Cold Traps / Cryo Pumps

A so called cold trap is a vessel mounted to a vacuum chamber with the vessel’s volume being inside the chambers volume. It gets filled with liquid nitrogen from the outside through a funnel or a pumping mechanism can constantly flow liquid nitrogen through the vessel. The surface of the cold trap functions as an extremely effective cryo pump for any vapor condensing at a higher temperature than liquid nitrogen, higher than -196 °C. Therefore, cold traps are very useful and even considered mandatory when handling liquids in vacuum, but are surely not limited to these applications.

In order to achieve good vacuum conditions in the customer’s experimental chamber, despite the naturally high evaporation of a liquid jet, especially a flatjet, at least one liquid nitrogen cold trap is required. Furthermore, such cold trap is mandatory for protection of pumping equipment, like scroll and turbo pumps, against the liquid’s vapor.

We deliver a wide range of models as shown below, which we usually have available from stocks. Furthermore, we can get your design manufactured or develop and manufacture a design tailored to your application and vacuum chamber.

CT-CF100-250 Top
CT-CF100-250 Bottom
AMS_Coldtrap_Generic_crop