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Limestone Screening Machine

Screening Crushed Limestone at 650 Tons per Hour
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A US lime producer needed to replace 2 brute force vibratory screens at their limestone quarry due to constant failure of the drive bearings, lost production time, and maintenance costs. After discussions with plant engineering, a single unit with a natural frequency drive screen was selected to process crushed limestone at a rate of 650 tons per hour.

This double deck screening machine processed the -6″ crushed limestone with an upper grizzly deck making a 2.5″ separation and the lower screen deck making a secondary separation at 1/2″ – 3/4″. Shortly after installation of the new screening machine, the second old screen was deemed redundant and has been eliminated from operation. The natural frequency drive can use 75% less HP than brute force units. The unit has been in service since the fall of 2012 and has not stopped operation.

Double Deck Natural Frequency Screen processes Crushed Limestone front view two deck natural frequency screen for crushed limestone back view

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