KHD signs License Agreement with Weir Minerals for HPGR Technology

Cologne, Germany, April 18, 2013 – For the past three years Weir has acted as KHD’s agent for the marketing of High Pressure Grinding Rolls (HPGRs) in the minerals sector, operating on a commission only basis. KHD is an originator of HPGR technology with 2011 and 2012 order intake relating to minerals HPGRs averaging €25m a year. This agreement has been replaced by an exclusive and perpetual license agreement, giving Weir direct control over the design, manufacture and distribution of HPGR equipment in minerals processing applications utilizing KHD’s technology, in return for royalty payments on equipment sales. Several KHD technical staff engaged in applying HPGRs in minerals processing will be offered employment with Weir.

About the comminution process and HPGR technology Comminution is the process through which solid materials are reduced in size through crushing, grinding and screening before being passed through further “mill circuit” processes where copper, iron ore and other minerals are refined into raw commodities. In minerals processing, different combinations of crushers and mills can be deployed in the comminution process circuit, dependent, for example, on ore characteristics such as rock size, hardness and moisture content, with the total market for comminution equipment and services estimated to exceed £3bn.

HPGR technology is of increasing importance in the mining industry as an energy efficient comminution solution. Originally developed for cement processing, HPGRs, often in combination with secondary cone crushers, are seeing increasing acceptance in the mining industry as a replacement for the conventional SAG mill, offering significant benefits in terms of consumption of energy and consumable parts – as well as superior crushing performance.

KHD Group

KHD is a global leader for providing equipment and services to cement producers with over 150 years of experience in the cement industry. Process engineering and project management are among the core competencies of the technology-focused group. KHD offers a wide spectrum of products and services for the cement industry and is a leader in environmentally friendly and energy-efficient products for the grinding and pyro processing sections of the plants. The holding company KHD Humboldt Wedag International AG, based in Cologne, Germany, coordinates its internationally operating subsidiaries. The group employs more than 750 employees worldwide, including customer service centers in growing markets like India, Russia and the Asia Pacific region. KHD Humboldt Wedag International AG (ISIN: DE0006578008, WKN: 657800) is listed on the Frankfurt stock exchange (General Standard). More information:


KHD Humboldt Wedag International AG
Michael Nielsen
Investor Relations

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