The Duff family has produced and supplied crushed limestone, sand and gravel to west central Ohio for almost three-quarters of a century.
As the multi-generational family enterprise approaches its 75th year in business, a new CDE wash plant capable of processing up to 300 tph of sand and aggregates was commissioned at the company’s sand and gravel site in Lewistown, Ohio.
Ross Duff, president of Duff Sand & Gravel and vice president of Duff Quarry, characterizes the plant as an investment in the future of the business – and in the future of the mineral production industry in Ohio.
“It’s about honoring the history and heritage of our business and continuing that good work, ensuring we’re equipped and resourced to meet future challenges head on, and that we extract and utilize every valuable grain from our deposits,” Duff says. “In short, it’s about longevity.”
Partnering up
Duff Quarry discovered CDE in 2020 at ConExpo-Con/Agg. The company left a lasting impression on the family enterprise.
“When we left that show, we left with an impression of CDE and its equipment that would stay with us for the next few years,” Duff says. “We knew it would be a major investment – one of the largest in the history of the company – but we knew just how impactful it could be.”
Three years passed before the two parties met again at ConExpo-Con/Agg in 2023.
“By then, we were ready to move forward with this project, and CDE was still the preferred supplier all those years later,” Duff says. “That second show just strengthened our resolve to bring this project to life with CDE by our side.”
Engineered for Duff Quarry
Ronan Duffy, CDE business development manager, says the solution engineered for Duff Quarry is born from proven solutions. The plant is designed specifically for the company’s Huntsville Quarry.
“Material gradings can vary from one day to the next, so any solution needs to be approached with real understanding of the customer, their needs and the material to be processed,” Duffy says. “A full site audit, including material testing in our lab, helped inform and develop the best possible solution for Duff Quarry as they begin washing material for the very first time. Equipment specification, site layout – it’s all considered in order to create an optimized site workflow that can help accelerate return on investment.”
The final solution includes CDE’s AggMax scrubbing and classification system, which combines pre-screening, washing, scrubbing, lightweight and organics removal, and sizing on a compact chassis to produce a range of washed and graded aggregates ready for market straight from the belt.
Alongside this, CDE’s M4500 modular sand-washing plant, which integrates feeding, screening, washing, and stockpiling, features customizable cut-point control and Infinity technology to deliver consistent, in-spec sand products.
“Seeing the first containers arrive on-site for the build, that was pretty neat,” Duff says.
Increased production
Processing up to 300 tph, the new CDE plant is helping Duff Quarry produce more material per year to better meet the demands of the local construction market through proven design, efficient processing and optimized operations.
