Atmosphere furnaces remain the workhorse of controlled-environment heat treating. Surface’s lineup includes our Allcase® Batch Integral Quench Furnace, rotary retort, single chamber, lift cover, and belt configurations, all engineered for continuous, high-volume production that provide consistency from the first part to the last.
Vacuum furnaces deliver precision and repeatability and the VacuDraw® is engineered for low-temperature processing between 350°F and 1400°F, using convection heating for faster cycle times and lower operating costs than radiant designs. The Power Convection® (PC) Vacuum Furnace has a high-capacity 1400°F–2400°F range and our Cloverleaf™ Vacuum Furnace pioneered sealed, isolated-chamber carburizing.
Batch furnaces are built for decades of reliable, repeatable service, and our Allcase® Batch Integral Quench Furnace remains the industry benchmark. The VersaQuench® solves non-ferrous heat treat challenges with a quick quench furnace that transfers a load in as little as 10 seconds while holding tight temperature uniformity, and the Uni-DRAW® Tempering Furnace is a companion for pre-heating and draw cycles.
Surface’s continuous furnace line delivers uninterrupted and consistent results throughput across belt, roller hearth, and pusher configurations. Belt and mesh belt furnaces handle uniform, high-volume runs; roller hearth furnaces manage long or heavy products; and pusher furnaces move loads through sequential zones with precise time-cycle control.
Surface pioneered both the RX® Endothermic Gas Generator and the DX® Exothermic Gas Generator. Our RX® gas generator is trusted for carburizing and hardening with the largest installed base in North America, and the DX® gas generator is built for annealing, normalizing, and bluing applications up to 25,000 CFH.
From basic single-loop controls to advanced SCADA systems, Surface designs process control as a single integrated system, not a bolt-on afterthought. Supervisory software manages recipes, alarms, and production reporting with remote access built in, and our automation systems bring that same precision to load handling including operator-assisted transfer to fully automated, hands-free furnace operation.
Surface offers a diverse line of industry-leading heat treat and thermal processing equipment built on 110 years of engineering expertise, industry knowledge, and technical support. From aerospace and automotive to fasteners, gears, and powder metals, we serve the industries that depend on precision heat treating every day. Talk to our team about your objectives and we can custom design a solution for you today.
Furnace Selection Guide
Let’s find an innovative, efficient heat treat furnace solution for your thermal process needs. Our furnace selection guide is a great place to start.
Customer Service
As your heat treatment furnace manufacturer, Surface has a top-notch customer service department, backed by decades of experience and historical documentation.
Learn MoreAftermarket Parts
Surface genuine replacements parts are backed by 110 years of knowledge and experience that only an OEM can provide.
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Surface provides maintenance and upgrades by offering retrofit packages. Our technicians have the expertise to complete Machine Repair Overhaul (MRO) and furnace overhaul.
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Your partner for new ideas, technical expertise, and aftermarket service.
Since 1915, Surface Combustion has been solving thermal processing challenges for a wide range of industries. That’s 110 years of moving our customers forward with trusted experience and expertise. How can we help you?
Built to Perform
Why choose Surface?
We are the standard heat treat leaders have trusted for 110 years. When your operations demand consistent metallurgical results, Surface Combustion delivers industry leading solutions, reliable service, and family-driven values, all built into equipment manufactured right here in the USA.
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