A Concentric Rotary Laboratory Screen for Wood Particle Classification

A low-cost, laboratory-size rotary screen for classification of wood flakes/wafers is described. The device consists of four concentric horizontal cylindrical screens, ranging in diameter from 28 inches to 67 inches. An initial comparison with a conventional inclined vibrating screen showed the laboratory rotary screen to be as effective and consistent as the vibrating screen. Greater separation of the larger flakes was achieved with the rotary screen. This device might be a low-cost alternative for those interested in effective size classification of longer flakes/wafers.

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