FN Series Electric Box Furnace
The FN series electric box furnaces reach a max temperature of 2,200°F (1,204°C). These medium to large furnaces are designed for batch processing and heat treatment processes, including annealing and tempering. Featuring customizable atmosphere controls and advanced temperature controllers, the FN series provides reliable performance for demanding industrial applications.
- Power Type:Electric
- Available Models:11
- Customizable: Yes
What Makes the FN Series Unique?
The FN Series Series Electric Box Furnace is designed to deliver unmatched performance and reliability for a variety of demanding heat-treating processes.
- Atmosphere Controlled •
- The furnace case is sealed for use with an inert atmosphere, ensuring precise control over the internal environment. This feature is essential for processes requiring oxidation prevention and consistent quality.
- Large Work Zone •
- With its spacious work zone, this furnace is perfect for processing larger parts or accommodating multiple smaller components in a single cycle. This versatility increases productivity and efficiency for a wide range of heat treatment applications.
- Ceramic Element Holders •
- Proprietary high-temperature ceramic holders provide secure support for the heating elements, enhancing their radiating efficiency and longevity. The smooth surface prevents premature failure from thermal expansion, while the evenly spaced elements ensure superior temperature uniformity throughout the heating chamber.
Comprehensive Features for Optimal Performance
The FN Series comes equipped with a robust set of standard features, carefully selected to ensure efficient and reliable heat treatment processes. For more specialized applications, optional features are available to enhance the machines capabilities and meet your specific requirements.
Standard Features
All standard features included on FN Series
- Furnace Type
- Box
- Chamber Size
- Medium - Large
- Max Temperature
- 2200ºF / 1204ºC
- Chambers
- Single
- Chamber Circulation
- Circulation Fan
- Insulation Type
- Ceramic Fiber Modules
- Door Type
- Vertical (Electric)
- Door Closure
- Pneumatic Corner Clamps
- Element Type
- Kanthal A1
- Atmosphere Type
- Ambient Air, Inert
- Atmosphere Seal
- Improved
- Hearth Support
- Castable Piers
- Control Panel Type
- Free Standing
- Atmosphere Control
- Manual Rotameter
- Temperature Controller
- Single Temperature
- Control Voltage
- 120 VAC
- Element Power Controller
- Solid State Relay
Optional / Upgrade Features
Optional and upgraded features available on FN Series
- Door Type
- Vertical (Pneumatic)
- Element Type
- Kanthal APM, APM Rod Overbend
- Atmosphere Control
- Automatic Rotameter, Mass Flow Control
- Hearth Type
- Ceramic Plate, Alloy Plate
- Hearth Support
- Alloy Rollers
- Control Voltage
- 24 VDC
- Temperature Controller
- Basic Programmer, Advanced Programmer, PLC
- AMS Compliance
- AMS2750
- Data Recorder
- Addon
- Signal Tower
- Addon
- High Powered Heating Elements
- Addon
- Loading/Unloading System
- Roller Hearth, Manual Charge Table, Manual Fork Loader, Electric Fork Loader, Internal Shelving
- Element Power Controller
- Digital SCR Control
- Heat Shields
- Addon
- Forced Air Cooler
- Addon
FN Series Standard Model Sizes
The FN Series is available in a range of standard sizes to accommodate various load dimensions and production requirements. As with most L&L furnaces, custom sizes are available upon request. To inquire about custom sizes, please contact our sales team .
| Model Name | Working Dimensions | Interior Dimensions | Exterior Dimensions | Max Power | Max Load | Total Weight | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| W | H | D | W | H | D | W | H | D | kW | Lbs | Lbs | |
| FN 222 | 24 | 24 | 24 | 26 | 48 | 36 | 72 | 185 | 65 | 40 | 400 | 5,500 |
| FN 223 | 24 | 24 | 36 | 36 | 48 | 48 | 72 | 185 | 77 | 55 | 600 | 6,000 |
| FN 324 | 36 | 24 | 48 | 48 | 48 | 60 | 84 | 185 | 89 | 90 | 1,200 | 7,500 |
| FN 326 | 36 | 24 | 72 | 48 | 48 | 84 | 84 | 185 | 113 | 125 | 180 | 9,000 |
| FN 434 | 48 | 36 | 48 | 60 | 60 | 60 | 96 | 226 | 89 | 120 | 1,600 | 9,000 |
| FN 436 | 48 | 36 | 72 | 60 | 60 | 84 | 96 | 226 | 113 | 150 | 2,400 | 2,200 |
| FN 545 | 60 | 48 | 60 | 72 | 72 | 72 | 108 | 238 | 101 | 155 | 2,500 | 2,200 |
| FN 546 | 60 | 48 | 72 | 72 | 72 | 84 | 108 | 238 | 113 | 180 | 3,000 | 11,000 |
| FN 555 | 60 | 60 | 60 | 72 | 84 | 72 | 108 | 240 | 101 | 160 | 2,500 | 11,000 |
| FN 646 | 72 | 48 | 72 | 84 | 72 | 84 | 120 | 240 | 113 | 225 | 3,600 | 13,000 |
| FN 666 | 72 | 72 | 72 | 84 | 96 | 84 | 120 | 240 | 113 | 240 | 3,600 | 15,000 |
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