Solar Delivers Custom Vacuum Furnace

Solar Manufacturing recently delivered and successfully started-up a uniquely designed vacuum furnace required by a major specialized coa...


Solar Manufacturing recently delivered and successfully started-up a uniquely designed vacuum furnace required by a major specialized coating services company.  Working with the customer on specific concerns of their cobalt and nickel based coating processes, Solar Manufacturing engineers provided custom trapping designs to collect and isolate contaminants resulting from their processes.

The furnace was a Solar Manufacturing Model HFL-5772-2EQ horizontal, front loading vacuum furnace with a work zone measuring 36”w x 36”h x 72”d with a hearth designed to accommodate up to a 3,500 pound workload. The entire hot zone utilizes a Flexshield hot face backed by five (5) layers of ½” thick graphite felt insulation all supported in a heavy-duty stainless steel ring structure. The heating elements are a thin, durable, curved graphite design allowing for a maximum operating temperature of 2,600 degrees F.

The specialized vacuum pumping system consists of a Busch Cobra Model NC0400 B Screw Type mechanical pump backed by a Stokes 615 Booster blower with in-line traps for binder and contaminant collection.  Also included is a bypass roughing line for initial pumping of the system to improve cycle times. A Varian Model HS-20 diffusion pump is also installed for high vacuum performance to the 10-5 torr range.

An external gas cooling system was included incorporating a 150 hp quench motor, a high speed radial fan and a high capacity heat exchanger capable of cooling workloads in argon gas at 2 bar positive pressure. A SolarVac 5,000 PC-based interactive control system was provided for control and monitoring of all furnace functions. The control system consisted of a Proface industrial operator interface with a 15” color touchscreen and Wonderware integrated operations software featuring recipe storage, alarm management, data acquisition and reporting functions and much more.

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Solar Manufacturing

Solar Manufacturing
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. With models ranging from small top-loading laboratory size furnaces to mid-size horizontal production furnaces to huge car-bottom vacuum furnaces, we design 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 interactive control systems, ConserVac energy management system and Magnetic Specialties´┐Ż Smart Power Supplies. Solar Manufacturing has also developed a name throughout the industry in Aftermarket Support. Our engineers can improve your existing hot zone by designing a replacement hot zone that is durable, energy efficient and will improve cooling and heating. We also offer vacuum furnace spare parts and service. Solar Manufacturing is a member of the Solar Atmospheres family of companies. Solar Atmospheres, Inc. is a progressive company and the largest independently owned commercial heat treater in the USA. With this affiliation and our extensive experience, Solar Manufacturing has gained a distinct advantage in the industry to assist you in choosing the right vacuum furnace or replacement hot zone for your needs. ...Read more Or visit