Thermo Scientific CryoPlus 4 storage system

Product Code : SKU 1816EE CRYOGEN

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Thermo Scientific CryoPlus 4 storage system

The Thermo Scientific CryoPlus 4 storage system provides a combination of liquid nitrogen storage reliability and microprocessor technology. Storage capacity of up to 38,500 2.0 mL vials make the most of your laboratory storage space.

Thermo Scientific CryoPlus 4 storage system features

Storage capacity 38,500 vials (2.0mL each)
552 liter LN2 capacity
Liquid level control with16 parameters
Autofill system
90-day warranty

16 preset audible and visual alarm combinations provide maximum product protection. Automatic defogger incorporated into the manual fill index to improve visibility during retrieval. Liquid level sensor and fill port within vacuum space, for maximum storage and sensor protection. Front-mounted key lock and rear-mounted recessed power switch; control panel can also be locked. Temperature sleeve (included) provides colder temperatures and efficient vapor phase operation.

Precise liquid level control with over 16 parameters; with autofill system. Control panel mounted on top for convenient access and easy touchpad programming. Digital temperature display sensor located under the lid; this indicates the highest temperature reading inside the tank. 24 tricolor LEDs continuously display actual liquid nitrogen level and high-level/low-level setpoints.

Testing

This Thermo Forma CryoPlus 4 is used and reconditioned. Our technicians test all equipment to confirm that it operates properly and to the manufacturer’s specifications. We can’t test for a specific analytical application. We do our best to simulate laboratory conditions in which the equipment runs.

Additionally, if you have specific testing requirements or requests, please inform us. We address these requirements during testing.

Pictures

The photos above are representative. The equipment shown is currently in storage in our warehouse. In addition to testing each machine we clean all equipment thoroughly prior to shipment.

We often have multiple units of each model in stock. Sometimes we're unable to feature pictures of every single unit. At your request, we can provide pictures of the equipment in your order after testing and cleaning.

For inquiries about the Thermo Forma CryoPlus 4 Cryogenic Storage Tank, call us at 978-521-2221 or fill out the form on this page.

Thermo Scientific CryoPlus 4 Frequently Asked Questions

What is the Thermo Scientific CryoPlus 4 used for?

The CryoPlus 4 is a liquid nitrogen (LN₂) cryogenic storage system designed for long-term preservation of a variety of biological samples including (but not limited to) cell lines, tissues, blood components, and other temperature-sensitive materials. Liquid nitrogen storage systems are ubiquitous in biotechnology, pharmaceutical, clinical, and academic research laboratories. The CryoPlus 4 supports both liquid-phase and vapor-phase storage, allowing laboratories to store samples at extremely low temperatures for extended periods.

How does the automatic fill system work?

The automatic liquid nitrogen fill system on the CryoPlus 4 maintains preset LN₂ levels within the storage vessel. Sensors continuously monitor the liquid level and trigger a solenoid valve that opens to refill the tank when levels fall below a programmed threshold.

This helps ensure consistent cryogenic conditions and reduces the need for manual refilling. (Although in case of a power outage or other emergency the unit can be filled manually to maintain low temperatures and preserve samples.)

What monitoring and alarms does the CryoPlus 4 have?

The system features multiple safety and monitoring features, including:

Liquid level monitoring with LED indicators
Digital temperature display located under the lid
Audible and visual alarm combinations
Remote alarm contacts for external monitoring systems

These alerts help notify users of conditions such as low LN₂ levels, power issues, or temperature changes.

How long can the CryoPlus 4 hold liquid nitrogen without refilling?

Under static conditions (with no lid openings and an empty chamber), the system can maintain liquid nitrogen for approximately 55 days. The insulated design and low evaporation rate are designed to hold this long. Actual holding time will vary based on usage, environmental conditions, and lid openings.

Testing Procedures for Used and Refurbished Laboratory Freezers

Cold Storage Reliability from American Instrument Exchange

At American Instrument Exchange, every used and refurbished laboratory freezer we offer undergoes a comprehensive multi-point testing protocol to ensure optimal performance, temperature stability, and long-term reliability. Our rigorous testing procedures are designed to meet the demanding standards of biomedical, pharmaceutical, research, and clinical environments—so you can trust your freezer to protect your valuable samples and materials.

Why Testing Refurbished Laboratory Freezers Is Critical

Before any laboratory freezer is placed back into service, it must be carefully tested for:

Consistent temperature control and uniformity across internal zones
Compressor functionality and refrigeration system performance
Seal integrity and insulation efficiency to prevent temperature loss
Electrical safety and alarm system operation

Thorough testing minimizes the risk of temperature excursions, equipment failure, and product loss—especially for temperature-sensitive items like reagents, biological samples, and vaccines.

