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Larger portable sand capacity units are available from 1 to 5 ton sand capacity. These units are designed to be mounted on a customer supplied truck or trailer. Fill the unit from an existing overhead sand supply such as a tower and drive to the point of use. Impco's smooth flow delivery system operates from the locomotive air compressor. Preconditioning of sand combined with bottom feed provides low presure delivery from unit to sand box. A deadman control system permits operator to start and stop flow of sand if control is released or hose is pinched, kinked or even cut.
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