Rock Products

OCT 2014

Rock Products is the aggregates industry's leading source for market analysis and technology solutions, delivering critical content focusing on aggregates-processing equipment; operational efficiencies; management best practices; comprehensive market

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Page 38 of 67 ROCK products • OCTOBER 2014 37 EQUIPMENT & TECHNOLOGY MATERIAL HANDLING & CONVEYING Foreman Blake Krainyk said that his operation is always keen on efficiency. "We are getting a lot more life out of these new pulleys, with our oldest unit being more than four years old. Also, we chose mine‐duty units as we found them to be really beefy. We've cut our downtime as we don't have any mate‐ rial buildup. These pulleys stay clean, they're quiet, and they last longer," he said. "But most of all, we wanted to protect our belts. The flat bar wing pulleys have sharp edges on the cor‐ ners, while the Chevron pulleys are round on the corners. They won't puncture a belt or catch on a belt splice," said Krainyk. Felton adds that when a conveyor belt stretches around a traditional wing pulley, it stretches over each wing bar. "That leads to accelerated wear and tear on fasteners and splices, as well as an increased potential for mistrack‐ ing," he said. When material wedges or builds between a pulleys wings it can cause those wings to fold or bend. The resulting shape greatly reduces the pul- leys effectiveness and can wreak havoc on other components.

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