Our structured testing protocol ensures that all used and refurbished laboratory freezers meet or exceed manufacturer specifications and industry expectations.

Key Testing Procedures for Laboratory Freezers

1. Visual and Structural Inspection

Examine the exterior for dents, corrosion, or physical damage
Check door gaskets, hinges, and latches for wear and functionality
Inspect power cords, control panels, and internal compartments

2. Functional Startup and System Check

Power on the unit to verify startup sequence, control panel functionality, and display readability
Test programmable settings, alarms, and door-open sensors
Ensure proper door closure and sealing performance

3. Temperature Performance and Stability Testing

Test temperature sensors using certified thermometers or probes
Monitor chamber temperature at multiple points over extended run periods
Verify temperature uniformity and accuracy across common lab setpoints (e.g., -20°C, -30°C)

4. Compressor and Refrigeration System Evaluation

Test compressor startup, cycling behavior, and operating noise
Check condenser coils, evaporators, and fans for performance and cleanliness
Inspect for refrigerant leaks or pressure issues that may affect efficiency

5. Electrical Safety and Compliance Verification

Confirm proper grounding and insulation of all electrical components
Conduct safety testing to meet laboratory equipment electrical standards
Verify functionality of alarms for power loss, temperature excursions, and system faults

6. Final Quality Assurance and Runtime Validation

Conduct multi-day test cycle to confirm stable performance under continuous use
Record temperature data, alarm responses, and compressor cycling metrics
Complete final inspection and prepare detailed service documentation

Reliable Cold Storage, Backed by Testing Excellence

Each refurbished laboratory freezer from American Instrument Exchange is tested and certified for cold storage accuracy, safety, and performance. Whether upright, undercounter, flammable-material rated, or specialty-purpose, our lab freezers are restored to meet real-world research and clinical demands.

Trust American Instrument Exchange for dependable, tested, and warrantied laboratory refrigeration—ready to support your lab from day one.

Repair and Refurbishment Protocol for Used Laboratory Freezers
Certified Cold Storage Performance from American Instrument Exchange

At American Instrument Exchange, every used laboratory freezer we offer is subjected to a comprehensive repair and refurbishment protocol. Whether it’s a general-purpose lab freezer, flammable-material grade unit, or undercounter model, our goal is to restore each system to peak performance—ensuring consistent temperature control and reliable operation.

Why Choose a Refurbished Laboratory Freezer from American Instrument Exchange?

• Fully tested for cold storage accuracy and operational safety
• Backed by a warranty
• Cost-effective alternative to new refrigeration equipment
• Sustainably refurbished to reduce environmental impact
• Serviced by expert technicians with decades of laboratory equipment experience

Step-by-Step Refurbishment Protocol

Every laboratory freezer from American Instrument Exchange follows a detailed, multi-stage process to ensure top-tier performance and reliability:

1. Initial Intake & Inspection

• Visual inspection for dents, corrosion, or structural damage
• Mechanical check of door hinges, gaskets, seals, and internal components
• Documentation of missing parts or areas requiring repair or replacement

2. Cleaning and Decontamination

• Internal and external cleaning using non-abrasive cleaners
• Decontamination/cleaning of all surfaces to remove biological or chemical residues
• Thorough cleaning of shelving, drawers, and removable interior parts

3. Mechanical and Electrical Repairs

• Replacement or repair of worn mechanical parts (door latches, seals, hinges, etc.)
• Inspection and restoration of control interfaces, thermostats, sensors, and displays
• Evaluation of wiring, relays, fuses, and power supply components for safety and integrity

4. Refrigeration System and Compressor Evaluation

• Testing of compressor function, condenser coils, and evaporators
• Inspection for refrigerant leaks and pressure performance (if applicable)
• Verification of proper airflow, fan operation, and defrost cycles

5. Temperature Calibration and Performance Testing

• Testing of temperature sensors and control boards
• Verification of temperature stability and uniformity throughout the chamber
• Testing of multiple setpoints (e.g., -20°C to -30°C) over extended operating periods

6. Safety and Compliance Checks

• Inspection of grounding and electrical insulation per lab safety standards
• Testing of alarm systems (if applicable) for temperature excursions or power failure

7. Final Quality Control and Documentation

• Multi-day operational test
• Final cleaning, inspection, and performance validation
• Detailed service report with temperature logs and repair notes

Trust the Experts at American Instrument Exchange

With over 50 years of industry experience, American Instrument Exchange is a leading provider of high-quality refurbished laboratory equipment. Our proven laboratory refrigerator refurbishment protocol ensures consistent, accurate cold storage—so you can safeguard your samples with confidence.

