The TruTemp™ Box Furnaces are an excellent solution to heat treat a wide variety of materials, from welded fabrications and forgings, to spun products and plates. Processes include tempering, hardening, normalizing, annealing, preheating and stress relieving.
Economical operation is achieved with superior thermal process engineering practices that apply state-of-the-art insulation material, airflow management, and custom programming.
Overview
Box Furnaces process products one at a time or in a single group at temperatures over 1100°F (592°C).
A Box Furnace features a vertical lift or swing out door allowing the various sized product(s) to be placed in the furnace. Box Furnaces are utilized for heat-treating, calcining, curing, annealing, stress relieving, preheating, tempering, and other high temperature thermal processes. Multiple zone heating technology can be integrated to maintain exceptional part temperature uniformity, and achieve ramp/soak heating and cooling profiles.

The TruTemp™ Box Furnace has many established design features, such as vertical lift doors, energy efficient insulation, fully proportional gas and electric heat, heavy duty cast hearth and piers and state-of-the art control packages.
The TruTemp™ Box Furnace has standard designs to 2250°F and can be customized for each individual application up to 3300°F. In addition, all furnaces are available with optional inert gas and recirculation systems.
Each Industrial Furnace project undergoes a comprehensive evaluation of every production requirement. The assessment includes areas such as production goals, part configuration and construction, part mass, temperature profile, and facility location or elevation.
The TruTemp Box Furnace offers high-temperature, heat treating up to 2250 degrees. Box furnaces are an excellent choice when space is at a premium. ITS can design custom box furnaces for applications up to 3300 degrees.
Features & Specifications
TruTemp Box Furnace Features include:
- Recirculation fans with high efficiency motors to reduce energy consumption.
- Recirculation ductwork designs provide precise airflow to specific areas of the product resulting in smaller foot print ovens thus reducing utility and factory space costs.
- High-efficiency (gas or electric) heat sources to reduce energy costs.
- Gas and electric versions
- Heavy plate construction
- Accepts heavy loads
- Energy efficient ceramic fiber insulation
- NEMA 12 Control Panel (machine-mounted)
- Electric vertical lift door
- Single button E-stop on control panel
- Burner safety equipment
- Furnace chamber and hi-limit microprocessor based temperature controllers
- Electric version SCR controlled
- Heavy duty piers with optional hearth
- Excellent temperature uniformity
- Factory tested to ensure on time delivery and field start up.
Available Options
- PLC/HMI for process automation
- Data acquisition
- Inert gas construction
- Recirculation Fans
- Automatic Shutdown Circuit
- UL/CE Listed Electrical Panel – panel inspected, certified, serialized (CE provides declaration of conformity)
- Special temperature uniformities
- Hearth roller rails
- Load tables
- Quench tanks
- Spare Parts
- Field installation, installation supervision and commissioning
Temperature Ranges
- Up to 2250°F (1371°C) Standard Sizes
- Up to 3300°F (1816°C) Custom Equipment
Power Source Options
- Main Power Supplies 208 to 690 Volt AC, 50 and 60 HZ
- Control Voltage 24 Volt DC or 120/220 Volt AC
Heat Sources
- Electric
- Natural Gas
Material Handling Options
Box furnaces are typically loaded manually (Forklift, Roller Hearth, etc).
Construction Specifications
- Heavy Duty Welded Steel exterior
- Stainless Steel and various Metal Alloys for temperature and corrosion resistance
- High-Density energy-saving insulation
Industries Served
Typical Heat Processing Application(s)
- Annealing
- Calcining
- Curing
- Die Preheat
- Stress Relief
Industry Applications
- Aerospace
- Agriculture
- Automotive
- Electronic
- Foundry
- Military
- Mining
- And many more
Downloads

TruTemp™ Box Furnace Brochure

International Thermal Systems Overview
Contact the ITS Furnace Group
We are ready to assist with application recommendations and product proposals.