At Vale's Cauê mine, located in Itabira (MG), MRLX-2 lithium complex grease was used and the relubrication of the 21PE031906 sieve bags was carried out every fortnight. Today, relubrication is done every four months.
As a test, from June 23 to October 23, 2012, the Matrix EP-1 grease was applied >. Among the parameters measured in the test, the temperature (global level) and the trend in acceleration (bearing defect) were verified.
Benefits have been identified such as a reduction in the amount of lubricant used; lubricant inventory reduction; less waste disposal; less exposure of everyone involved in the process, consequently reducing work accidents and preserving health (ergonomics, dust inhalation, among others); increase in relubrication intervals and reduction of labor used for lubrication; increased service life of spare parts (longer sieve bag change interval) and increased mechanical availability of the equipment and increased reliability, since stoppages for both relubrication and repairs have been reduced.
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