Movable jaw of jaw crusher is made in form of plate with hole in upper part for its suspension on eccentric shaft and concave working surface formed by at least two flat sections equipped with discrete projections. The projections of the flat sections of the working surface of the plate are longitudinal with the same pitch of their arrangement within each of the flat sections, while the pitch of the projections is reduced in the direction of distance from the upper part of the plate.

The utility model relates to grinding equipment, in particular to jaw crushers, and can be used in the chemical, mining and building materials industries.

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