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Dense Abrasive Materials Olds elevators are ideal for elevating dense, abrasive materials like Sand, Alumina Oxide, Tungsten Ore and Steel Shot without experiencing excessive wear. The operating principle of the Olds elevator ensures that the maximum force of material wearing on the static screw surface is no greater than the weight of the material contained within a single pitch of the screw.For example: Sand has a bulk density of 100 lb./ cubic foot. 1 cubic inch of sand weighs 0.0578 lb. In an Olds elevator with a 6 inch screw the weight of sand, per square inch, on the screw surface is 6 x 0.0578 lb = 0.347 PSI. As the Olds elevator casing rotates the friction of the inner wall of the casing urges the particles to slide up the face of the screw at speeds below 3 miles per hour. Try to wear away a piece of steel with sandpaper when applying 0.347 PSI at a speed of 3 mph and you’ll see why Olds Elevator screws last for years even while conveying the most abrasive bulk materials. 
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Engineering and Support Free Video Taped Test Materials Handled Performance Features Standard Configurations Test Laboratory OLDS ELEVATOR™ LLC 12 B Park Ave. Hudson, NH 03051 Call 603.882.8899 Fax 603.882.8855 Email us today! OLDS ELEVATOR™ Advantages 1. Olds Elevator Innovative Material Elevation
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