Cone crushers with differing main bearing styles therein being manufactured with interchangeable parts and with a common exterior configuration so that a roller bearing cone crusher could be replaced at a crushing site by a plain bearing cone crusher without the need for any modification to either the plain bearing crusher or the crushing site. Methods of manufacturing roller bearing cone crushers which have components therein which are interchangeable with components in a plain bearing cone crusher is also disclosed.

A gyratory crushing apparatus for frangible or friable material comprises: a bowl having a chamber for receiving the material and a discharge opening disposed at the base with a central axis and a gyratory axis extending at an angle to the central axis; a crushing head and a drive assembly. The discharge opening defines a throat with a circumferential wall and the crushing head is disposed within the discharge opening. The crushing head has a crushing face in spaced relation to the circumferential wall of the throat defining a nip between the circumferential wall and the crushing face. The drive assembly includes a transmission and a rotatable eccentric shaft for driving the crushing head within the bowl and about the gyratory axis in a notating motion. The bowl also comprises a feed section and a discharge section, each defined by a wall and spaced by a mid-section, wherein thickness of a wall defining the mid-section is greater than a thickness of the discharge section wall.

A gyratory crusher main shaft sleeve for friction fitting over an uppermost tapered end of a crusher main shaft includes an elongate axial wall extending from an upper end to a lower end and having external and internal facing surfaces aligned transverse so as to taper inwardly towards a central axis. The tapering is defined by a sleeve tapering angle formed between the internal facing surface and an imaginary axis parallel to the central axis. The internal surface of the sleeve has a section in the axial direction with an upper end and a lower end. The sleeve section, from the upper end to the lower end, has a section tapering angle formed between the internal surface and the imaginary axis. The section tapering angle is different from the sleeve angle defining the tapering of the sleeve from the sleeve upper end to the section upper end.

A locking bolt assembly (1) for securing a mantle (40) to a head assembly (60) of a crushing device comprising: a locking bolt (10) having a head portion (10a) and a thread portion (10b); a re-useable thrust plate (30) disposed between the head portion (10a) and a top surface portion (42) of the mantle (40); one or more fasteners (20) for connecting the locking bolt (10) to the re-useable thrust plate (30); and one or more permanent jacking screws (34) for forcing the locking bolt (10) up and the thrust plate (30) down onto the top surface portion (42) of the mantle (40) so that the mantle (40) is secured on the head assembly (60). Also provided is a method for securing a mantle (40) to a head assembly (60) of a crushing device using the locking bolt assembly (1).

A cone crusher is described including: a stationary main shaft; and a crushing head; wherein the ratio of the diameter of the main shaft to the diameter of the head is greater than 0.3.

A cone crusher is described including: a stationary main shaft; and a crushing head; wherein the ratio of the diameter of the main shaft to the diameter of the head is greater than 0.3.

A method for operating an aggregate material processing plant according to two alternative modes of operation. In a first operating mode, unprocessed aggregate material is deposited onto a crusher feed conveyor and then fed to a crusher. The crusher produces crushed aggregate material, which is conveyed by a collection conveyor to a vibratory screen assembly at a first speed. The vibratory screen assembly sizes aggregate material deposited onto an upper screen deck thereof. Unscreened aggregate material is conveyed by a transfer conveyor to the crusher feed conveyor. In a second operating mode, unprocessed aggregate material is deposited onto the vibratory screen assembly, which sizes the aggregate material. The transfer conveyor conveys unscreened aggregate material to the crusher feed conveyor. The crusher feed conveyor feeds aggregate material to the crusher, which produces crushed aggregate material. The collection conveyor conveys crushed aggregate material to the vibratory screen assembly at a second speed.

A cone crusher and an adjustable moving cone assembly thereof are provided. The adjustable moving cone assembly includes a base, an eccentric bushing movably provided inside the base, a main shaft with a lower end movably provided inside the eccentric bushing, and a moving cone body fastened at an upper end of the main shaft. The eccentric bushing rotates to directly or indirectly drive the moving cone body to swing circumferentially. A lifting drive component is provided on the base. An upper end surface of the lifting drive component is provided with a support assembly. A lower end of the moving cone body is supported by rolling or sliding on the support assembly. The lifting drive component is configured to drive the moving cone body and the main shaft connected to the moving cone body to move up and down.

The disclosure relates to a concave (20) of a cone crusher and/or gyratory crusher for installation inside a crusher head (30), wherein the concave (20) has a central longitudinal axis (M) extending in the longitudinal direction of the concave, wherein the concave (20) has a feed (24.1) for material to be crushed on its top (O) and a crushed material discharge area (24.2) on its opposite bottom (U), and wherein the concave (20) has a base part (21) having an outer clamping surface (28). In order to reduce the amount of parts and installation work, provision is made according to the disclosure for the base part (21) to have a support section (25) having fastening lugs (26) projecting radially outwards, wherein the fastening lugs (26) are disposed spaced apart from one another in the circumferential direction of the support section (25) by means of spacer areas, wherein at least one clearance is provided in each of the spacer areas, which clearances permit a penetration in the direction of the central longitudinal axis (M) from the bottom (U) in the direction of the top (O), and wherein the radially outward extent of the clamping surface (28) is greater, at least sectionally, than the radially outward extent of the fastening lugs (26).

The disclosure relates to a concave (20) of a cone crusher and/or gyratory crusher for installation inside a crusher head (30), wherein the concave (20) has a central longitudinal axis (M) extending in the longitudinal direction of the concave, wherein the concave (20) has a feed (24.1) for material to be crushed on its top (O) and a crushed material discharge area (24.2) on its opposite bottom (U), and wherein the concave (20) has a base part (21) having an outer clamping surface (28). In order to reduce the amount of parts and installation work, provision is made according to the disclosure for the base part (21) to have a support section (25) having fastening lugs (26) projecting radially outwards, wherein the fastening lugs (26) are disposed spaced apart from one another in the circumferential direction of the support section (25) by means of spacer areas, wherein at least one clearance is provided in each of the spacer areas, which clearances permit a penetration in the direction of the central longitudinal axis (M) from the bottom (U) in the direction of the top (O), and wherein the radially outward extent of the clamping surface (28) is greater, at least sectionally, than the radially outward extent of the fastening lugs (26).