Rolls for high temperature roller hearth furnaces

摘要

Roll designs for roller hearth furnaces operating at temperatures ranging from under 1200 DEG C. to substantially higher are disclosed. A rotary mounted main roll body may be provided with a plurality of spaced tires for contacting and transporting a charge carried by the roll. An internal coolant circulation system is provided within the main roll body. Insulation may be provided around the main roll body.