Heraeus Thermo & Memmert vacuümstoven met plaatverwarming

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Memmert vacuum drying oven VO the gentle giant in the laboratory

With short warming up times, high-precision temperature control and turbo-drying, the vacuum oven VO shows off all its strength – at the same time it can handle heat-sensitive or oxygen-sensitive substances and materials such as cosmetics, food, clocks, books or PCBs and other electronic components with unparalleled gentleness when drying. The direct contact between chamber load and the heatable and removable thermal shelves guarantees in all vacuum oven VO models a quick and even temperature control without loss of heat. Because of the direct contact between heating and chamber load, the heating and operating times in the vacuum drying oven VO are reduced by some 75 per cent compared to a conventional drying oven.

- Temperature range up to +200 °C
- 3 model sizes (29 to 101 litres volume)
- State-of-the-art control technology based on the P performance class for all models
- Anti-splinter; VDE-tested door construction for all models
- Pump control: Optimised rinsing procedures for pump membranes as needed, as well as signal output for pumps ON/OFF

 

Direct heating of thermoshelf in the vacuum oven

Because the thermal conductivity medium of air is not present in a vacuum, direct contact between heating and the chamber load is absolutely essential. In the Memmert vacuum drying oven VO, the direct heating is vulcanised onto the undersurface of the thermoshelf and protected by an aluminium cover sheet. The advantages for the user: excellent heat transfer, very fast heating-up time and precise controllability.

Optimum temperature distribution and high drying power due to the direct heating with thermoshelves in the vacuum

Each thermoshelf has its own Pt100 temperature sensor, which is also placed inside the centre of the thermoshelf, in close proximity to the chamber load. The special plug developed by Memmert allows the thermoshelf to be removed if necessary, and to be plugged in on different levels, depending on requirements. From the perspective of energy-saving, this is a significant advantage.

To achieve an optimum temperature distribution in the vacuum on all separately heated levels, the thermoshelves are manufactured from anodised and surface-enhanced aluminium as standard. For applications with highly-corrosive materials, we still recommend that you choose stainless steel shelves, because of their resistance to chemicals. 

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