Abstract: An anti-spin system adapted for use on a rock crusher having stationary frame, a crushing head, a crushing head pivot point, a shaft, bearings, a crushing chamber, crushing chamber liners and working fluid. The preferred anti-spin system includes a flow source which is adapted to provide working fluid flow, a working fluid source which is adapted to supply working fluid, a control valve which is in fluid communication with the working fluid source and being adapted to allow the working fluid to flow to the flow source, and a torque transmittal assembly which is adapted to connect the crushing head and the flow source and transmit torque from the crushing head to the stationary frame. The preferred anti-spin system is adapted to control rotation of the crushing head. A method comprising providing such an anti-spin system and controlling the rotation of the crushing head.

Abstract: A crusher adapted to crush feed materials comprising a main frame, a secondary frame disposed adjacent to the main frame, a crushing chamber adapted to receive feed materials, and a tramp iron relief system comprising a cylinder. The tramp iron relief system is adapted to allow a portion of the secondary frame to move away from the main frame. The cylinder is disposed substantially adjacent to the secondary frame. A method for installing a cylinder on a crusher and a method for removing a cylinder from a crusher wherein a lifting device remains attached to the cylinder continuously during each operation.

Abstract: A conveyor assembly adapted to convey material comprising an offsetting conveyor having an offsetting conveyor tail end, an offsetting conveyor swing end, and an offsetting conveyor belt and being adapted to move between an offsetting conveyor centered position an offsetting conveyor angled position, and an offsetting conveyor offset position. The preferred conveyor assembly also comprises an offsetting conveyor swing actuator that is adapted to move the offsetting conveyor between the offsetting conveyor centered position and the offsetting conveyor angled position. The preferred conveyor assembly further comprises a chute having a chute feed end and a chute discharge end and being adapted to move between a chute centered position and a chute angled position. The preferred conveyor assembly still further comprises a chute actuator that is adapted to move the chute between the chute centered position and the chute angled position. A method for moving an offsetting conveyor.

Abstract: An anti-spin system adapted for use on a rock crusher having stationary frame, a crushing head, a crushing head pivot point, a shaft, bearings, a crushing chamber, crushing chamber liners and working fluid The preferred anti-spin system comprises a flow source which is adapted to provide working fluid How, a working fluid source which is adapted to supply working fluid, a control valve which is in fluid communication with the working fluid source and being adapted to allow the working fluid to flow to the flow source, and a torque transmittal assembly which is adapted to connect the crushing head and the flow source and transmit torque from the crushing head to the stationary frame. The preferred anti-spin system is adapted to control rotation of the crushing head. A method comprising providing such an anti-spin system and controlling the rotation of the crushing head.

Abstract: A conveyor assembly adapted to convey material comprising an offsetting conveyor having an offsetting conveyor tail end, an offsetting conveyor swing end, and an offsetting conveyor belt and being adapted to move between an offsetting conveyor centered position an offsetting conveyor angled position, and an offsetting conveyor offset position. The preferred conveyor assembly also comprises an offsetting conveyor swing actuator that is adapted to move the offsetting conveyor between the offsetting conveyor centered position and the offsetting conveyor angled position. The preferred conveyor assembly further comprises a chute having a chute feed end and a chute discharge end and being adapted to move between a chute centered position and a chute angled position. The preferred conveyor assembly still further comprises a chute actuator that is adapted to move the chute between the chute centered position and the chute angled position. A method for moving an offsetting conveyor.

Abstract: A crusher adapted to crush feed materials comprising a main frame, a secondary frame disposed adjacent to the main frame, a crushing chamber adapted to receive feed materials, and a tramp iron relief system comprising a cylinder. The tramp iron relief system is adapted to allow a portion of the secondary frame to move away from the main frame. The cylinder is disposed substantially adjacent to the secondary frame. A method for installing a cylinder on a crusher and a method for removing a cylinder from a crusher wherein a lifting device remains attached to the cylinder continuously during each operation.