The Thermo Scientific TSX4505C Chromatography Refrigerator is a large-capacity, high-performance laboratory refrigerator designed specifically for chromatography, protein purification, refrigerated fraction collection, and other workflows requiring controlled refrigerated conditions around laboratory instrumentation. With approximately 45.8 cu. ft. of capacity, a 3°C to 7°C operating range, double sliding glass doors, chromatography access ports, and Thermo Scientific V-drive refrigeration technology, the TSX4505C provides a purpose-built refrigerated workspace for modern research and analytical laboratories.
As part of the Thermo Scientific TSX Series, the TSX4505C combines precise temperature management with a refrigeration system designed to adjust cooling performance according to demand. This makes it particularly attractive for laboratories looking for a large chromatography refrigerator that can provide reliable temperature control while reducing the energy consumption, noise, and heat output associated with many older high-performance refrigeration systems.
This used Thermo Scientific TSX4505C chromatography refrigerator is tested and reconditioned by American Instrument Exchange prior to shipment and includes a 90-day warranty.
Key Features
Approximately 45.8 cu. ft. capacity for chromatography equipment, reagents, samples, and associated materials
3°C to 7°C operating range with a nominal 5°C setpoint
Double sliding glass doors for convenient access and interior visibility
Purpose-built configuration for chromatography and protein purification workflows
V-drive refrigeration technology that adjusts compressor operation according to cooling demand
Chromatography access ports for routing tubing, cables, probes, and other connections
Forced-air circulation for consistent cabinet temperatures
Microprocessor-based electronic temperature control
Digital temperature display
Adjustable shelving for flexible interior configuration
Audible and visual alarm functions
Remote alarm contacts for connection to compatible monitoring systems
Automatic defrost
Low-noise, low-heat-output operation compared with many conventional refrigeration platforms
90-day warranty from American Instrument Exchange
Overview
Chromatography refrigerators are designed to do more than store samples at refrigerated temperatures. Many chromatography and protein purification procedures require columns, collection vessels, fraction collectors, tubing, buffers, and other components to remain under controlled refrigerated conditions throughout a separation or purification process.
The Thermo Scientific TSX4505C provides a large, purpose-built refrigerated workspace for these applications. Its approximately 45.8 cu. ft. chamber offers substantial room for chromatography apparatus while leaving space for buffers, reagents, samples, and related supplies.
Access ports allow tubing, monitoring probes, cables, and other connections to pass between the refrigerated chamber and external equipment without being routed through the door opening. This helps laboratories create a cleaner chromatography setup while minimizing interference with the refrigerator's door seals.
The double sliding glass doors are another important feature for active chromatography workflows. Researchers can visually monitor columns, collection vessels, samples, and other equipment without opening the refrigerator. When access is required, the sliding configuration allows only the necessary portion of the chamber to be opened.
What particularly distinguishes the TSX4505C from many previous-generation chromatography refrigerators is its V-drive refrigeration system. Rather than relying solely on conventional compressor cycling, the system adjusts compressor operation according to cooling demand. This approach is designed to support temperature stability while reducing energy consumption, noise, and heat output.
For laboratories replacing an older chromatography refrigerator or expanding protein purification capabilities, the TSX4505C provides a modern combination of capacity, accessibility, temperature performance, and operating efficiency.
Common Applications
The Thermo TSX4505C is well suited for protein purification, column chromatography, FPLC workflows, refrigerated fraction collection, buffer preparation and storage, biochemical separations, sample preparation, and other temperature-sensitive analytical procedures.
The large chamber can accommodate chromatography columns, collection vessels, fraction collectors, tubing assemblies, and associated equipment while maintaining a controlled refrigerated environment throughout the procedure.
The TSX4505C can also provide refrigerated storage for proteins, enzymes, buffers, reagents, biological samples, media, standards, controls, and other laboratory materials compatible with its operating temperature range.
This versatility allows laboratories to use the refrigerator as an active chromatography workspace while retaining additional capacity for routine refrigerated materials.
Ideal Laboratory Types
The Thermo Scientific TSX4505C is particularly well suited for biotechnology companies, pharmaceutical research facilities, protein purification laboratories, academic research groups, biochemistry laboratories, analytical laboratories, life science facilities, and industrial R&D laboratories.
