Selecting Cone Crusher Liners

Are you using the optimum cone liners for your application? “It’s very important to choose the right liner for the feed size especially, and for the desired specifications and processing parameters,” said Curt Theisen, crushing technical support engineer for Superior Industries, whose rockface-to-loadout solutions team collaborates with producers to fine-tune processing circuits. Whether specifying a new crushing circuit or tweaking…

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Great Lakes Limestone Shipments Trending Down

Shipments of limestone on the Great Lakes totaled 2.9 million tons in May, a decrease of 25.5% compared to a year ago. May’s loadings were also below the month’s five-year average by 24.5%. Loadings from U.S. quarries totaled 2.2 million tons, a decrease of 27.1% compared to 2022.  Shipments from Canadian quarries totaled 685,331 tons, a decrease of 19.9%. Year-to-date…

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Sinkhole Controversy

May 15, 2023 – In Knoxville, Iowa, Marion County officials and residents claim that a sinkhole may be the result of a Bruening Rock Products limestone operation, according to a final site investigation report by the Iowa Department of Agriculture and Land Stewardship (IDALS). The sinkhole is located in the east right of way of 135th Place, just south of…

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The Aggregates Producer Price Index

Aggregates Prices Rise In The United States By 1.5% In The First Quarter Of 2023. By Barry Hudson This is the fifth in a series of articles on pricing. -Ed. The 1.5% rise in the average price of aggregates in the first quarter of 2023 comes after a higher price rise (4.7% in the fourth quarter of 2022). The price…

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Graymont Celebrates 75th Anniversary

Graymont is celebrating its 75th anniversary in 2023. Founded in 1948, and headquartered in Richmond, B.C., Canada, the company has grown to become a major player worldwide, with operations in Canada, the United States, New Zealand, Australia, Malaysia, and the Philippines, as well as in Mexico, Honduras, Colombia, Peru, Argentina, and Chile through its 20-year partnership with Grupo Calidra.

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