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The Dynamic Air Little Sandy portable locomotive sanding system is capable of delivering sand to locomotives at a rate of 3000 pounds per hour or more. The system is totally self-sufficient and includes a dense phase Full Line Concept pneumatic conveying system complete with an electric start powered air compressor, air surge tank, moisture separator and a programmable controller. Also included is a heavy-duty weatherproof enclosure with 20 feet of hose and aluminum fill wand.