Abstract: A tire splitting apparatus including a frame, a powered drive roll mounted on the frame for rotating a tire, a pressure roll for engaging the tire with the drive roll, and a knife for insertion into the casing while it is rotating for cutting it into halves. A guide is clampable for contact with both side walls of the tire to align and steady the tire so that the knife will cut repeatedly in the same track. A bead support carries substantially all of the weight of the tire during the splitting operation to allow repeated revolutions of the tire as necessary to complete the splitting process.