Portable, self-contained processing equipment is available from a number of manufactuers. These devices perform all the steps of stone concentration: washing, screening and separation of stone. Additionally, they are easily moved and many have self-contained water tanks for use in dry areas. Designed for testing or small scale production, these machines are capable of processing 2 to 8 ubic yards of material an hour, depending on the unit and with fairly high recovery.One example of these devices is the Denver stone saver, manufactured by the Denver equipment Divison of joy manufacturing. Approximately 5 feet by 2.5 feet in area and 4 feet high, weighing 590 pounds, and the unit features a trommel. riffles, water pump and a water tank. An attached 2.5 horsepower motor provides power for all systems. The riffles are removable for easy cleaning and the unit can be disassembled for transportation.During processing, feed enters through the hoper where it is washed and broken up in the trommel. minus one –quarter-inch material passes through the screen into the sluice. The sluice, which is made of moled urethane, vibrates during processing. The vibrating action increases recovery of fine stone by preventing compaction of accumulated material. Heavy minerals collect in the riffles while waste is discharge out the end. No data is available on the performance, but properly operated, this machine should outperform a simple sluice.Fote machinery are renowned at home and abroad. We have a high quality, and quality service, wholeheartedly welcome new and old customers to come to consult the purchase of equipment to suit your needs, we will let you buy the rest assured in good mood.At the present, Fote Heavy Machinery has set up three state level machinery research institutes, and we also produce various kinds of lignite dryer manufacturer, clay drying machine and free service for assembling various kinds of production line. sawdust dryer for sale:...