Its large capacity makes it especially useful for facilities running regular chromatography or purification workflows, laboratories with multiple researchers sharing refrigerated instrumentation, and organizations processing substantial volumes of temperature-sensitive biological material.
The TSX platform can also be attractive to laboratories replacing older high-performance chromatography refrigerators where electrical consumption, heat generation, and equipment noise have become operational concerns.
Performance & Temperature Uniformity
The Thermo Scientific TSX4505C is designed to operate within a 3°C to 7°C temperature range, centered around a nominal 5°C setpoint appropriate for many chromatography, protein purification, and refrigerated laboratory applications.
Forced-air circulation distributes conditioned air throughout the chamber to promote consistent temperatures across the large interior. Maintaining appropriate airflow is particularly important in chromatography applications, where equipment, collection vessels, and other components may occupy substantially more interior volume than conventional sample containers.
The V-drive refrigeration system adjusts compressor operation according to conditions inside the cabinet. During periods of stable operation, the system can operate at reduced demand. When additional cooling is required following door openings or changes in cabinet conditions, compressor output can increase to support temperature recovery.
The TSX4505C also incorporates alarm functionality designed to alert laboratory personnel to conditions that could compromise refrigerated materials. Remote alarm connectivity provides an additional option for facilities using compatible external monitoring or building management systems.
Sample Storage Recommendations
For routine storage, reagents, buffers, samples, and containers should be arranged to maintain adequate airflow throughout the chamber. Avoid tightly packing materials against air passages or completely filling individual shelf areas in ways that could restrict circulation.
When configuring the TSX4505C for chromatography, allow adequate clearance around columns, collection vessels, fraction collectors, tubing, and other components. Larger pieces of equipment should be positioned so they do not interfere with major airflow paths.
The chromatography access ports should be used whenever practical for tubing, cables, probes, and other external connections instead of routing these components through the door opening.
For high-value samples, critical biological materials, or regulated applications, laboratories should consider independent temperature monitoring or data logging in addition to the refrigerator's onboard temperature control and alarm systems.
Key Specifications
Specification
Thermo Scientific TSX4505C
Manufacturer
Thermo Scientific
Series
TSX
Model
TSX4505C
Product Type
High-performance chromatography refrigerator
Configuration
Upright, double-door
Door Type
Double sliding glass
Capacity
Approximately 45.8 cu. ft.
Temperature Range
3°C to 7°C
Nominal Setpoint
5°C
Exterior Dimensions
Approximately 56.5"W × 37.5"D × 78.5"H
Interior Dimensions
Approximately 52.5"W × 28.5"D × 58"H
Refrigeration Technology
V-drive variable-capacity refrigeration
Air Circulation
Forced-air
Temperature Control
Microprocessor / electronic
Temperature Display
Digital
Door Configuration
2 sliding glass doors
Access Ports
Chromatography access ports
Shelving
Adjustable
Alarm Functions
Audible and visual
Remote Alarm Contacts
Yes
Defrost
Automatic
Electrical Requirements
115V, 60 Hz
Warranty
90 days from American Instrument Exchange
Energy Efficiency & Operating Costs
Energy efficiency is one of the most significant advantages of the Thermo Scientific TSX Series compared with many earlier generations of high-performance laboratory refrigerators.
The TSX4505C uses V-drive refrigeration technology, which adjusts compressor operation according to the actual cooling requirements of the cabinet. Rather than operating at full cooling capacity whenever the compressor is active, the system can reduce output during periods of stable operation and increase cooling capacity when conditions demand it.
For laboratories operating large refrigerators continuously, reductions in electrical consumption can become meaningful over the service life of the equipment. Lower heat rejection can also reduce the amount of heat released into the laboratory, potentially decreasing the cooling burden placed on the facility's HVAC system.
The V-drive system is also designed for quieter operation than many traditional compressor systems, which can be an advantage when large refrigeration equipment is installed directly in occupied laboratory spaces.
The double sliding glass doors can further support efficient operation by allowing researchers to inspect equipment and locate materials before opening the refrigerator. When access is required, only part of the chamber needs to be exposed.
Actual electrical consumption will depend on ambient laboratory temperature, refrigerator loading, door-opening frequency, temperature setpoint, and operating conditions.
