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Siemens to handle maintenance of mill drives and power systems for Minera Peñasquito

Wednesday, June 9th, 2010

Minera Peñasquito S.A. de C.V., a mining company located in Zacatecas, Mexico, has assigned Siemens to service the gearless drive systems of two ore mills, initially for a period of one year. The order, which also involves maintenance of the associated power systems, will help Minera Peñasquito to increase the availability and reliability of its mills and to minimize downtimes.
Minera Peñasquito operates two 36 foot semi-autogenous grinding (SAG) mills to grind the ore, each with a power rating of 19.3 megawatts and fitted with Siemens gearless drive systems. Siemens is handling all the maintenance work for the drive systems and the associated power systems, including the primary high-voltage supply and the complete medium and low-voltage distribution. This involves preventive and condition-based maintenance, repairs and spare parts management. Remote diagnostic and maintenance tools make monitoring the plant easier. A stand-by service ensures that essential maintenance work is performed quickly. The maintenance contract is in the form of a performance-based agreement with corresponding payment arrangements. To this end, key performance indicators (KPI) have been defined for important operating parameters, such as availability.
Minera Peñasquito is a subsidiary of Canadian Goldcorp Inc., Vancouver. The mine, located in the Mexican State of Zacatecas, was opened up in recent years after exploratory drilling had found large quantities of gold and silver ore. The mine is expected to produce some 500,000 ounces of gold, 30 million ounces of silver and 180,000 tonnes of zinc a year for some twenty years.
(Ref 1307)

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