RT series trolley furnace is the national standard energy-saving heat treatment furnace, mainly used for large and medium-sized high chrome, high manganese steel casting, gray iron castings, nodular cast iron, roller, steel ball, hammerhead of the crusher, wear-resisting liners, pressure vessel, slewing bearing, large axial, mechanical parts and mold material for annealing and other heat treatment. Electric or gas can be used as heating source.