Refurbishment & Testing
American Instrument Exchange technicians inspect, clean, test, and recondition used Thermo Scientific TSX chromatography refrigerators prior to shipment.
Temperature performance is verified using calibrated temperature measurement equipment to confirm cooling performance and the accuracy of the refrigerator's controls and temperature display. The V-drive refrigeration system, electronic controls, alarms, doors, glass, gaskets, shelving, access ports, and other major components are inspected for proper condition and operation.
Hardware and components are repaired or replaced as necessary during the refurbishment process. The refrigerator is then thoroughly cleaned and prepared for shipment.
This Thermo Scientific TSX4505C chromatography refrigerator includes a 90-day warranty from American Instrument Exchange.
Shipping & Installation
The Thermo TSX4505C is a large, full-height chromatography refrigerator with exterior dimensions of approximately 56.5"W × 37.5"D × 78.5"H. Laboratories should evaluate the complete delivery path before ordering.
Loading docks, freight elevators, corridors, doorways, and laboratory entrances should be checked to ensure adequate clearance. Particular attention should be paid to the refrigerator's width and depth, as large-capacity chromatography refrigerators may require wider access than standard laboratory doors provide.
Appropriate material-handling equipment should be available for unloading and positioning the refrigerator at its final location.
Once installed, the TSX4505C should be positioned on a level surface with appropriate ventilation clearance and connected to a suitable 115V, 60 Hz electrical supply. Allow the refrigerator to reach and stabilize at the desired operating temperature before loading temperature-sensitive materials or beginning chromatography procedures.
Related Laboratory Equipment
American Instrument Exchange carries a broad selection of laboratory refrigerators, including chromatography refrigerators, general-purpose refrigerators, glass-door refrigerators, pharmaceutical refrigerators, and other high-performance cold-storage systems.
Laboratories requiring colder storage conditions can also explore laboratory freezers and ultra-low temperature freezers, while facilities working with long-term biological preservation can choose from available cryogenic storage systems.
For chromatography and protein purification workflows, American Instrument Exchange also offers complementary equipment including refrigerated centrifuges, high-speed centrifuges, balances, water baths, shakers, incubators, and other refurbished laboratory equipment.
Frequently Asked Questions
What makes the Thermo TSX4505C different from a standard laboratory refrigerator?
The TSX4505C is configured specifically for chromatography and protein purification applications. Its large refrigerated chamber, sliding glass doors, access ports, and high-performance forced-air refrigeration system allow chromatography equipment and associated components to operate within a controlled refrigerated environment.
What is V-drive refrigeration technology?
Thermo Scientific's V-drive system uses variable-capacity refrigeration that adjusts compressor operation according to the cooling requirements of the refrigerator. This allows the system to reduce output during stable operating periods and increase cooling when additional capacity is required, helping balance temperature performance with energy efficiency.
What is the temperature range of the TSX4505C?
The TSX4505C is designed to operate from approximately 3°C to 7°C, with a nominal setpoint of 5°C. This range is appropriate for many chromatography, protein purification, reagent storage, and refrigerated research applications.
Can the TSX4505C be used for FPLC and protein purification?
Yes. The TSX4505C is particularly well suited for FPLC, protein purification, column chromatography, and refrigerated fraction collection because its large chamber and chromatography access ports can accommodate tubing, columns, collection vessels, probes, and other components required for these workflows.
Why are sliding glass doors useful on a chromatography refrigerator?
Glass doors allow researchers to monitor chromatography equipment, collection vessels, and samples without opening the refrigerator. The sliding configuration also provides access to one section of the chamber without exposing the entire interior and avoids the large clearance area required by outward-swinging doors.
Can the TSX4505C also be used for ordinary laboratory storage?
Yes. In addition to chromatography applications, the TSX4505C can store compatible proteins, enzymes, buffers, reagents, biological samples, media, standards, and controls requiring refrigerated conditions within its specified operating range.
Is the TSX4505C more energy efficient than older chromatography refrigerators?
The TSX platform was designed with improved energy efficiency as a major objective. Its V-drive variable-capacity refrigeration technology can reduce energy consumption and heat output compared with many conventional older-generation high-performance laboratory refrigerators, although actual consumption depends on installation and operating conditions.
Is a refurbished TSX4505C a good alternative to buying a new chromatography refrigerator?
