Solar Manufacturing stands out above our competition. Our vacuum heat treating and brazing furnaces are designed to be the most energy efficient, cost effective, highest performing and most technically advanced furnaces on the market. Furnace models range from compact laboratory size to mid-size horizontal production, to huge car-bottom vacuum furnaces and are designed for heat treat processes such as hardening, brazing, stress relieving, normalizing, annealing, tempering, and sintering. Our furnaces feature improved graphite insulation materials, curved graphite heating elements, tapered gas nozzles, high velocity gas quench systems, SolarVac® 3000, 4000, and 5000 interactive control systems, and ConserVac energy management systems. Rely on our world-class engineering, outstanding customer service and reliable aftermarket support when you need spare parts or service.