Metso Minerals, Inc.

Metso Minerals (tampere) Oy

Ilpo Nieminen

Kari Kuvaja

Juhamatti Heikkilä

Harri Lehtonen

Ari Posti

Jarmo Eloranta

Juha Patosalmi

A crusher and a method for controlling a crusher having a first crushing member and a second crushing member defining a crusher setting of a crushing cavity into which material to be crushed is being fed. The method having the steps of: measuring continuously instantaneous load on the crusher; recording instantaneous load peaks exceeding a predetermined target level for the load peaks; keeping track of the number of the load peaks exceeding the predetermined target level during a predetermined period of time; and controlling loading of the crusher on the basis of the number of the load peaks experienced by the crusher during the predetermined period of time.

Method for controlling a crusher and a crusher

Malfunctions of sliding bearings of cone crushers used in crushing stone are anticipated by providing sensors in connection to bearing parts, by means of which sensors it is possible to observe increases in friction forces. A beginning bearing damage can be detected by means of sensors at such an early stage, that extensive damage to bearings and to other parts of the crusher can be prevented.

Method for monitoring condition of bearings of a crusher, and a crusher

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Siivikkala, Finland

Ilpo Nieminen