Abstract: A plastic granulator apparatus stationary cutting segment includes a segment rail having multiple arcuate spaced teeth. Each tooth of the plurality of arcuate spaced teeth has a tooth surface and is spaced to be complementary to a rotary cutter segments as a rotary cutter is rotated. The segment rail is adapted to be mounted to a granulator housing. The rail segment has a shoulder with a shoulder surface, the shoulder is adjacent to each of a set of arcuate spaced teeth. The shoulder has a shoulder surface height of between 0 and 10 mm, and a stepback distance of between 0 and 2 mm between the shoulder surface and the arcuate tooth surface. The shoulder and the arcuate tooth surface define an angle therebetween of 90° and 130°, and the shoulder surface defines an angle between 90° and 130°.

Abstract: A plastic granulator apparatus stationary cutting segment includes a segment rail having multiple arcuate spaced teeth. Each tooth of the plurality of arcuate spaced teeth has a tooth surface and is spaced to be complementary to a rotary cutter segments as a rotary cutter is rotated. The segment rail is adapted to be mounted to a granulator housing. The rail segment has a shoulder with a shoulder surface, the shoulder is adjacent to each of a set of arcuate spaced teeth. The shoulder has a shoulder surface height of between 0 and 10 mm, and a stepback distance of between 0 and 2 mm between the shoulder surface and the arcuate tooth surface. The shoulder and the arcuate tooth surface define an angle therebetween of 90° and 130°, and the shoulder surface defines an angle between 90° and 130°.

Abstract: A particle separator is provided that separates small particulate from large particulate from an intermixed material feed. The separator finds particular utility in the field of separation of thermoplastic regrind particulate from intermixed debris which constitutes a smaller particulate relative to the thermoplastic regrind. Embodiments of the separator use a rotary shaft for mounting an spiral blade fed by a material feeder bin that meters material into the separator. The spiral blade is configured so that the material moves along a peripheral mesh screen to separate any smaller particulate that passes through the mesh screen leaving the large particulate to traverse though the separator, while small particulate is sieved therefrom the surrounding mesh and into a separate collection stream.

Abstract: A particle separator is provided that separates small particulate from large particulate from an intermixed material feed. The separator finds particular utility in the field of separation of thermoplastic regrind particulate from intermixed debris which constitutes a smaller particulate relative to the thermoplastic regrind. Embodiments of the separator use a rotary shaft for mounting an spiral blade fed by a material feeder bin that meters material into the separator. The spiral blade is configured so that the material moves along a peripheral mesh screen to separate any smaller particulate that passes through the mesh screen leaving the large particulate to traverse though the separator, while small particulate is sieved therefrom the surrounding mesh and into a separate collection stream.

Abstract: A rotary particle separator for separating small particles from large particles is provided and includes an inclined rotary shaft having a first end and a second end. A particle bend is coupled to the elevated first end of the shaft. The particle bend has a bottom surface with a hole therethrough for gravity feed of material including the large particles and small particles from the bend along the shaft towards the second end. Annulae are spaced along the shaft with each of the annulae having a central aperture bounded by a ring that terminates in an annulae outer diameter. At least one paddle is interspersed between two adjacent annulae with at least one paddle positioned to rotate around the shaft. A screen mesh having a mesh size surrounds the annulae with a mesh size such that the small particles within the material are able to pass through the mesh and thereby leave larger particles preferentially segregated within the volume defined by the annulae spaced along the shaft.