Abstract: The tire shredder includes a frame, a conveyor assembly depending from the frame defining a feed path for the tires and debris from an input end to a discharge end, a carriage supported with respect to the conveyor assembly to have a reciprocating linear travel across the linear feed path at the discharge end, and a plurality of rotary cutting elements mounted on the carriage with axes of rotation parallel to the travel of the carriage. By providing a plurality of rotary cutting elements tires coming in a wide variety of sizes can be handled.

Abstract: The tire shredder has a frame supporting two parallel, vertically spaced rails on which are mounted a wheeled carriage. A variable speed, bi-directional motor provides reciprocating movement of the wheeled carriage on the tracks. The wheeled carriage supports a cutting assembly which includes a drive motor, a shaft and a plurality of circular saws mounted on the shaft for rotation with the shaft. The shaft is mounted with its axis of rotation parallel to the direction of movement of the carriage. Tires are fed to the circular saws by a conveyer system. A bottom conveyer carries the tires substantially parallel to the floor. A top conveyor, is positioned above the first conveyer, slanting downwardly toward the bottom conveyor from the opening for the tires to the discharge point adjacent the saws. Both conveyers are driven by a variable speed motor.