Crusher and control method for a crusher

A method for controlling a crusher, in which method the crusher comprises at least

• a frame,
• a crushing means with a cycle, as well as
• an actuator for moving the crushing means,
• and in which method, a value of at least first data is defined, which value is at least one of the following:
• the power input in the actuator,
• the crushing force,
• the particle distribution of the crushed material produced by the crusher, or
• the quantity of the crushed material produced by the crusher, and in which method an actual value of said data is measured,
• wherein the cycle frequency of the crushing means is substantially continuously adjusted in order to change the measured value towards the defined value.

A crusher, comprising at least

• a frame,
• a crushing means with a cycle, as well as
• an actuator for moving the crushing means,
• and which crusher comprises means for defining the value of at least first data, which value is at least one of the following:
• the power input in the actuator,
• the crushing force,
• the particle distribution of the crushed material produced by the crusher, or
• the quantity of the crushed material produced by the crusher
• and which crusher comprises means for measuring the actual value of said data, wherein the crusher comprises adjusting means for adjusting substantially continuously the cycle frequency of the movable crushing means in order to change the measured value towards the defined value.