A gyratory crusher includes an eccentric having an inner slide bearing surface and an outer slide bearing surface, the inner slide bearing surface defining, together with an opposing slide bearing surface, an inner slide bearing. The outer slide bearing surface defines, together with another opposing slide bearing surface, an outer slide bearing. The eccentric is rotatably connected to a crusher frame so as to allow a rotation about an eccentric axis of rotation, which is fixed relative to the frame. The eccentric axis of rotation is defined by one of the inner and outer slide bearings. The inner slide bearing has a total height-to-diameter quotient (H1/D1) of less than 1.0.

A method for controlling crushing equipment, wherein the crushing equipment includes a crusher, a feeding arrangement for feeding material to the crusher, a secondary equipment arranged downstream from the crusher for sorting out oversized material leaving the crusher, and a recirculation loop for recirculating the oversized material fed to the crusher. The method includes the steps of stop feeding new material to the crushing equipment through said feeding equipment, recirculating the oversized material from the secondary equipment to the crusher and decreasing a crusher setting of the crusher.

A mobile cone plant with canted run-on jacks for limited vibration of the chassis without a need for clamping or extremely tight tolerances in telescopic jack parts.

A mobile cone plant with canted run-on jacks for limited vibration of the chassis without a need for clamping or extremely tight tolerances in telescopic jack parts.

A gyratory crusher spider wall shield for releasable mounting to a radially inward facing face of a spider positioned on top of a shell of a gyratory crusher includes a primary protection wall positionable over the inward face of the spider and a rear wall attachable to an outer annular fixating ring positionable axially intermediate a material input hopper and the spider.

A gyratory crusher spider wall shield for releasable mounting to a radially inward facing face of a spider positioned on top of a shell of a gyratory crusher includes a primary protection wall positionable over the inward face of the spider and a rear wall attachable to an outer annular fixating ring positionable axially intermediate a material input hopper and the spider.

A grinding apparatus includes a receptacle, a grinding element and a drive means. The receptacle has a receptacle inner wall defining a receptacle cavity. The receptacle inner wall is in the general form of a surface of a revolution extending about a central vertically extending receptacle axis. The receptacle is rotatable about the receptacle axis. The grinding element has a grinding element outer wall in the general form of a surface of revolution extending about a central vertically extending grinding element axis.

A grinding apparatus includes a receptacle, a grinding element and a drive means. The receptacle has a receptacle inner wall defining a receptacle cavity. The receptacle inner wall is in the general form of a surface of a revolution extending about a central vertically extending receptacle axis. The receptacle is rotatable about the receptacle axis. The grinding element has a grinding element outer wall in the general form of a surface of revolution extending about a central vertically extending grinding element axis.

A mantle clamp configuration designed to lock the mantle in place on a rock crusher includes a clamp plate assembly with a clamp plate with holes; a plurality of clamp bolts that are inserted through the holes; and optionally a dust cover with dust cover bolts. The configuration also may also include modified original equipment manufacturer (OEM) assembly including modified locking collar; new locking collar bolts to accept the clamp bolts; and burn ring modified to fit the overlying clamp plate.

A gyratory crusher shell has an annular wall extending around a longitudinal axis. A plurality of ears project radially outward from an annular rim of the topshell with each ear including a respective lug to sit within a corresponding recess at an annular rim of the topshell to rotatably lock the crushing shell at the topshell.