Cold Boxes

Small table-top devices for cooling and freezing for the entire laboratory area, research and industry.

Product catalog

Cold Boxes (PDF)

B series: Cold boxes

The cold- and freezing box B 30-20 as well as the series B are desk-freezer units and can be placed directly at the workplace.

The type B 30-20 is stackable. Up to three units can be stacked on top of each other. The version B 30-20 (-20°C/30 liters) is equipped with a thermo pane window in the door that enables the observation of frozen materials. All casing parts are made from stainless steel. The cold box B 30 is fitted with a quiet, hermetically sealed cooling compressor. The intrinsically safe, aircooled refrigeration system is maintenance-free.

The cold boxes series B3 are small desktop devices for cooling and freezing and therefore suitable for the use in laboratories as well as in research and industry facilities. It is suitable for the use directly at the workplace, especially because of its compact and space saving design and a low noise cooling aggregate.


Type B 30-20:

  • The model B 30-20 is equipped with a digital two- point control with PT 100 sensortemperature display
  • Stainless steel housing
  • Blue protective ring around top and bottom to avoid risk of injury
  • Large window in the door
  • Cable gland (10 mm)

B 35 series:

  • B 35 - unit types are equipped with a control unit with membrane keypad and integrated, galvan. isolated, mains-independent alarm (visual and acoustic signal, alarm contact for connection to an external alarm signal / temperature recorder output 10mV/K for connection of a temperature recording system / RS485 interface
  • //logg variant with electronic programme controller, touch screen operation and internal data logger
  • Stainless steel housing
  • Foamed door with douple door sealing
  • Vacuum insulation - better insulation, therefore less power consumption
  • Ventilation grid on the left and right side - the box can be placed directly to a wall
  • Cable gland (10 mm)
  • Lockable door


  • Recirculation fan for even temperature distribution throughout the interior

Karg Industrietechnik: Competence
in materials testing

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