Wissota Sand and Gravel

Industry
Sand and Gravel

Location
Milwaukee, Wisconsin

Products
Chevron® Wing Pulley

Project Objectives
- Greater efficiency in a challenging economy
- No downtime or maintenance labor
- Eliminate strain on belting

Challenge
Consider the frequent task of dislodging material from standard wing pulleys. It’s necessary, yet annoying and time consuming – and ignoring the problem means that costly belt damage is likely. At Wissota Sand and Gravel, a two-man crew was dedicated to the task of dislodging material from standard wing pulleys up to three time during every shift.

Solution
Wissota installed the v-shaped pulleys in strategic locations; two in belts running from the primary crushers and one in each surge tunnel with fabricated special variable frequency drive belt feeders. These locations have up to 5-inch-minus rock and have been a source of frustration in the past. In the 18 months since installing Chevron wing pulleys, the company has yet to free wedged material.

Quote
“We run about a million tons per year through this plant,” said supervisor Daryl Schmidt. “I envision these pulleys lasting for at least 15 seasons in the surge tunnels where the feeders are running very slowly and possibly for 5 or more seasons within our primary crushing circuit.”