JULABO FP50-HP Basis Refrigerated/Heating Circulator

Product Code : SKU 1467EE CIRC

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JULABO FP50-HP Basis Refrigerated/Heating Circulator

The JULABO FP50-HP Basis Refrigerated/Heating Circulator is a high-performance laboratory temperature-control system designed for both heating and cooling applications from -50°C to +200°C. With refrigeration capacity up to 900 W at +20°C, an 8 L reservoir, and both internal bath and external circulation capabilities, the FP50-HP provides a versatile solution for laboratories that need to control temperatures across a substantially wider range than a conventional water bath or recirculating chiller.

Available used and refurbished from American Instrument Exchange, this JULABO FP50-HP can be used for temperature-controlled reactions, analytical instrumentation, materials testing, viscosity studies, external process cooling and heating, and direct temperature conditioning of small samples within the bath. A 90-day warranty is included.

Key Features

Wide -50°C to +200°C operating temperature range
Refrigerated and heated circulation in one system
Cooling capacity up to 900 W at +20°C
Approximately ±0.1°C temperature stability for this configuration
8 L reservoir capacity
Compact bath opening for direct sample temperature control
Supports external closed-loop temperature-control applications
Microprocessor-based temperature regulation
Digital display for straightforward monitoring and operation
Suitable for both below-ambient cooling and high-temperature applications
Used, refurbished, and tested by American Instrument Exchange
90-day warranty included

Overview

The JULABO FP50-HP is a refrigerated/heating circulator designed for applications requiring considerably more temperature flexibility than a standard laboratory water bath or dedicated recirculating chiller. Its refrigeration system allows operation down to -50°C, while the integrated heater extends the operating range to +200°C.

This broad temperature range allows a single circulator to support applications ranging from subzero materials testing and reaction control to elevated-temperature sample conditioning and external process heating.

Unlike chillers intended primarily to remove heat from external equipment, the FP50-HP can support both internal and external temperature-control applications. Samples and small vessels can be placed directly into the integrated bath, while temperature-controlled fluid can also be circulated through compatible external equipment.

This flexibility makes the FP50-HP useful for laboratories performing multiple temperature-sensitive procedures or requiring a circulator that can be reassigned among different instruments and experiments.

Key Specifications

Specification	Details
Manufacturer	JULABO
Model	FP50-HP Basis
Equipment Type	Refrigerated/heating circulator
Temperature Range	-50°C to +200°C
Temperature Stability	Approx. ±0.1°C
Cooling Capacity at +20°C	900 W
Reservoir Capacity	8 L
Bath Opening	7.1 in. W × 4.7 in. L
Bath Depth	5.9 in.
Temperature Control	Microprocessor-based
Applications	Internal bath and external circulation
Exterior Dimensions	16.5 in. W × 19.3 in. D × 27.6 in. H
Electrical Requirements	230 V, 60 Hz
Weight	Approx. 125 lb
Warranty	90 days

Common Applications

The JULABO FP50-HP can be used for temperature-controlled chemical reactions, sample conditioning, materials testing, viscosity measurements, analytical instrumentation, external reactor temperature control, condenser cooling, photometers, refractometers, and other laboratory procedures requiring controlled heating or cooling.

Its ability to operate well below ambient temperature makes it particularly useful for processes that cannot be adequately cooled by a conventional water bath. At the same time, the +200°C upper operating limit allows the system to perform many elevated-temperature procedures that are outside the capabilities of typical recirculating chillers.

The integrated bath also provides a convenient temperature-controlled environment for small samples, vessels, and calibration procedures.

Ideal Laboratory Types

The JULABO FP50-HP is well suited for chemistry, pharmaceutical, biotechnology, materials-science, analytical, petrochemical, industrial R&D, quality-control, and academic research laboratories.

It is particularly useful for laboratories that perform temperature-dependent experiments over a wide operating range. Instead of maintaining separate heating and refrigerated circulation systems, compatible applications can potentially be handled with a single FP50-HP.

Laboratories working with jacketed vessels or external analytical instruments can also use the FP50-HP as a dedicated temperature-control source when its heating, cooling, and circulation capabilities match the requirements of the connected equipment.

Temperature Control & Stability

The FP50-HP provides temperature control from -50°C to +200°C, giving laboratories a 250°C operating span within a single refrigerated/heating circulator.

This range makes appropriate heat-transfer-fluid selection particularly important. Water is useful only across a portion of the FP50-HP's capabilities. Subzero and high-temperature applications require a compatible fluid selected according to the intended operating temperature, equipment materials, and laboratory safety requirements.

Cooling performance also varies according to operating temperature and thermal load. The FP50 platform provides approximately 900 W of cooling capacity at +20°C, with available refrigeration capacity decreasing as the fluid temperature moves farther below ambient.

Laboratories should therefore evaluate the thermal load of the intended application at the required operating temperature rather than selecting a circulator based solely on its -50°C minimum temperature.

Circulation & Pump Performance

The FP50-HP continuously circulates heat-transfer fluid through its reservoir to promote uniform bath temperatures and efficient transfer of heating or cooling energy.