For laboratories that need a modern, large-capacity chromatography refrigerator but want to reduce capital equipment costs, a properly refurbished TSX4505C can provide an attractive alternative to new equipment. The TSX platform offers relatively modern refrigeration technology, large working capacity, chromatography-specific features, and broad suitability for protein purification workflows.
How does American Instrument Exchange test the TSX4505C before shipment?
American Instrument Exchange verifies refrigerator performance using calibrated temperature measurement equipment. The refrigeration system, controls, temperature display, alarms, doors, gaskets, access ports, shelving, and other major components are inspected and tested, with repairs or component replacement performed as necessary before shipment.
Does this Thermo TSX4505C include a warranty?
Yes. This used and reconditioned Thermo Scientific TSX4505C chromatography refrigerator includes a 90-day warranty from American Instrument Exchange.
CLICK HERE to see the Thermo TSX505CA High-Performance Chromatography Refrigerator on our YouTube channel
Testing Procedures for Used and Refurbished Laboratory Refrigerators Ensure Temperature Stability and Cold Storage Accuracy
Used and refurbished laboratory refrigerators from American Instrument Exchange are thoroughly tested to ensure reliable cold storage performance, temperature accuracy, and compliance with laboratory safety and storage standards. Each unit undergoes a detailed inspection and functional verification to meet the requirements of clinical, pharmaceutical, research, and industrial labs.
Why Testing Used Laboratory Refrigerators Is Essential
Before a laboratory refrigerator is reintroduced into any laboratory setting, it must be carefully tested for:
• Temperature uniformity and stability
• Cooling system integrity and compressor function
• Door seal performance and insulation effectiveness
• Electrical safety and compliance with lab standards
Thorough testing minimizes the risk of temperature excursions, product loss, and system failures—especially critical for storing reagents, vaccines, biological samples, pharmaceuticals, and temperature-sensitive materials.
Our structured testing protocol ensures refurbished lab refrigerators deliver consistent, dependable performance across all makes and models.
Key Testing Procedures for Refurbished and Used Laboratory Refrigerators
1. Initial Visual Inspection
• Check exterior surfaces, hinges, and door gaskets for wear, corrosion, or damage
• Inspect power cords, plugs, and control panels for fraying or visible defects
• Verify that shelves, racks, and internal compartments are present and functional
2. Functional Testing
• Power on the refrigerator and verify that display screens, alarms, and controls function properly
• Test door latches and sealing mechanisms to ensure secure closure and insulation
• Run preliminary temperature cycles to observe startup behavior and cooling response
3. Temperature and Stability Testing
• Test internal temperature sensors and controllers using thermometers/probes
• Monitor temperature at multiple points within the chamber over an extended period
• Verify accuracy across user-defined setpoints (e.g., +4°C, +2°C to +8°C range)
4. Cooling System and Compressor Evaluation
• Test compressor startup, cycling, and operating noise levels
• Inspect condenser coils and fans for proper function and cleanliness
• Check refrigerant pressure (if applicable) and confirm there are no leaks or system inefficiencies
5. Electrical Safety and Compliance Checks
• Ensure all internal and external electrical components are properly grounded
• Perform insulation resistance and leakage current tests 6. Final Quality Assurance Checklist
• Run full operational tests over a 24-hour period
• Document temperature logs, control responsiveness, and system performance
• Complete a detailed service report
All refurbished laboratory refrigerators from American Instrument Exchange are backed by our rigorous testing standards and quality commitment. From vaccine storage to reagent preservation, you can count on consistent cold storage performance from day one.
Repair and Refurbishment Protocol for Used Laboratory Refrigerators Cold Storage Performance from American Instrument Exchange
At American Instrument Exchange, every used laboratory refrigerator we offer is subjected to a comprehensive repair and refurbishment protocol. Whether it’s a general-purpose lab refrigerator, pharmaceutical-grade unit, or undercounter model, our goal is to restore each system to peak performance—ensuring consistent temperature control and reliable to laboratory storage standards.
Why Choose a Refurbished Laboratory Refrigerator 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 refrigerator 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, lab-safe 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 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., +2°C to +8°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 under real-world conditions
• Final cleaning, inspection, and performance validation
• Detailed service report with temperature logs, repair notes, and certification of refurbishment
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, reagents, and research materials 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.
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.
