limestone
One tough crush: Sergeant Stone’s journey
John Powell knew a challenge loomed when he first encountered the material Sergeant Stone planned to crush at a startup site in Corning, Ohio. The material, which Powell perceived to be limestone, was as hard as any he had… Keep Reading
NALC to invest $5 million in second limestone quarry
NALC, a limestone and industrial minerals company, plans to invest more than $5 million to establish a second limestone quarry and fine-grind facility. Activities at the 181-acre site, located in Cloverdale, Ind., will include the extraction and processing of calcium… Keep Reading
Michigan company to buy land for mining operation
The director of Michigan’s Department of Natural Resources (DNR) announced he agreed to sell $4.5 million of land to Graymont Inc. for the development of a limestone mining operation in the eastern Upper Peninsula, reports The Herald. Graymont wants to… Keep Reading
NSSGA sponsors tour of Bluegrass Materials’ Texas Quarry
About two busloads of people visited the Bluegrass Materials Texas Quarry in Cockeysville, Md., on Monday, March 16 for a tour sponsored by the National Stone, Sand & Gravel Association (NSSGA). The Texas Quarry sits on the Limestone Valley, abundant… Keep Reading
Equipment mix
Improved market conditions create a need for new equipment at CalPortland’s Colton, Calif., operation. As one of the largest and oldest producers in the western United States, CalPortland Co. has irrevocably woven itself into American history with its rich, storied… Keep Reading
Spill no more
Limestone producer reduces costs, improves safety with innovative belt cleaner design. A Midwestern limestone supplier is reducing costs and improving safety by using a series of conveyor belt cleaners to help eliminate carryback and the problems it causes. North American… Keep Reading
IRock: TS-409
The TS-409 open-style feeder track screening plant is one in a line of five IRock models the company has designed for small to midsized producers looking for a more economical, compact plant. The TS-409 can accommodate topsoil, mulch, sand and… Keep Reading
Tealinc, Ltd.
Tealinc, Ltd. specializes in providing economical rail transportation solutions to its customers. When moving volume by rail is your objective, utilizing the right rail equipment is essential. The steel body and low tare weight of Tealinc's 2,300-cu.-ft., Ortner-built railcars makes… Keep Reading
McLanahan Corp.: Direct Drive Crusher
McLanahan Direct Drive Crusher (DDC) twin shaft sizers offer capacities up to 6,000 tph, with less support structure requirements and lower headroom than other crushers, the company says. Available in mechanical or hydraulic drive, power requirements are between 0.25/ton and… Keep Reading
