Lafarge Presque Isle

Case Study: Optimized Screening

The Lafarge Presque Isle quarry, located adjacent to Lake Huron in Michigan, is one of nearly 1,600 worldwide production sites under the Lafarge umbrella. As a leading materials producer in the U.S., offering everything from standard construction and asphalt stone to unique high calcium limestone (HCL), the Presque Isle quarry relies on the heart of its operation to ensure uptime remains high: a fleet of 14 Niagara F-Class vibrating screens, which operate on a 24-hours-a-day, five-days-a-week schedule.

To say the equipment has been crucial to the company’s success is certainly a strong statement — and one backed by solid numbers. In the last decade, Presque Isle has become the largest producer in Lafarge North America’s family, consistently averaging more than 2,400 tons per hour, and an average annual production of nearly 8 million tons per year.

Featuring advanced, double eccentric shaft technology, the F-Class vibrating screen produces a constant, positive stroke that handles material volume spikes without losing momentum. As the eccentric shaft turns, the screen body is forced to follow the shaft movement. While it travels upward, the counterbalance weights move in the opposite direction and create an equal force to that generated by the body. As a result, the forces cancel each other, allowing a dynamically balanced system that transmits virtually no vibrations into the structure, and enables optimum production and reduced CAPEX.

“The screening machines are exceptional, but a primary reason we wanted work with Haver & Boecker Niagara was the service aspect,” said Lafarge Presque Isle quarry manager.

One particular service Lafarge appreciates is Pulse Vibration Analysis. Pulse is designed to examine the health of any vibrating screen by detecting irregularities that could translate into diminished performance, decreased efficiency, increased operating costs and imminent breakdowns.

A diagnostic report complements the service, with professional recommendations to improve vibrating screen performance and reduce maintenance costs.

Interested in seeing what a Niagara F-Class vibrating screen can do for you?

Call +1-800-325-5993.