Surface's vast heat treat product line includes many batch furnace configurations to meet customer specified thermal processing and production requirements. From our signature Allcase® Batch Integral Quench Furnace to tried and proven vacuum furnace options and customized engineered products, we manufacture batch equipment to serve almost every market and any heat treat process.
Surface manufactures customized continuous heat treat furnaces to match your higher volume production or one-piece flow needs. Our large installed base of equipment is a testament to our proven ability to design and implement for your individual thermal processing specifications. We have the ideal continuous solution to drive your business—cast and mesh belt furnaces, roller and rotary hearth furnaces, and pusher roller and tray furnaces.
Surface's pioneering achievements in combustion and generation of protective atmospheres led to the most complete line of atmosphere heat treating equipment available today, including automated atmosphere furnaces. We manufacture standard and customized equipment to meet individual processing specifications as well as industry leading atmosphere generators.
For 50+ years, Surface has manufactured vacuum furnace equipment. Our expanding product line includes the Power Convection® Single Chamber Vacuum Furnace with 2- and 6-Bar quenching capability and the Multi-Chamber Furnace family including 2-Chamber, 3-Chamber and CloverleafTM. The VacuDraw®High Convection Vacuum Purged Temper Furnace enables high production, low-temperature vacuum processing.
Surface offers reliable, easy to maintain, economical on-site atmosphere furnace gas generators with the latest technologies. This includes the benchmark RX® Endothermic Gas Generator, DX® Exothermic Gas Generator, and custom engineered generators.
Surface offers a full line of process control systems for heat treat applications, from basic single loop controls to advanced Supervisory Control and Data Acquisition (SCADA) systems. The control systems are fully integrated with equipment process and motion hardware for efficient production.
Flexibility to meet daily changing requirements is the reason most industries prefer Surface heat treat furnaces. Our companion equipment allows for efficient, reliable load handling as well as integration of auxiliary processes, simple future expansion, and furnace refurbishment.
Surface® has a long history with the aerospace industry and appreciates the precision heat treating required. Aerospace requires a maximum...
An American company, Surface® is proud to support the agricultural industry. Our furnaces are built to heat treat engine and...
Surface® understands the high volume needs and the required quality standards of the automotive industry and the suppliers who serve...
Many applications such as gears, shafts, engine blocks and heads, brackets, racks, hand and power tools, lawn care and hardware,...
Commercial Heat Treating
Surface® is proud to design and manufacture equipment that heat treaters have trusted for generations. Many commercial heat treaters have built...
When it comes to fasteners, we all know that we can’t get very far in this world with using something...
Surface designs and manufactures custom furnace and heat treat solutions for the production of firearms components, including barrels, clips and...
For over 100 years, Surface® Combustion has provided thermal processing equipment for the forging process. Initial forged products included items...
Government Furnace Supplier
Surface Combustion Industrial Furnace History
Surface® Combustion has earned a trusted reputation over 100 years of providing rugged, reliable thermal processing...
Hand & Power Tools
Surface® furnaces paired with proper quenching help ensure optimal strength with minimal distortion which is so important to hand and...
Today’s roads, bridges and other infrastructure as well as construction sites, quarries and mines require bulldozing, digging, grading and crane...
Oil & Gas
Surface® furnaces are rugged and reliable like a roughneck. Our engineers work with you to determine the right equipment to...
This fast growing market gained strength from the movement toward near net shape processing where waste materials generated by machining...
Surface® offers multiple continuous and large batch furnace designs capable of the deep case carburizing, normalizing, through hardening, nitriding and...
Surface Combustion designs and manufactures custom furnace solutions for the destruction and elimination of chemical weapons, munitions, and ordnances.
Ferritic Nitrocarburizing (FNC)
Service & Support
The superior customer service at Surface® helps with equipment maintenance, operation, and documentation such as drawings, operating instructions, and spare parts lists. We are also a great resource for rebuild and retrofit services such as rebricking, alloy replacement, and controls upgrades. Our troubleshooting talent is very useful when the issue is not clear. Contact customer service for any of your ongoing furnace system needs.
Surface’s top-notch customer service department is backed by decades of experience and historical documentation.
- Engineering & Maintenance Support
- Metallurgical Test Lab
- Historical Documentation
Surface genuine replacements parts are backed by over 100 years of knowledge and experience that only an OEM can provide.
- Genuine Surface Replacement Parts
- Onsite Stocking and Management Program
Surface provides maintenance and upgrades by offering retrofit packages. We can improve product repeatability, increase productivity, and reduce energy consumption of your equipment.
- Rebricking and Alloy Replacement
- Replacement Controls
- Equipment Relocation Support
Our expertise and ability demonstrate the Value of Surface.
A Lifetime Of Expertise Building A Global Community Of Service
Surface strives to build customer relationships that endure long after the initial equipment purchase. When you require a thermal processing partner who can draw from a broad portfolio of proven designs, including pioneering atmosphere and vacuum products, let us show you the Value of SurfaceTM.
Early vacuum furnace designs began as single-chamber technology in which the heating and cooling required in a typical cycle were performed in the same chamber. While this is a cost-effective furnace design, there are dueling and sometimes completely incompatible design features that are necessary for optimum heating and optimum cooling. Better and thicker insulation helps with heating efficiency, but...Read More
Surface Combustion, Inc. Featured in Ohio Secretary of State’s Ohio Business Spotlight on Manufacturing
Surface Combustion is honored to be highlighted as a manufacturer in Ohio. This recognition is appreciated by Surface and our employees. Surface has two locations in Norwthwest Ohio and supports many manufacturers in Ohio. Read more by visiting the Read More
Call Surface with the following information ready to initiate your furnace solution.
- hours per year
- available space
- operating temperature range
- heat source
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For Parts and Service, have one or more of the following details regarding your furnace if possible:
- Serial number
- Drawing number
- Photos of your furnace or parts for replacement
- Spare parts list
- Furnace rebuild history
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