Centrifuge Extractor for Determination of Bitumen

The Centrifuge Extractor is used to establish the bitumen percentage in bituminous paving mixtures. It consists of a removable, precision machined, aluminum rotor bowl, mounted on a vertical shaft. A filter paper disc is pressed in between the rotor bowl and a cover plate by tightening a knurled nut.

The bowl assembly is placed within a housing mounted on a cast body. In the electrical operating model, the rotor bowl is coupled to a motor. The solvent may be added during test through a cup on the housing cover.

The Centrifuge Extractor is electrically operated with an integral dimmerstat for speed variation from 0 rpm to 3600 rpm. Each unit is provided with a set of 25 filter paper discs.

Optional Accessories

  • TO-56302 Filter paper disc (set of 25) for TO-563-2
  • TO-56301 Filter paper disc (set of 25) for TO-563-1

Applicable Standards

  • ASTM D 2172, AASHTO T-58, T-164, EN 12697-1

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