Abstract: A screw adjust cone crusher with a top tramp iron relief system where the bonnet can be vertically adjusted by rotating the threaded bonnet support within the threaded lower section. The tramp iron system is disposed entirely above the bonnet, thereby creating a small footprint screw adjust cone crusher with overhead tramp iron release system.

Abstract: A screw adjust cone crusher with a top tramp iron relief system where the bonnet can be vertically adjusted by rotating the threaded bonnet support within the threaded lower section. The tramp iron system is disposed entirely above the bonnet, thereby creating a small footprint screw adjust cone crusher with overhead tramp iron release system.

Abstract: A gyratory crusher with a tramp iron relief system having an annular manifold is disclosed. The gyratory crusher includes a frame, with the frame including a circumferential manifold ring having an internal hydraulic channel. A bonnet and a gyratory head are supported by the frame, with the gyratory head being spaced relative to the bonnet such that a crushing chamber is formed therebetween. The bonnet is adjustably mounted to the frame to permit relative vertical movement between the bonnet and the gyratory head. A hydraulic relief system is provided and includes at least one hydraulic cylinder operatively interconnecting the bonnet and the frame and being in flow communication with the hydraulic channel. The hydraulic relief system is arranged to allow uncrushable material to automatically pass through the crushing chamber.

Abstract: A gyratory crusher for crushing material having a frame mechanism including a lower frame portion; a crusher head having a bottom surface; a mounting mechanism for pivotally and gyrationally mounting the crusher head on the lower frame portion wherein the mounting mechanism includes a plurality of hydrostatic bearings configured to form a sliding engagement with the bottom surface of the crusher head to operatively support the crusher head; a drive train configured to operatively connect said mounting mechanism to an external power source; and a self-contained lubricating system for operatively lubricating the mounting mechanism and the drive train, wherein the self-contained lubricating system includes a flow divider configured to separately distribute lubricant to each hydrostatic bearing of the plurality of hydrostatic bearings wherein the flow divider is further configured to operatively provide lubricant to each sliding engagement of the plurality of hydrostatic bearings such that the crusher head is sli

Abstract: A gyratory crusher includes a frame, a bonnet, a gyratory crusher head, supported by the frame and being spaced relative to the bonnet such that a crushing chamber is formed therebetween, and a hydraulic channel formed integrally within the frame. First and second hydraulic cylinders are attached to the frame and support the bonnet on the frame, and the first and second hydraulic cylinders are connected to the hydraulic channel so as to be in hydraulic communication therewith. First and second hydraulic accumulators are supported by the frame and are in hydraulic communication with the hydraulic channel and the hydraulic cylinders. The hydraulic accumulators and the hydraulic channel are arranged to allow uncrushable material to automatically pass through the crushing chamber.

Abstract: A gyratory crusher having a frame with a lower frame portion, a crusher head, a mounting mechanism for pivotally and gyrationally mounting the crusher head on the lower frame portion such that the crusher head operably gyrates between a closed side setting and a corresponding open side setting, a seal mechanism for operably protecting the mounting mechanism. The seal mechanism includes a flexible member having an outer edge, sealingly connected to the crusher head, and an inner edge, sealingly connected to the lower frame portion by an outer bearing race secured to the inner edge, an inner bearing race secured to the lower frame portion, and bearing balls captured between the outer and inner bearing races. The flexible member may have a single wall structure with a corrugation-like configuration, or a double wall structure with an inflatable bladder therebetween.

Abstract: A gyratory crusher includes a flexible dust seal having an outer edge attached to a cone head of the crusher and to an outer of a ball-bearing seal, an inner race of which is attached to a mounting arrangement for rotationally mounting an eccentric member about a crusher axis with a pair of taper bearings and for rotationally mounting the cone head about a cone head axis offset from the crusher axis. The cone head is also mounted on a plurality of hydrostatic bearings. A mantel of the crusher is attached to the cone head by a removable cap nut and mantel stud. The crusher includes a self-contained lubricating system and a hydraulic tramp iron relief system with connections contained internally within structure of a lower frame portion of the crusher. The crusher includes a drive gear centered about the crusher axis and attached directly to the eccentric member.

Abstract: A vertical shaft impact crusher has an vertically adjustable feed tube disposed within a throat between a feed hopper of the crusher and the crusher lid of the housing. The feed tube may be adjusted in predetermined discrete increments to within a predetermined distance above an impeller table of the crusher within the housing of the crusher and without removing the hopper of the crusher during such adjustment. The adjustment is achieved by rotating an adjustment ring disposed at an interface between a hopper portion and a lid portion of the throat between the hopper and the lid. The adjustment ring may be held between to adjacent throat flanges to rotate circumferentially about a vertical crusher axis. The feed tube is a two-piece tube which includes an upper, re-usable portion and a lower expendable portion. The feed tube is held within a carrier tube which includes circumferentially spaced adjustment steps.

Abstract: A rotor for a vertical shaft impact crusher features a unique protector for the trailing edge of each material exit portal of the crusher. The portal protector includes upper and lower "wings" between which is a channel. The wings and channel trail outwardly from the portal and along the periphery of the rotor to create a pair of trailing vortices which confine the exiting material to the periphery of the rotor in order to prevent the material from also spilling over the upper and lower edges of the portal and onto the top of the rotor, thus reducing wear. The peripheral wall of the rotor is protected by symmetrical shell segments having upper and lower lips. Each of the latter is engaged in turn by a symmetrical, segmented rim liner fashioned so that a shell segment can be replaced or moved to even-out wear simply by removing one of its associated segmented rim liners.

Abstract: A remote operable cone crusher employing all-hydraulic adjust and clamping systems features a hydraulic "intensifier" for the clamp cylinders and an auxiliary pressure maintaining circuit for the adjust cylinders in order to overcome "creep" under load.