In the area of opencast mining technology, FAM offers an impressive selection of various machines and systems, such as bucket wheel reclaimers for the extraction of mineral resources like lignite, hard coal, overburden, marl, etc. Opencast mining is a mining technique of extracting minerals from the near-surface layer of the earth, these raw materials can be then used for further processing, for example, in the production of metals or building materials. Our product portfolio ranges from mining equipment (e.g., excavators) to crushers, belt conveyors and subsequent stacking technology.

Dexter Sand and Gravel is part of Delta Companies, a subsidiary of Colas USA. Delta owned another sand and gravel operation near the current Dexter, Mo., site that was running out of reserves. So in 2009, Area Manager Mike Martin and Delta Mining Engineer Scott Jinks started looking for a new site close to the old operation. They found it in Dexter, just two miles south of the old site. The company broke ground at the Dexter site in February 2012. By April, crews were pouring concrete for the foundations, and construction was underway in May. The site was producing sand by the end of July. Problem “This site is a great sand deposit with a small amount of gravel that is easily separated,” Martin said. “The challenge with this deposit is that it contains trace amounts of lignite.” Martin said that lignite, a material similar to soft coal, causes problems with concrete sand because it is lighter than the sand and essentially pops out as the concrete sets, causing voids in the finished concrete. Martin and Jinks were concerned with the quality issues caused by lignite and looked at viable options from several aggregate processing equipment manufacturers. Ultimately, they decided to work with McLanahan Corporation, which was represented in Missouri by Mike McCarron, Sales Manager for Continental Equipment. The team came together to design the plant and make sure the equipment could separate the lignite and make the desired products.