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Circulation chillers for reliable continuous operation in the lab and in research from -10 up to 40 °C

The LAUDA Microcool product line has been designed as a circulation chiller line with four compact models and cooling capacities from 0.25 to 1.2 kW. The user interface with large LED display and the membrane keyboard make the devices easy to use. An RS-232 interface and alarm contact are integrated as standard.

What is unusual in this price category of circulation chillers is the high-quality block pump with magnetic coupling. The magnetic coupling of pump and electric motor exclude sealing problems on the pump shaft. LAUDA Microcool circulation chillers are used wherever heat needs to be dissipated reliable and fast, e. g. in laboratories for rotary evaporators, distillation systems or analytical devices.

Application examples

  • Cooling of rotary evaporators
  • Cooling of distillation systems
  • Supply of cooling traps
  • Cooling of analytical devices

Download a PDF of our Microcool brochure:

LAUDA Microcool Brochure

Working Temp Min.

Working temperature min.


Working Temp Max.

Working temperature max.


Temp Stability

Temperature stability

0.5 ±K

Fast detection of the filling level thanks to the illuminated sight glass

Standard RS-232 interface and alarm contact


Four device types in three housing sizes – clear device portfolio for simple selection


Cooling capacities from 250 W up to 1200 W – covers the majority of basic lab uses


Simple and intuitive user interface with large LED display and membrane keyboard


Autostart timer and auto-shutdown function – timer-based activation and deactivation of the circulation chillers


Illuminated window for checking heat transfer liquid level – quick optical detection of the filling level


Block pump with magnetic coupling of pump and electric motor – Prevents sealing problems at the pump shaft


Integrated adjustable bypass and pressure gauge at MC 600, MC 1200 and MC 1200 W – Integrated pump pressure adjustment for connected delicate glassware or high pressure for max. flow rate


Integrated overflow connection – Controlled filling of the devices


RS-232 interface and alarm contact standard – System integration into processes without additional costs


Compact design and low space requirements – Saves valuable laboratory space


Integrated filling funnel on top of the device – Simple and safe filling


Easily removable front grid – easy-to-clean condenser

Microcool Circulation chiller with cooling capacity of 250 Watt

The compact design MC 250 model makes it ideal for being positioned on the benchtop. The circulation chiller is equipped with a magnetic coupling pump. This supplies a pump pressure of 0.35 bar and a maximum pump flow of
16 L/min.

Microcool Circulation chillers with cooling capacities of
600 and 1200 Watt

The 600 and 1200 Watt cooling capacity models are floor standing instruments designed to fit underneath the lab bench. They are equipped with a pressure gauge to display the pressure and casters which can be controlled and locked. Pump pressure can be controlled via the integrated bypass. At 1200 Watt, the most powerful device is also available in a watercooled version as the MC 1200 W.

Microcool Circulation Chillers

Select up to 3 products to compare:
Compare Products
Technical features MC 250 MC 350 MC 600 MC 1200 MC 1200 W
Select to compare:
Working temperature min. °C -10 -10 -10 -10 -10
Working temperature max. °C 40 40 40 40 40
Filling Volume min. L 2 4 4 7 7
Interface(s) RS-232 RS-232 RS-232 RS-232 RS-232
Temperature stability ±K 0.5 0.5 0.5 0.5 0.5
Pump pressure max. bar 0.4 0.4 1.3 1.3 1.3
Pump flow max. L/min 16 16 35 35 35
Cat. No. 115 V; 60 Hz L001066 L001067 L001068 L001069 L001070

EPDM tubing

Cat. No. Description di (mm) de (mm) Temperature range °C Pressure range max. bar
RKJ 111 Polymer tubing 9 11 10…120 1
RKJ 112 Polymer tubing 12 14 10…120 1
LZS 021 Insulated 12 21 -35…90
RKJ 031 Reinforced fibres 13 (1/2″) 19 -40…100 20
RKJ 032 Reinforced fibres 19 (3/4″) 27 -40…100 20
RKJ 009 Tube insulation 23 33 -50…105
RKJ 013 Tube insulation 29 39.5 -50…105

Adapter G 3/4"

Cat. No. Designation Description
LWZ 016 Nipple 3/4″ Screw cap, 1/2″ nipple
LWZ 040 Nipple 3/4″ Screw cap, 10 mm nipple

Stainless steel hose clamps
To secure hoses

Cat. No. Designation
EZS 012 Hose clamp for external diameter 10-16 mm, 1/2″
EZS 013 Hose clamp for external diameter 12-22 mm, 1/2″
EZS 015 Hose clamp for external diameter 20-32 mm, 3/4″

Heat Transfer Liquids

Cat. No. Designation Temperature range °C
LZB 120 Aqua 90, 5 L 5…90
LZB 220 Aqua 90, 10 L 5…90
LZB 320 Aqua 90, 20 L 5…90
LZB 109 Kryo 30, 5 L -30…90
LZB 209 Kryo 30, 10 L -30…90
LZB 309 Kryo 30, 20 L -30…90