Vertical shaft crushers and control systems therefor are disclosed. In some embodiments a rotor of the crusher is reversible and/or autogenous. In some embodiments a crushing chamber of the crusher includes at least one anvil and at least one rock shelf chamber.

The present disclosure relates to a vertical shaft impact crusher comprising a rotor having a rotor protection layer which consists of particles of objects to be crushed. The rotor includes at least: a rotor upper plate comprising a rotor upper plate hole, which is an inlet for the object for crushing which is inserted into the rotor; a rotor lower plate disposed to be separated from the lower portion of the rotor upper plate; a rotor upper plate; a rotor side wall disposed between the rotor upper plate and the rotor lower plate and coupled to the rotor upper plate and the rotor lower plate, the rotor side wall being disposed at a position spaced from the rotation center of the rotor; and a circular hole which is formed on the rotor side wall and is an outlet for the object for crushing accelerated by the rotor to come out of the rotor.

An abrasion resistant wear plate is mountable within a rotor or a vertical shaft impact crusher to protect the rotor from material fed into the rotor. The wear plate includes a main body that mounts and supports at least one abrasion resistant insert to define, in part, a contact face over which feed material is configured to flow.

Vertical shaft crushers and control systems therefor are disclosed. In some embodiments a rotor of the crusher is reversible and/or autogenous. In some embodiments a crushing chamber of the crusher includes at least one anvil and at least one rock shelf chamber.

A rotor for a comminution apparatus that is arranged to launch material to be comminuted towards a surface, such as an anvil or an autogenous layer of crushed material. The rotor includes a frame including an upper plate, a lower plate and wall elements extending between the upper plate and the lower plate. The rotor further includes an inlet opening in the upper plate and an outlet located between the upper plate and the lower plate. An uppermost surface of the frame and a lowermost surface of the frame have a greater hardness than the rest of the frame such that additional wear protection elements may be omitted at those uppermost and lowermost surfaces.

An abrasion resistant wear plate is mountable within a rotor or a vertical shaft impact crusher to protect the rotor from material fed into the rotor. The wear plate includes a main body that mounts and supports at least one abrasion resistant insert to define, in part, a contact face over which feed material is configured to flow.

The present disclosure relates to a vertical shaft impact crusher comprising a rotor having a rotor protection layer which consists of particles of objects to be crushed. The rotor includes at least: a rotor upper plate comprising a rotor upper plate hole, which is an inlet for the object for crushing which is inserted into the rotor; a rotor lower plate disposed to be separated from the lower portion of the rotor upper plate; a rotor upper plate; a rotor side wall disposed between the rotor upper plate and the rotor lower plate and coupled to the rotor upper plate and the rotor lower plate, the rotor side wall being disposed at a position spaced from the rotation center of the rotor; and a circular hole which is formed on the rotor side wall and is an outlet for the object for crushing accelerated by the rotor to come out of the rotor.