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Hard Rock Miners Dictionary

Author: Jack De La Vergne

Mining Rule of Thumb

Mining Field: Drum Hoists
Area: Hoist Speed (Rule #221)

Assuming reasonable values for acceleration gives the following rule of thumb equations for the design speed of drum hoists, in which H is the hoisting distance (feet).
Design Speed (fpm) = 34 H½ , hoisting distance less than 1,500 feet
Design Speed (fpm) = 47 H½ , hoisting distance more than 1,500 feet

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