Dear Readers Even the most mature technologies can be optimized, as Dr. Franz Wolpers describes in his article “A new approach to steep-angle...



Trends in the Crushing of Mineral Ores Mining Industry

Ore crushing processes have not changed very much in recent years. Never­theless; there have been significant modifications to the machine technology and to the systems. In this article, the most important topics are discussed and the current trends are presented. ...



A new approach to steep-angle conveying in quarries and smaller open-pit mines with thyssenkrupp’s Skip Way System Energy-balanced

Balanced-skip haulage systems are one of the mining industry’s most mature technologies. Now thyssenkrupp offers the advantages of rope running incline skips to open pits and quarries where haul truck operating costs are reducing profitability. The capital and operating economics of that system are very compelling, with dramatic re­ductions in CO2 emissions. ...




IFAT again fully booked

The ongoing high level of demand from companies wishing to exhibit at IFAT 2016 is impressive confirmation of the high status of the sector’s No. 1...



Mosaics Mix for Wear Protection

Wear is an everyday problem even in gravel pits, and although the respective material selection cannot prevent wear from arising, it helps to minimize it. The problem of a quarry in the Harz Mountains was the insufficient material transport in a vibration chute installed under a jaw crusher. ...


Full Screening Power at the Arctic Circle in Norway

Kiruna, the northernmost city of Sweden, is home to an iron ore mine of the same name, which processes and stores pellets. These iron ore pellets are transported from ­Sweden to Norway for shipping. In 1902, a train line was built all the way to Narvik for this purpose. ...


Bell B25E at Knüllwald open mine

Since August 2015, a Bell B25E has been operating as a versatile production machine in the production chain of Knüllwalder Tagebau GmbH, an open-cast mine in North Hesse. ...


High performing cone crusher revolutionizes production in the UAE

National Quarries LLC was founded in Siji, Fujairah in the United Arab Emirates in 2002. The company is today considered to be one of the leading aggregate suppliers in UAE with approximately 150 employees, and an annual production of 3.5-4 million t of high quality aggregate which is produced in a variety of sizes. ...


Valuable by-product

In the Upper Palatinate town of Lauterhofen, Hermann Trollius GmbH have been processing limestone and dolomite for three generations. Aside from traditional marketing, the company is now taking unconventional approaches. In order to conserve resources efficiently, Trollius is now for the first time making use of the leftovers of washing crushed dolomite. ...