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LAB EQUIPMENT REPAIRS, INCLUDING ULTRALOW FREEZERS, FRIDGES, CENTRIFUGES AND MORE - Click here for details
LAB EQUIPMENT REPAIRS, INCLUDING ULTRALOW FREEZERS, FRIDGES, CENTRIFUGES AND MORE - Click here for details
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Circulators

Circulators

American Instrument Exchange offers used and refurbished laboratory circulators for sale, designed for precise temperature control in scientific, clinical, pharmaceutical, and research applications. Our inventory includes refrigerated circulators, heated circulators, recirculating chillers, immersion circulators, and laboratory temperature control systems from trusted manufacturers including Thermo Fisher Scientific, Julabo, PolyScience, Lauda, and Huber.

Laboratories use circulators for a wide range of applications including sample cooling, temperature-controlled reactions, rotary evaporation, analytical instrumentation, viscosity testing, jacketed reactor systems, and other temperature-sensitive laboratory processes. When selecting a laboratory circulator, buyers should consider temperature range, cooling and heating capacity, circulation performance, reservoir size, control accuracy, and compatibility with their laboratory workflow. Choosing the correct circulator can improve process stability, reproducibility, and overall laboratory efficiency.

American Instrument Exchange has extensive experience refurbishing laboratory equipment, including refrigerated and heated circulators. Our technicians inspect and test each unit to verify proper cooling and heating operation, temperature stability, pump functionality, controller performance, and overall system reliability prior to shipment. All systems are cleaned, serviced, and evaluated to help ensure dependable operation upon arrival at your facility.

Our inventory includes immersion circulators for water bath applications, refrigerated circulators for low-temperature processes, heated circulators for precise thermal control, and recirculating chillers for analytical and industrial laboratory equipment. These systems are commonly used in life science research, pharmaceutical laboratories, biotechnology facilities, chemical processing applications, environmental testing laboratories, and industrial research environments.

Browse our selection of used laboratory circulators for sale to find reliable temperature control equipment at competitive prices. Specifications are provided to assist with laboratory planning, application compatibility, and installation requirements.

Lauda Variocool VC 2000 Recirculating Chiller
Lauda Variocool VC 2000 Recirculating Chiller
$0.00 - $0.00
$0.00
$0.00 - $0.00
$0.00

Lauda Variocool VC 2000 Recirculating Chiller

Lauda
Low stock

Lauda Variocool VC 2000 Recirculating Chiller The Lauda Variocool VC 2000 Recirculating Chiller offers a broad performance spectrum for demanding t...

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$0.00 - $0.00
$0.00
$0.00 - $0.00
$0.00
LAUDA PRO RP 245 E Cooling Circulation Thermostat
LAUDA PRO RP 245 E Cooling Circulation Thermostat
$5,000.00 - $5,000.00
$5,000.00
$5,000.00 - $5,000.00
$5,000.00

LAUDA PRO RP 245 E Cooling Circulation Thermostat

Lauda
Low stock

LAUDA PRO RP 245 E Thermostat The LAUDA PRO RP 245 E Cooling Circulation Thermostat is a powerful bath thermostat that can precisely control temper...

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$5,000.00 - $5,000.00
$5,000.00
$5,000.00 - $5,000.00
$5,000.00
Huber Unistat tango
Huber Unistat tango
$9,100.00 - $9,100.00
$9,100.00
$9,100.00 - $9,100.00
$9,100.00

Huber Unistat Tango Chiller

Huber
Low stock

Huber Unistat tango Dynamic Temperature Control System / Circulation Thermostat The Huber Unistat tango Dynamic Temperature Control System offers a...

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$9,100.00 - $9,100.00
$9,100.00
$9,100.00 - $9,100.00
$9,100.00
Lauda WKL600 Recirculating Chiller
Lauda WKL600 Recirculating Chiller
$3,800.00 - $3,800.00
$3,800.00
$3,800.00 - $3,800.00
$3,800.00

Lauda WKL-600

Lauda
Low stock

Lauda WKL600 Recirculating Chiller The Lauda WKL600 recirculating chiller excels in environments where operating heat must be discharged quickly an...

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$3,800.00 - $3,800.00
$3,800.00
$3,800.00 - $3,800.00
$3,800.00
Thermo SC150 Heated Circulator
$0.00 - $0.00
$0.00
$1,450.00
$1,450.00 - $1,450.00
$1,450.00

Thermo SC150 heated bath

Thermo
Low stock

Thermo SC150 Heated Immersion Circulator with Haake A5B Bath The Thermo SC150 Heating Immersion Circulator offers precise temperature control for v...

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$0.00 - $0.00
$0.00
$1,450.00
$1,450.00 - $1,450.00
$1,450.00
VWR 1173-PD Recirculating Chiller
$2,650.00 - $2,650.00
$2,650.00
$2,650.00 - $2,650.00
$2,650.00

VWR 1173PD Recirculating Chiller

VWR
In stock

VWR 1173-PD Recirculating Chiller The VWR Model 1173-PD Recirculating Chiller delivers efficient cooling with a positive displacement pump providin...

