Discover Your Vacuum Furnace Solution!

Multi-Chamber Vacuum Furnace: true vacuum tight sealing inner door, uniform 360° heating, gas & oil quenching, efficient

As a vacuum furnace manufacturer, Surface Combustion pioneered the vacuum purged tempering process and has a wealth of data and applications to draw upon for your unique situation. We do it for our customers to have the confidence level that our technology will work every time. This innovative and versatile style of furnace is a first in industry.

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Discover the Best Atmosphere For Your Application

Review this useful book to discover the best atmosphere for your application. It is not just the furnace that makes the best result, but the recipe used to create that result. The generation, application, and proper control of the treating atmosphere is a critical component to your success. Please see more in our comprehensive guide.

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Surface® Combustion Celebrates Allcase® Furnace and 70 Years of Successful Heat Treating

Surface® Combustion, Inc., a pioneer in the heat treatment industry since 1915, is celebrating the Allcase® Batch Integral Quench Furnace and its 70 years of successful heat treating.  For 70 years, the Allcase batch integral quench furnace has been a trusted heat treating solution, meeting customer specified thermal processing and production requirements. Over 50% of heat treaters use the Allcase: 

  • Over 3,000 installed
  • Over 496,040 tons of steel processed annually 
  • Processes include: annealing, austenitizing, carbon restoration, carbonitriding, carburizing, ferritic nitrocarburizing (FNC), neutral hardening, normalizing, spheroidizing, stress relieving 
“We pioneered the Allcase in 1951 and since then, it has been a trusted source for heat treating processes around the world" said Ben Bernard, VP of Marketing at Surface Combustion. "We are excited to celebrate its success and look...

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Surface® Combustion Awarded Contract for Horizontal Ion Nitriding System for Watervliet Arsenal

Surface® Combustion, Inc. has recently shipped a new Ion Nitriding Thermal Processing Furnace System for Watervliet Arsenal. Watervliet was familiar with Surface Combustion's multitude of furnace offerings and awarded a contract to Surface so they could again bring their processing capability in-house. Adding control to the supply chain for product was one of the many reasons Watervliet added a Ion Nitriding Thermal Processing Furnace System to their plant. Surface® Combustion has always placed a high value on customer relationships and believes that an equipment purchase is the beginning of something much more than a finite transaction. In fact, they have been working with the Watervliet Arsenal location for over 40 years. “It is always great to see customers coming back to Surface because they appreciate our incredible product lines as well as our engineering capabilities and long standing relationships," said Ben Bernard, VP of Marketing at Surface. The Surface® Combustion Ion Nitriding System,...

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Surface Depths™ Reimagined

Surface App

Surface® Combustion has always placed a high value on customer relationships. We believe that an equipment purchase is the beginning of something much more than a finite transaction. Our first-class customer service, rebuild/retrofit, and aftermarket parts departments are a testament to this way of thinking. A few years back, Surface released a mobile application to calculate case depth. It was used by our engineers and customers alike to complete quick, accurate calculations from the shop floor. It quickly became evident that there was an opportunity to provide our customers with even more complementary calculators to aid in easier recipe adjustments. We are proud to introduce you to the new Surface Depths™ and hope that you find it as helpful as we do. Current calculators include:Case Depth Calculator – This calculator provides a quick, back-of-the-envelope style estimate of case depth (or time to...

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Cambridge Heat Treating Expands Adding Four Surface® Combustion Allcase® Furnaces

Allcase vertical radiant tube furnace

Maumee, Ohio:  Surface Combustion supplied two (2) new Allcase® Batch Integral Quench Furnaces to Cambridge Heat Treating of Cambridge, Ontario. Cambridge also purchased two (2) used Allcase furnaces in Ontario.  All four (4) Allcase furnaces are installed in the same line, along with a previously purchased 30”x30”x48” Allcase with top cool which are all serviced by Surface’s charge car, Uni-DRAW® Batch Tempering Furnaces, washers, and RX® Endothermic Atmosphere Gas Generator. Surface commissioned the new furnaces and continues to support the used equipment at its new home. The Allcase’s rugged design, ease of installation, and Surface’s aftermarket parts and service made this project a success. The 36”x48”x36” batch heat treat line greatly expands Cambridge’s capacity for carbonitriding, carburizing, neutral hardening, and added ferritic nitrocarburizing (FNC) and normalizing capacity with the atmosphere top cool chambers on the two (2) new Allcase furnaces. Says owner Peter Robbins, “We could not be happier with our...

