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.

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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 is a high-performance recirculating chiller designed for precise temperat...

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$0.00 - $0.00

$0.00

$0.00 - $0.00

$0.00

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

Out of stock

LAUDA PRO RP 245 E Cooling Circulation Thermostat The LAUDA PRO RP 245 E is a high-performance cooling and heating circulation thermostat designed ...

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$5,000.00 - $5,000.00

$5,000.00

$5,000.00 - $5,000.00

$5,000.00

Sold out

$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 The Huber Unistat Tango is a high-performance dynamic temperature control system designed fo...

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$9,100.00 - $9,100.00

$9,100.00

$9,100.00 - $9,100.00

$9,100.00

$3,800.00 - $3,800.00

$3,800.00

$3,800.00 - $3,800.00

$3,800.00

Lauda WKL600 Recirculating Chiller

Lauda

Low stock

LAUDA WKL600 Recirculating Chiller The LAUDA WKL600 is a laboratory recirculating chiller designed to provide reliable cooling and temperature-cont...

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$3,800.00 - $3,800.00

$3,800.00

$3,800.00 - $3,800.00

$3,800.00

$0.00 - $0.00

$0.00

$1,450.00

$1,450.00 - $1,450.00

$1,450.00

Thermo Scientific SC150 Heated Circulating Bath

Thermo

Low stock

Thermo Scientific SC150 Heated Circulating Bath with A5B Bath The Thermo Scientific SC150 Heated Circulating Bath with Haake A5B bath provides prec...

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$0.00 - $0.00

$0.00

$1,450.00

$1,450.00 - $1,450.00

$1,450.00

Front eye-level view of a VWR 1173PD recirculating chiller on a stainless steel surface, featuring its blue vented front grille, VWR Recirculator branding, and a top control panel with dual digital LED displays, indicator lights, and a rotary control knob

$2,650.00 - $2,650.00

$2,650.00

$2,650.00 - $2,650.00

$2,650.00

VWR 1173-PD Recirculating Chiller

VWR

In stock

VWR 1173-PD Recirculating Chiller The VWR 1173-PD Recirculating Chiller is a compact laboratory cooling system designed to provide controlled, clos...

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$2,650.00 - $2,650.00

$2,650.00

$2,650.00 - $2,650.00

$2,650.00

A PolyScience high-capacity recirculating chiller, with a digital display and control panel, in a laboratory setting.

$0.00 - $0.00

$0.00

$0.00 - $0.00

$0.00

PolyScience 58809TD9A25R1 High-Capacity Recirculating Chiller

Polyscience

In stock

PolyScience 58809TD9A25R1 High-Capacity Recirculating Chiller The PolyScience 58809TD9A25R1 is a 1.5 HP high-capacity recirculating chiller designe...

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$0.00 - $0.00

$0.00

$0.00 - $0.00

$0.00

$4,500.00 - $4,500.00

$4,500.00

$4,500.00 - $4,500.00

$4,500.00

VWR 1171MD Recirculating Chiller

VWR

Low stock

VWR 1171MD Recirculating Chiller The VWR 1171MD Recirculating Chiller is a compact refrigerated cooling system designed to provide reliable, closed...

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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 Scientific Haake SC150 Immersion Circulator with S5P Bath The Thermo Scientific Haake SC150 is a precision heated immersion circulator paire...

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$1,000.00 - $1,000.00

$1,000.00

$1,000.00 - $1,000.00

$1,000.00

A Julabo FL601 recirculating chiller, with a gray body and blue details, standing on a warehouse floor.

$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 The JULABO FL601 Recirculating Chiller is a compact laboratory cooling system designed to provide reliable, temp...

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$4,500.00 - $4,500.00

$4,500.00

$4,500.00 - $4,500.00

$4,500.00

$4,000.00 - $4,000.00

$4,000.00

$4,000.00 - $4,000.00

$4,000.00

VWR 13271-204 Recirculating Chiller

VWR

Low stock

VWR 13271-204 Recirculating Chiller The VWR 13271-204 Recirculating Chiller is a compact laboratory cooling system designed to provide controlled, ...

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$4,000.00 - $4,000.00

$4,000.00

$4,000.00 - $4,000.00

$4,000.00

$4,500.00 - $4,500.00

$4,500.00

$4,500.00 - $4,500.00

$4,500.00

JULABO FP50-HP Basis Refrigerated/Heating Circulator

American Instrument Exchange

Low stock

JULABO FP50-HP Basis Refrigerated/Heating Circulator The JULABO FP50-HP Basis Refrigerated/Heating Circulator is a high-performance laboratory temp...

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$4,500.00 - $4,500.00

$4,500.00

$4,500.00 - $4,500.00

$4,500.00

Kruss PT31 Peltier Circulation Thermostat

$1,000.00 - $1,000.00

$1,000.00

$1,000.00 - $1,000.00

$1,000.00

KRÜSS PT31 Peltier Circulation Thermostat

Krus

Low stock

KRÜSS PT31 Peltier Circulation Thermostat The KRÜSS PT31 Peltier Circulation Thermostat is an exceptionally compact laboratory temperature-control ...

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$1,000.00 - $1,000.00

$1,000.00

$1,000.00 - $1,000.00

$1,000.00

$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 a high-flow laboratory and process cooling system designed for reliabl...

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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

$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 Scientific Haake AC200-A10 Refrigerated/Heated Bath Circulator The Thermo Scientific Haake AC200-A10 Arctic Refrigerated/Heated Bath Circula...

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$3,800.00 - $3,800.00

$3,800.00

$3,800.00 - $3,800.00

$3,800.00

$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 Scientific Isotemp 3028H Heated Circulating Water Bath The Fisher Scientific Isotemp 3028H Heated Circulating Water Bath is a large-capacity...

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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

$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 Scientific Haake AC150-A25 Refrigerated/Heated Bath Circulator The Thermo Scientific Haake AC150-A25 Arctic Refrigerated/Heated Bath Circula...

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$4,100.00 - $4,100.00

$4,100.00

$4,100.00 - $4,100.00

$4,100.00

$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/Heated Circulator The PolyScience AD07R-20-A12E Refrigerated/Heated Circulator is a precision 7 L laboratory...

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$3,100.00 - $3,100.00

$3,100.00

$3,100.00 - $3,100.00

$3,100.00

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 Recirculating Chiller The PolyScience WhisperCool N0772036 Recirculating Chiller is a high-capacity laboratory coo...

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$2,950.00 - $2,950.00

$2,950.00

$2,950.00 - $2,950.00

$2,950.00

$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

$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

$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

$9,800.00 - $9,800.00

$9,800.00

$9,800.00 - $9,800.00

$9,800.00

Neslab ThermoFlex 10000

Thermo

Low stock

Thermo Neslab ThermoFlex 10000 Recirculating Chiller The Thermo Neslab ThermoFlex 10000 Recirculating Chiller is an easy-to-use, easy-to-maintain h...

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$9,800.00 - $9,800.00

$9,800.00

$9,800.00 - $9,800.00

$9,800.00

PolyScience 6000 Series Recirculating Chiller

$2,650.00 - $2,650.00

$2,650.00

$2,650.00 - $2,650.00

$2,650.00

Polyscience 6506T chiller

Polyscience

Low stock

PolyScience 6000 Series Recirculating Chiller The PolyScience 6000 Series Recirculating Chiller is expertly designed to manage process temperatures...

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$2,650.00 - $2,650.00

$2,650.00

$2,650.00 - $2,650.00

$2,650.00