DYNEO DD Series—Immersion and Refrigerated Circulators for Demanding Applications

Julabo’s DYNEO DD series comprises an extensive variety of refrigerated circulators and immersion circulators for challenging applications in advanced laboratories. These units are built to deliver high cooling and heating capacities, as well as safe operation and ease of use. Regardless of their cooling and heating power, the new DYNEO units work without noise and save space in cramped labs.

DYNEO DD Series—Immersion and Refrigerated Circulators for Demanding Applications

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Easy to Use

The DYNEO series has been engineered to be user-friendly, with all safety and operating functions conveniently provided on the unit’s front area. An exclusive rotary knob offers users a new, very efficient way to manage the instruments.

Conveniently positioned on the front side of the circulator head, it offers direct access to the menu and the entire settings. This advanced yet direct operating concept makes it easier to rapidly access the most often used functions.

A mains power switch on the upper side of the circulator simultaneously turns the refrigeration machine and circulator head on or off. Users can even switch effortlessly between external and internal circulation directly from the main display.

The industrial display offered by DYNEO is bright and powerful, enabling it to be read from across the lab. A built-in drain tap that does not need extra tools enables quick draining of the temperature control liquid.

Similar to all instruments from Julabo, DYNEO does not have any side ventilation grids. Therefore, it can be positioned directly next to a wall, the application, or other instruments. This saves precious space. Convenient rollers or handles allow the units to be moved easily or arrange them in any other location. A redesigned bath cover for CORIO and DYNEO has been engineered to safeguard against accidental contact and prevent burns.

Powerful Cooling

DYNEO refrigerated circulators are robust units that are perfectly suited for application in materials testing, fundamental research, or in technical systems. They span a temperature range of −50 °C to 200 °C with a heating capacity of 2 kW. Pump capacity is 27 l/minute, at a pressure of 7 bar. The cooling machines work reliably and accurately even at higher ambient temperatures of up to 40 °C.

The refrigerated circulators include a shaped cooling coil that expands the bath volume for internal applications. DYNEO units even function to save energy, with many modes for the refrigeration machine, such as automatic-on, permanent-on, or off. Loss of energy is prevented by highly efficient insulation, which further improves energy efficiency.


DYNEO immersion circulators are provided with a stable and powerful bath clamp and can be fitted to any container with a volume of up to 50 L, providing them excellent flexibility. They are used for internal temperature applications and work in the temperature range of 20 °C to 200 °C. Julabo’s accessories range offers an easy-to-install pump kit for external temperature control.

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