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$2,650.00 - $2,650.00
$2,650.00
$2,650.00 - $2,650.00
$2,650.00
PolyScience 58809TD9A25R1 Recirculating Chiller - Left side view
PolyScience 58809TD9A25R1 Recirculating Chiller - front view
$0.00 - $0.00
$0.00
$0.00 - $0.00
$0.00

PolysSience 58809TD9A25R1 Recirculating Chiller

Polyscience
In stock

PolyScience 58809TD9A25R1 1.5 HP High-Capacity Recirculating Chiller The PolyScience 58809TD9A25R1 High-Capacity Recirculating Chiller is the ideal...

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$0.00 - $0.00
$0.00
$0.00 - $0.00
$0.00
VWR 1171MD Recirculating Chiller
VWR 1171MD Recirculating Chiller
$4,500.00 - $4,500.00
$4,500.00
$4,500.00 - $4,500.00
$4,500.00

VWR 1171MD chiller

VWR
Low stock

VWR 1171MD Recirculating Chiller The VWR 1171MD Recirculating Chiller offers technology that automatically adjusts the cooling fan speed to match t...

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$4,500.00 - $4,500.00
$4,500.00
$4,500.00 - $4,500.00
$4,500.00
$1,000.00 - $1,000.00
$1,000.00
$1,000.00 - $1,000.00
$1,000.00

Thermo SC150 immersion circulator

Thermo
Low stock

Thermo SC150 immersion circulator The Thermo SC150 heating immersion circulator features a low-liquid level alarm for Safety Class III, automatic c...

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$1,000.00 - $1,000.00
$1,000.00
$1,000.00 - $1,000.00
$1,000.00
Julabo FL1701 Recirculating Chiller
Julabo FL1701 Recirculating Chiller
$5,100.00 - $5,100.00
$5,100.00
$5,100.00 - $5,100.00
$5,100.00

Julabo FL1701 Recirculating Chiller

Julabo
In stock

Julabo FL1701 Recirculating Chiller The Julabo FL1701 Recirculating Chiller is designed for routine laboratory cooling applications. PID temperatur...

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$5,100.00 - $5,100.00
$5,100.00
$5,100.00 - $5,100.00
$5,100.00
Julabo FL601 Recirculating Chiller
Julabo FL601 Recirculating Chiller
$4,500.00 - $4,500.00
$4,500.00
$4,500.00 - $4,500.00
$4,500.00

Julabo FL601 Recirculating Chiller

Julabo
In stock

Julabo FL601 Recirculating Chiller Julabo FL601 Recirculating Chiller for routine laboratory cooling applications. PID temperature control provides...

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$4,500.00 - $4,500.00
$4,500.00
$4,500.00 - $4,500.00
$4,500.00
VWR 13271-204 Recirculating Chiller
VWR 13271-204 Recirculating Chiller
$4,000.00 - $4,000.00
$4,000.00
$4,000.00 - $4,000.00
$4,000.00

VWR Recirculating Chiller

VWR
Low stock

VWR 13271-204 Recirculating Chiller The VWR 13271-204 Recirculating Chiller provides stable and reliable cooling for many common heat removal appli...

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$4,000.00 - $4,000.00
$4,000.00
$4,000.00 - $4,000.00
$4,000.00
image coming soon
$4,500.00 - $4,500.00
$4,500.00
$4,500.00 - $4,500.00
$4,500.00

Julabo FP50 refrigerated circulator

American Instrument Exchange
Low stock

Julabo FP50-HP Basis Refrigerated/Heating Circulator The Julabo FP50-HP Basis Refrigerated/Heating Circulator combines refrigeration and heating ca...

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$4,500.00 - $4,500.00
$4,500.00
$4,500.00 - $4,500.00
$4,500.00
Kruss PT31
Kruss PT31 Peltier Circulation Thermostat
$1,000.00 - $1,000.00
$1,000.00
$1,000.00 - $1,000.00
$1,000.00

Krus PT31 Peltier Circulator

Krus
Low stock

Kruss PT31 Peltier Circulation Thermostat The Kruss PT31 Peltier circulation thermostat is equipped with high-performance functions. The 1.5 kg lig...

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$1,000.00 - $1,000.00
$1,000.00
$1,000.00 - $1,000.00
$1,000.00
Lauda WK1200 Recirculating Chiller
Lauda WK1200 Recirculating Chiller
$2,500.00 - $2,500.00
$2,500.00
$2,500.00 - $2,500.00
$2,500.00

Lauda WK1200 Recirculating Chiller

Lauda
Low stock

Lauda WK1200 Recirculating Chiller The Lauda WK1200 Recirculating Chiller is used where operating heat has to be discharged reliably and quickly in...

