex storage needs effortlessly.

Equipped with advanced safety mechanisms, this freezer includes an Electronic Control Center that provides internal temperature monitoring and alarm systems with visible and audible notifications. In addition, a battery backup system powers the control center and alarms during any interruptions in the primary power source. For added security, an optional Backup CO2/LN2 Cooling system can be hooked up to maintain internal storage temperatures during power outages, ensuring the utmost protection for your valuable samples.

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

  • Exceptional Temperature Stability and Uniformity
  • Advanced Cooling Technology
  • Robust Design with Enhanced Insulation Features
  • User-Friendly Interface
  • Enhanced 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 Adjustable, 4 Locations
Fan Brand
EBM
Insulation
VIP+CFC Free Foaming Agent
Power Cord
Grounded Three Prong Power Plug, Rated 20A
Inner Doors
4
Sound Level
50 dB(A)
Leg Levelers
2
Power Switch
On-Off with Circuit Breaker
Exterior Door
Single Door
Rack Capacity
16
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)
935
Exterior Material
Color Coating Cold Plate Steel
Interior Material
Color Coating Electric Zinc Steel Plate
Locking Mechanism
Key
Rated Current (A)
18.0
Rated Voltage (V)
115
Setpoint Security
Yes
Exterior Door Seal
Quadruple Seal on the Outside Door
Interior Door Seal
Single Seal on all Interior Doors
Stable Current (A)
8.1
2 inch Box Capacity
400
Net Weight lbs (kg)
661 lbs (300 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)
177 (80)
Shelf Depth Inches (mm)
26.6 (677)
Shelf Width Inches (mm)
23.75 (604)
Temperature Sensor Type
RTD (Pt100)
Compressor Capacity Watt
950
Electrical Configuration
115V60Hz
Heat Rejected (BTU/Hour)
1133
Temperature Accuracy °C
±1
Ambient Temperature (°C)
10 to 32
Power Consumption KWh/day
8.5
Refrigeration System Type
Direct Cooling
Door Thickness Inches (mm)
3.5 (90)
Exterior Depth Inches (mm)
38.6 (980)
Exterior Width Inches (mm)
35.4 (895)
Interior Depth Inches (mm)
28.2 (716)
Interior Width Inches (mm)
24.4 (620)
Temperature Uniformity °C
±5
Exterior Height Inches (mm)
78 (1980)
Footprint Depth inches (mm)
38.6 (980)
Footprint Width inches (mm)
35.4 (895)
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 727 lbs (330 kgs)
Power Cord Length Foot (Meter)
8.2 ft (2.5m)
Est. Shipping Depth Inches (mm)
41 (1041)
Est. Shipping Width Inches (mm)
37 (940)
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)
20.4 (578)
Adjustable High/Low Temperature Alarms
True
Exterior Depth with Door Open Inches (mm)
69 (1754)
Cool Down Time (25°C ambient to 80°C) in Minutes
270
Warm Up Time (25°C ambient 80°C to 50°C) in Minutes
260
1 Minutes Door Open Recovery Time (25°C ambient running temp 75°C) in Minutes
30
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.

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