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.