For external applications, temperature-controlled fluid can be circulated through compatible jacketed vessels, analytical instruments, heat exchangers, condensers, and other laboratory equipment.

Actual circulation performance through an external system depends on the installed pump configuration as well as tubing diameter and length, fittings, fluid viscosity, operating temperature, elevation differences, and hydraulic resistance within the connected equipment.

Because JULABO offered the FP50 platform with several different controller and pump configurations, laboratories with critical flow or pressure requirements should verify the pump configuration of this specific FP50-HP before purchase rather than relying on specifications published for a different FP50 variant.

Refurbishment & Testing

This used JULABO FP50-HP Refrigerated/Heating Circulator is refurbished and tested by American Instrument Exchange before shipment. Our technicians inspect the refrigeration system, heater, circulation pump, reservoir, temperature controller, display, safety systems, electrical components, and fluid connections.

Temperature-controlled equipment is tested using NIST-traceable probes and data loggers. Because the FP50-HP provides both refrigeration and heating, the unit is operated for extended periods at both lower and higher temperatures to evaluate its ability to cool, heat, circulate fluid, and maintain the selected temperature.

The bath, reservoir, and accessible fluid-contact areas are also cleaned and inspected prior to shipment.

If your application requires operation at a particular temperature or has specific testing requirements, contact American Instrument Exchange before shipment. When practical, our technicians can incorporate customer-requested operating conditions into final testing.

A 90-day warranty is included with this refurbished JULABO circulator.

Choosing the Right Refrigerated/Heating Circulator

The FP50-HP is a particularly versatile choice when an application requires both heating and refrigeration. Its -50°C to +200°C range is substantially broader than that of a conventional laboratory water bath and extends to lower temperatures than many general-purpose recirculating chillers.

Buyers should consider more than temperature range, however. Cooling capacity at the required operating temperature, heating capacity, pump performance, reservoir size, temperature stability, external-loop resistance, heat-transfer-fluid requirements, and available electrical service should all be considered.

For applications requiring only moderate equipment cooling around room temperature, a simpler recirculating chiller may be more economical. For laboratories requiring subzero cooling, high-temperature heating, or both internal bath and external temperature control, the FP50-HP offers considerably greater flexibility.

American Instrument Exchange can help compare available used and refurbished refrigerated circulators and chillers based on your required temperature range, thermal load, circulation requirements, and application.

Related Equipment

American Instrument Exchange stocks a variety of laboratory circulators, including refrigerated/heating circulators, recirculating chillers, immersion circulators, and process temperature-control systems. Laboratories considering the JULABO FP50-HP may also want to compare available laboratory water baths, reactors and fermenters, evaporators and extractors, and other refurbished laboratory equipment.

JULABO FP50-HP Frequently Asked Questions

What is the temperature range of the JULABO FP50-HP?

The JULABO FP50-HP operates from approximately -50°C to +200°C, allowing the same system to perform both refrigerated and elevated-temperature applications.

How much cooling capacity does the JULABO FP50-HP provide?

The FP50 platform provides approximately 900 W of cooling capacity at +20°C. Available cooling capacity decreases at progressively lower operating temperatures, so the application's heat load should be compared with chiller performance at the intended setpoint.

Can the JULABO FP50-HP both heat and cool?

Yes. The FP50-HP is a refrigerated/heating circulator rather than a cooling-only chiller. It can actively refrigerate heat-transfer fluid below ambient temperature and heat compatible fluids for elevated-temperature applications.

Can samples be placed directly in the FP50-HP bath?

Yes. The FP50-HP can be used for direct temperature control of compatible samples and vessels within its integrated bath. The bath opening measures approximately 7.1 × 4.7 inches with a depth of approximately 5.9 inches.

Can the FP50-HP control the temperature of external equipment?

Yes. Temperature-controlled fluid can be circulated through compatible external equipment such as jacketed vessels, analytical instruments, condensers, and other closed-loop systems.

Can water be used across the entire -50°C to +200°C range?

No. Water is suitable for only part of the FP50-HP's operating range. Subzero and high-temperature applications require an appropriate heat-transfer fluid selected for the intended operating conditions.

What electrical service does this JULABO FP50-HP require?

This particular American Instrument Exchange unit is configured for 230 V, 60 Hz electrical service. Buyers should confirm that appropriate electrical service is available before installation.

Does this refurbished JULABO FP50-HP include a warranty?

Yes. This used JULABO FP50-HP is refurbished and tested by American Instrument Exchange and includes a 90-day warranty.

Testing Procedures for Used and Refurbished Laboratory Equipment

Ensure Accuracy, Safety, and Dependable Performance Across Applications

At American Instrument Exchange, all used and refurbished laboratory equipment undergoes a rigorous, multi-point testing protocol to ensure optimal performance, operational safety, and long-term reliability. Whether the equipment is destined for research, diagnostics, quality control, or production environments, our thorough inspection and testing process is designed to meet the highest standards of laboratory excellence.