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Surface® Combustion Allcase® BIQ Line Expansion at East Carolina Metal Treating

Allcase® Batch Integral Quench (BIQ) Furnace

Surface® Combustion, Inc. of Maumee, Ohio received a repeat order for an Allcase® Batch Integral Quench Furnace at the East Carolina Metal Treating facility in Raleigh, NC.  Identical to the previously commissioned Allcase furnace, the new Allcase is configured to process 36” wide by 48” long by 36” high workloads that weigh up to 4,000 lbs.  In addition to the two (2) Allcase furnaces, Surface supplied two (2) air cool stations, a scissors lift table and two (2) stationary load tables that integrate with an existing IQ line. According to Jamie Ramm, President of ECMT, the investment reflects the company’s long tradition of continually improving their ability to provide excellent service to their customers. On the initial order, Surface incorporated a purchaser specified controls system to match the existing UPC controls. The new Allcase works seamlessly with ECMT’s existing charge car, tempers, and washer. Says Ramm,...

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Seeking Nominations for ASM HTS/Surface Combustion Emerging Leader Award

The ASM HTS/Surface Combustion Emerging Leader Award recognizes an outstanding early-to-midcareer heat treating professional whose accomplishments exhibit exceptional achievements in the heat treating industry. The award was created in recognition of Surface Combustion's 100-year anniversary in 2015. The winning young professional will best exemplify the ethics, education, ingenuity, and future leadership of our industry. Deadline for the nomination is February 1, 2019. Past winners include Olga Rowan of Caterpillar in 2015 and Lee Rothleutner of Timken in 2017. For nomination rules and forms, visit the Heat Treating Society website at and click on Membership & Networking and Society Awards. For additional information, or to submit a nomination, contact Mary Anne Jerson at 440.338.5151 or email maryanne.jerson@asminternational....

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Surface® Combustion Attending 2018 International Fastener Expo

Surface Combustion is pleased to announce their participation in the 2018 International Fastener Expo. This event is the largest B2B of Industrial Fasteners and Tooling & Machinery in North America. Surface Combustion is anticipating the opportunity to gather with other professionals in Las Vegas, Nevada from October 30- November 1. The International Fastener Expo provides the opportunity for attendees to experience an all-day conference program presented by endorsing fastener associations. The conference includes keynote speakers, panelists, and an education program that will cover a variety of topics from leaders in the Fastener & Mill Supply industry. Multiple special events are arranged for networking opportunities. Surface Combustion will exhibit on the show floor at booth #1146. Stop by to tour the augmented reality RX® Endothermic Gas Generator. Surface Combustion looks forward to meeting customers, networking new relationships, and discovering new products. For over 100 years, Surface Combustion has earned a trusted reputation providing rugged,...

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Surface® Exhibiting at Heat Treat Mexico 2018

Surface® is proud to be a Corporate Sponsor of the upcoming Heat Treat Mexico 2018 presented by the ASM Heat Treating Society. This event which is being held in Queretaro, Mexico September 25-28, 2018 will allow for networking and training specific to thermal processing in Mexico. On Thursday, September 28th at 3:30 p.m., Ben Bernard, VP of Global Sales, is presenting on “Endothermic Atmosphere Monitoring and Control for Carburizing.” A bilingual speaker, Ben will be giving his presentation in Spanish and will be able to address questions in both Spanish and English. Having native Spanish speakers within sales, engineering, and aftermarket services at Surface is just another way that we bring value to our customer relationships. “Surface is once again excited to support this bi-annual event. The inaugural conference in 2016 was well planned and well attended, and we are anticipating another great event by the ASM Heat Treating Society. Whether it’s on the expo floor, at one of the many social gatherings, or during technical sessions we look forward...

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Surface® Combustion Prepares for FNA 2018

Furnaces North America 2018 is fast approaching, and Surface is getting ready to see you at Booth 200-202 in Indianapolis. This bi-annual celebration of all things heat treat is a great opportunity to get together to share knowledge to further the industry as a whole. Marketing Coordinator Stephanie Harcar shares, “Surface is always innovating, and we are excited to share some of our recent developments. Ben Bernard, VP of Sales and Marketing, will be presenting Tuesday on getting the most out of your BIQ for FNC and CQI-9 highlighting the versatility and flexibility of the industry powerhouse Allcase®. We have some fun things planned for the booth both Tuesday and Wednesday, so make sure you stop by and see us in Booth 200-202. You won’t be disappointed.” FNA 2018 also hosts the graduation ceremony for participants of the MTI YES Management Training Program. To date, Surface has more graduates of this program...

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Surface® Combustion Updates Website

Surface® Combustion, Inc., a leading industry provider of reliable thermal processing solutions, has recently updated their website. Surface Combustion has always prided themselves in providing detailed and attentive service to their customers and the improved website further details thermal systems and equipment customers need to accelerate their success. 

Surface Combustion is proud of the new website which details their standard atmosphere and vacuum furnace designs. Not only is the website mobile friendly, but thermal processing solutions on the product, industry, and process pages are easier to navigate. Long-term customer relationships have been the foundation and driving force since Surface Combustion launched their first patented heating concept in 1915. The improved website is another layer of support in Surface's willingness to provide value and serve their customers. 

“We are thrilled to provide a mobile friendly website for our clients,” states B.J. Bernard, President of Surface Combustion. “We know how vital it is for...

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