Warranty Information

All used equipment sold by American Instrument Exchange is refurbished/reconditioned, tested to meet specifications, cleaned, and comes with a 90-day warranty from the date of shipment unless otherwise specified. New products include a warranty from the manufacturer. Your warranty is only valid if you have paid your invoice. If your invoice is over 30 days old, warranty work will not be performed until your invoice is paid in full. American Instrument Exchange is not liable for any special or consequential damages that result from the use of, or the inability to use, the materials on this site or the performance of the products,

Exceptions include international sales and items that are agreed to be sold with a lesser warranty or items that are agreed to be sold “as is.”

Should there be visible shipping damage to packaging or concealed shipping damage to item(s) supplied, buyer must communicate such damage to the delivering entity or carrier upon receipt first and to American Instrument the same day item is accepted / signed for. Failure to do so voids warranty. Customer decision to involve / procure third party or OEM service other than American Instrument or AIE assigned vendors to resolve in-warranty instrument failure or defect without first placing a service call to American Instrument voids warranty.

Return & Cancellation Policy

American Instrument Exchange will authorize the return of and issue a full refund for any equipment that is not working as represented and could not be replaced or repaired to the customer’s satisfaction by AIE or a representative of AIE during the warranty period. Returns without prior authorization and an RMA number will not be accepted.

Customers are responsible for proper packaging of the equipment and all included accessories. American Instrument will pay for insurance and shipping costs. Non-inventory items bought specifically to fill customer orders may possibly be returned, but on a case by case basis.

Customers who cancel orders after refurbishing has begun or after delivery where there are no equipment performance issues may be subject to a Restocking/Cancellation Fee of 20% or more and responsible for shipping costs for both the delivery and return.

Ongoing and Extended Support Options

American Instrument Exchange is able to provide additional repair and support services outside the warranty terms for most products that sell.

For biosafety cabinets, clean benches, chemical fume hoods, and other clean air products our team at AIE Laboratory Services can provide certifications, repairs, decontaminations, and other services for customers throughout New England, and guidance and limited technical assistance for any customers in the US and Canada for new or refurbished biosafety cabinets purchased from American Instrument Exchange.

For all other products, the repair service team at American Instrument Exchange can provide both field and depot repair evaluations. We can easily schedule and coordinate the pick-up and transportation of your malfunctioning equipment. By offering hourly rates lower than most OEM service providers and eliminating travel time for technicians, we help reduce repair costs. Furthermore, our lab depot repair service minimizes or eliminates scheduling delays. Our experienced service technicians are qualified to restore your equipment to factory specifications.

Please contact our team at info@americaninstrument.com for more details.

FAQ

Does the equipment come with a warranty?

Yes, all equipment from American Instrument Exchange comes with a warranty.
Used/reconditioned/refurbished equipment is tested to make sure it operates to the manufacturer's specifications and comes with a 90-day warranty (unless otherwise noted). New equipment comes with a warranty from the manufacturer.

How do you test and recondition the equipment?

Testing requirements vary across all the equipment categories we sell. Temperature controlled units are tested with NIST traceable probes and data loggers. Gaskets, external housing, glass, handles, controls and control screens are all thoroughly inspected for integrity and functionality.
We test all equipment using the manufacturer's parameters and specifications to confirm that the unit operates properly.

How do products ship from American Instrument Exchange?

We can ship products both nationally and internationally using a well-established network of transporters. Smaller items will ship via UPS. Larger equipment will be palletized and shipped either LTL or air-ride, depending on the specific equipment and/or delivery requirements.

Return and order cancellation policy

American Instrument Exchange will accept the return of any product that is not working as represented and could not be replaced or repaired to the customer's satisfaction during the warranty period. Customers who cancel orders after refurbishing has begun will be subject to a cancellation and restocking fee of between 20% and 40%.

Are discounts available for educational or non-profit institutions, or for bulk purchases?

Yes – call or email us today with a list of equipment you're looking for and we can potentially put together a quote that includes a discount.

How does your price matching policy work?

We strive to keep our pricing competitive and reasonable. If you find comparable items for sale at a lower price from other vendors please send us a link and or quote for the item and we'll do our best to match or beat the price.

Can I see the equipment in person before committing to a purchase?

Customers are welcome to make an appointment to view equipment in our warehouse. Given our workload we may not be able to test or clean the equipment prior to your arrival if you have not committed to an order.

1023 Western Avenue is a working warehouse, not a showroom, and customers should dress appropriately and wear closed toe shoes.

Can I ship products that I purchased elsewhere to American Instrument for repair?

Yes – please see our repair services page for more information.