Why Testing Used Lab Equipment Is Essential

Before any refurbished laboratory equipment is returned to service, it must be carefully tested to verify:

• Functional integrity and operational performance
• Setpoint accuracy and repeatability (where applicable)
• User interface responsiveness and control features

Proper testing reduces the risk of equipment failure, measurement inaccuracies, or user hazards—helping to ensure consistent results in clinical, academic, biotech, and industrial labs.

Our standardized lab equipment testing procedures are tailored to each equipment type, ensuring every unit meets manufacturer specifications and industry benchmarks.

Key Testing Procedures for Refurbished and Used Laboratory Equipment

1. Initial Visual Inspection

• Examine equipment housing for signs of wear, corrosion, or damage
• Check ports, power cords, and exterior components for tampering or deterioration
• Verify that internal and external parts (racks, shelves, connectors, accessories) are present and undamaged

2. Functional Startup and Operational Testing

• Power on the equipment and verify startup diagnostics
• Confirm functionality of displays, buttons, switches, and control panels
• Run basic functions to confirm proper response and behavior under standard operating conditions

3. Testing and Performance Verification

• Test internal sensors or control systems using industry-standard tools
• Perform operational tests to validate accuracy and consistency
• Verify key performance specifications such as temperature control, timing, speed, or measurement outputs, depending on equipment type

4. Mechanical and Electrical System Testing

• Evaluate motors, pumps, fans, or other moving parts for smooth operation
• Inspect and test wiring, relays, fuses, and circuit boards for safety and reliability
• Test power delivery and grounding compliance

5. Safety and Compliance Checks

• Ensure equipment is grounded and insulated to meet laboratory safety standards
• Test alarms, interlocks, emergency stops, or safety shutdown systems if applicable

6. Final Quality Assurance and Documentation

• Perform extended runtime testing
• Document operational logs, testing results, and any repairs or adjustments made
• Complete a final inspection, thorough cleaning, and packaging for delivery

Trusted Quality from American Instrument Exchange

With over 50 years of experience in laboratory equipment refurbishment, American Instrument Exchange is committed to delivering certified, lab-ready instruments backed by expert testing. Our testing protocols ensure that each piece of equipment—regardless of type—is safe, accurate, and dependable from day one.

Whether you're equipping a startup lab or expanding a high-throughput facility, you can count on our refurbished laboratory equipment to perform with precision and reliability.

Refurbishment Protocol for Used Laboratory Equipment from American Instrument Exchange

At American Instrument Exchange, every piece of used laboratory equipment we offer undergoes a multi-step refurbishment process. Whether it's an analytical balance, centrifuge, freezer, oven, or any other essential lab instrument, our goal is to restore each unit to peak performance—ensuring accuracy, safety, and long-term reliability in scientific, clinical, industrial, and academic environments.

Why Choose Refurbished Lab Equipment from American Instrument Exchange?

• Thoroughly tested for performance, precision, and safety
• Backed by a warranty
• A cost-effective alternative to new equipment
• Environmentally sustainable through equipment reuse and waste reduction
• Serviced by expert technicians with decades of laboratory equipment experience

Step-by-Step Refurbishment Protocol

Every instrument and system refurbished at American Instrument Exchange follows a detailed, industry-aligned process:

1. Initial Intake & Inspection

• Complete visual and structural inspection for cosmetic damage, wear, or corrosion
• Mechanical assessment of hinges, seals, fasteners, motors, and moving parts
• Missing components and damaged items are documented for repair or replacement

2. Cleaning and Decontamination

• Full internal and external cleaning using non-abrasive, lab-safe solutions
• Removal of biological, chemical, or particulate contamination
• Disassembly and cleaning of removable parts such as trays, shelves, and filters

3. Mechanical and Electrical Repair

• Replacement or repair of worn or broken mechanical parts
• Evaluation and servicing of control panels, sensors, switches, and displays
• Testing and repair of electrical wiring, fuses, circuit boards, and power supplies

4. Functional System Testing

• Assessment of all major functions specific to the equipment type (e.g., speed, temperature, force, weight, timing)
• Operation of control interfaces, programming menus, and digital displays
• Verification of stabilization time, responsiveness, and user input reliability

5. Testing and Performance Verification

• Testing of internal sensors, controllers, and measurement systems using certified tools
• Multi-point testing to ensure repeatability, accuracy, and performance consistency
• Confirmation of user-defined setpoints, timing sequences, or programmable cycles

6. Safety and Compliance Checks

• Testing of safety interlocks, alarms, and over-limit protection systems (as applicable)
• Electrical safety inspections, including grounding and insulation verification

7. Final Quality Assurance and Documentation

• Full operational testing under simulated lab conditions
• Completion of performance benchmarks, testing results, and repair logs
• Final cleaning and visual inspection

Trust the Experts at American Instrument Exchange

With over 50 years of experience in the laboratory equipment industry, American Instrument Exchange is a trusted leader in high-quality refurbished lab instruments. Our refurbishment protocols ensure that every piece of equipment we sell is lab-ready—offering the precision, performance, and durability your team can count on.

Whether you’re outfitting a new lab or expanding an existing operation, choose American Instrument Exchange for tested, warrantied, and cost-effective laboratory equipment.

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.