The ENDECOTTS AIR SIZER is a precision analytical instrument designed for the separation of very fine particles, including materials that exhibit electrostatic properties.The A. S. is supplied with additional rear mounted electrical outlet and suction pipe sockets for easy connection of a vacuum extraction unit which collects the undersized (passed) sieved samples.
Because HEPA Filters are generally used to prevent fines from being introduced in to the environment, vacuum sievers are not recommended for applications requiring non destructive separation of fines.
Principle of Operation
A measured quantity of the sample to be screened is placed on the selected sieve and the polycarbonate lid is then placed on top. The powerful vacuum unit generates a negative pressure in the bowl below the sieve, which induces an airflow dislodging the sample above the sieve surface by means of a rotating nozzle located below the sieve creating a “blade” of air. The same airflow simultaneously draws the undersize air borne particles from the sample back through the sieve apertures. The undersize particles are deposited as defined above.
The Endecotts Air Sizer is unique in that it does not require special, 'airjet sieves' in order to work. Standard Endecotts certified sieves may be used. The Air Sizer operates with one sieve at a time.
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