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$2,500.00 - $2,500.00
$2,500.00
$2,500.00 - $2,500.00
$2,500.00
Thermo Haake A10 Refrigerated Circulator
Thermo Haake A10 Refrigerated Circulator
$3,800.00 - $3,800.00
$3,800.00
$3,800.00 - $3,800.00
$3,800.00

Thermo Haake A10 Refrigerated Circulator with AC200 Head

Thermo
Low stock

Thermo Haake A10 Refrigerated Circulator with AC200 Head The Thermo Haake A10 Refrigerated Circulator with AC200 Head provides efficient cooling fo...

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$3,800.00 - $3,800.00
$3,800.00
$3,800.00 - $3,800.00
$3,800.00
Fisher Isotemp 3028H
Fisher Isotemp 3028H
$1,950.00 - $1,950.00
$1,950.00
$1,950.00 - $1,950.00
$1,950.00

Fisher Isotemp 3028H

Fisher
Low stock

Fisher Isotemp Heated Circulating Water Bath The Fisher Isotemp Heated Circulating Water Bath is a solid general purpose heating circulator with a ...

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$1,950.00 - $1,950.00
$1,950.00
$1,950.00 - $1,950.00
$1,950.00
Thermo Haake A25 Refrigerated Circulator
Thermo Haake A25 Refrigerated Circulator
$4,100.00 - $4,100.00
$4,100.00
$4,100.00 - $4,100.00
$4,100.00

Thermo Haake A25 Refrigerated Circulator with AC150 Head

Thermo
Low stock

Thermo Haake A25 Refrigerated Circulator with AC150 Head The Thermo Haake A25 Refrigerated Circulator with AC150 Head provides efficient cooling fo...

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$4,100.00 - $4,100.00
$4,100.00
$4,100.00 - $4,100.00
$4,100.00
PolyScience AD07R-20-A12E
PolyScience AD07R-20-A12E
$3,100.00 - $3,100.00
$3,100.00
$3,100.00 - $3,100.00
$3,100.00

Polyscience AD07R-20-A12E

Polyscience
Low stock

PolyScience AD07R-20-A12E Refrigerated Circulator The PolyScience AD07R-20-A12E Refrigerated Circulator is intended for the precise temperature con...

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$3,100.00 - $3,100.00
$3,100.00
$3,100.00 - $3,100.00
$3,100.00
$4,800.00 - $4,800.00
$4,800.00
$4,800.00 - $4,800.00
$4,800.00

Thermo Scientific Neslab ThermoFlex 2500

Thermo
Low stock

Thermo Scientific Neslab ThermoFlex 2500 The Thermo Scientific Neslab ThermoFlex 2500 recirculating chiller offers powerful cooling, expansive temp...

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$4,800.00 - $4,800.00
$4,800.00
$4,800.00 - $4,800.00
$4,800.00
PolyScience WhisperCool N0772036 Chiller
PolyScience WhisperCool N0772036 Chiller
$2,950.00 - $2,950.00
$2,950.00
$2,950.00 - $2,950.00
$2,950.00

Polyscience N0772036

Polyscience
Low stock

PolyScience WhisperCool N0772036 Chiller The PolyScience WhisperCool N0772036 Chiller offers quiet and energy-efficient heat removal for sensitive ...

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$2,950.00 - $2,950.00
$2,950.00
$2,950.00 - $2,950.00
$2,950.00
Cole Parmer Polystat 1W5P
Cole Parmer Polystat 1W5P
$590.00 - $590.00
$590.00
$590.00 - $590.00
$590.00

Cole Parmer Polystat 1W5P

Cole Parmer
Low stock

Cole Parmer Polystat Heated Circulating Bath The Cole Parmer Polystat Heating Circulating Baths can pump to an external system. The intended use of...

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$590.00 - $590.00
$590.00
$590.00 - $590.00
$590.00
VWR 1179MD Recirculating Chiller
VWR 1179MD Recirculating Chiller
$2,200.00 - $2,200.00
$2,200.00
$2,200.00 - $2,200.00
$2,200.00

VWR 1179MD circulator

VWR
Low stock

VWR 1179MD Recirculating Chiller The VWR 1179MD Recirculating Chiller offers technology that automatically adjusts the cooling fan speed to match t...

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$2,200.00 - $2,200.00
$2,200.00
$2,200.00 - $2,200.00
$2,200.00
PerkinElmer Intracooler N5374099
PerkinElmer Intracooler N5374099
$3,500.00 - $3,500.00
$3,500.00
$3,500.00 - $3,500.00
$3,500.00

PerkinElmer Intracooler N5374099

Polyscience
Low stock

PerkinElmer Intracooler Series Chiller The PerkinElmer Intracooler Series Chiller delivers reliable and efficient cooling for laboratory applicatio...

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$3,500.00 - $3,500.00
$3,500.00
$3,500.00 - $3,500.00
$3,500.00