Vacuum is achieved through special seals between
the cover and edge of the pan. Light inspection window and
all necessary fittings are provided on the vacuum cover. A
vacuum pump is chosen according to the properties of the mixing
goods and required ultimate vacuum, (normally rotary vane
or liquid ring pumps). The impeller can be raised-lowered
while working under vacuum, in order to reach maximum dispersion
and deaeration efficiency.
Under vacuum mixer with a turning scraper. The Scraper is
very strong and is fitted with interchangeable blades, made
from the most suitable material, according to the properties
of the mixing components. The scraper in most cases are driven
hydraulically and push against the side walls of the pan.
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Single or double impeller
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