Compact, portable, motorized sieve shaker with spring-loaded tierods that reproduce vertical and horizontal tapping action. Assures accurate and dependable test results. Shaking action is achieved with a specially designed mechanism. A steel housing with a 60 minute built-in timer (Option) encloses the mechanism; provides protection from motor, pulleys and belts, but easy access for maintenance. Full length hold-down bar is fully adjustable for many number for sieves and protects against release of sieves during shaking action. Easy front loading and unloading of sieves, on obstructions by belts, braces or pulleys. Capacity of 10 or less full height and 18 of less half height U.S.A standard 8” (203 mm.)dia. Sieves with pan and cover. Adaptor for 3”(76 mm.) and 5”(127 mm.) sieves is included 220V, 50Hz, 1ph.