header product ovens


2_VOH_250 1_VOH_250 VOH_250 Oven

The MB-VOH-250 is MBRAUN's most versatile vacuum oven in the VOH series. As part of MBRAUN's standard main antechamber design, this particular oven features a larger heating zone compared to the MB-VOH-Mini allowing for the heating of larger and more unconventionally shaped material.

Furthermore the increased operating temperature of up to 250°C offers the possibility to quickly dry and cure a wide range of materials. In addition to having a larger heating zone and available vacuum bake mode at elevated temperatures, this oven is capable of heat treating materials and components under inert gas at ambient pressure levels.

Being the standard feature in the VOH product line the MB-VOH-250 serves two main distinct functions. The first function transfers material into and out of the inert environment and the second function allows for the heating of the material under a controlled vacuum and temperature condition.

The MB-VOH-250 has become the industry standard in oven technology and is being utilized in applications that include University research as well as in industrial manufacturing. The VOH oven series sets the standards when controlled heating under vacuum and/or inert conditions is required.

Please contact us for choosing the right oven type to meet your heating process needs.


  • Designed specifically to operate under vacuum conditions
  • Easy transfer of goods into and out of the glovebox
  • Available as both standalone and glovebox integrated versions
  • Maximum temperature of 250° C
  • Maximum vacuum level 5 x 10-2 mbar
  • All stainless steel construction
  • Inner and outer door open in vertical direction
  • Internal heating coil
  • CE compliant


  • Programmable evacuation/ operation cycles
  • Mechanical interlock
  • Heating under inert gas
  • Dry pump for evacuation
  • Quick cool-down
  • Automatic lifts for doors


Please note: Specification may vary depending on configuration.

Product Information

  • Operation: Vacuum heating
  • Oven body: stainless steel 1.4301 (SUS 304) with insulating jacket
  • Heating method: internal tubular heating coil (resistance heating)
  • Maximum temperature: 250°C
  • Temperature Accuracy: ± 1 °C
  • Vacuum level: 5 x 10-2 mbar
  • Control: Siemens S7-300
  • Tray: Stainless steel sliding tray (SUS 304)
  • Oven doors: Vacuum-tight doors for one hand operation

Valves and Sensors

  • Temperature sensor: PT100
  • Vacuum gauge: Pirani
  • Vacuum valves: Bellows-sealed valves
  • Refilling valves: Electro-valves

Electrical Connection

  • Voltage: 400 V / 3 Ph
  • Power consumption: 5 kW max.

Related Products


The MBRAUN MB-VacuumDryer represents the most economical solution for air-sensitive substances and thermally instable products that require drying under controlled conditions in a dust-free vacuum atmosphere.


The MB-VOH-Mini is the most compact design in MBRAUN's vacuum oven series. Due to its compact size the MB-VOH-Mini has a maximum temperature of 150°C and is the ideal choice for small devices that have to be heated or dried before being transferred into the glovebox.


The MBRAUN MB-VOH-600 is most powerful oven system in the VOH product line when it comes to maximum temperature. Featuring the same large heating zone as the MB-VOH-250, this oven can reach operating temperatures of up to 600°C and vacuum levels of down to 5 x 10-2 mbar.


MBRAUN MB-HT high temperature ovens are often utilized in the sealing of HID lamps. Designs include a double walled stainless steel consisting of the body and lids. Ovens can be offered glovebox integrated or as standalone configuration.


The MBRAUN Hotplate Stack (HPL Stack) System is based on resistively heated, stacked hot plate technology. It has been designed to provide a space saving, flexible and modular tool with high productivity, excellent process repeatability and minimum cost of ownership.

MB-HPL-200 / 400

The MBRAUN MB-HPL-200/400 Vacuum Hotplate has been designed to cure sensitive organic layers under defined process conditions. Application ranges from basic research up to sophisticated manufacturing processes.

contact us


MB-VOH-250 »