Especialidades Termicas, S. A. de C. V. purchased a second tempering furnace with vacuum purging from Seco/Warwick Corp. (Meadville, Pa.) for its commercial heat treat operation in Mexico. The tempering furnace is a hot wall, front-loading, retort-tempering furnace with vacuum purging, internal circulation fan and turbo cooling system. The furnace has a 24 in. x 24 in. x 36 in. hot zone and 1,320-lb load capacity. Turbo cooling minimizes the cooling time to provide a shorter cycle and improve furnace utilization. Turbo cooling can cool a full load of 12 in. x 1 in. diameter rods from 1300 F (700 C) to 390 F (200 C) at a cooling rate of 32 F (18 C) per minute.