The American-made Continuous Flow Filterless Centrifuge Extractor is effective for recovery of mineral filler fines from bitumen-laden nonflammable solvents from asphalt mix extraction tests. Analysis is simplified and accuracy is improved by eliminating the filter. Solvent suspension is fed through a top funnel into a special aluminum beaker (included) rotating at 11,000rpm. Under high centrifugal force, the liquid moves up the beaker wall and out through the overflow tubing while solids remain for easy removal. Continuous feeding is possible until the solids-retaining capacity of the beaker is reached.
No.18 (1mm) and No.200 (75µm) sieves are included for fitting to the top of the inlet funnel if desired. A No.230 (63µm) sieve may be substituted for the No.200; please specify. When using the sieves, the extraction process can be run by pre-dissolving the mix sample with solvent, then pouring into the sieves.
Rotating spindle and electric motor of the centrifuge are enclosed in a sturdy cast aluminum case. Two aluminum beakers are included with each unit. The Filterless Centrifuge Aluminum Beaker volume is 562ml.
Overall Dimensions: 20x15x33in (508x380x840mm), WxDxH.
Electrical: 115V/60Hz/1Ph
Meets Test Methods:
AASHTO T164
AASHTO T170
ASTM D 1856