XLM Series Gas-Fired Box Furnace
The XLM series gas-fired furnaces reach a max temperature of 2,100°F (1,135°C). These medium-sized, economical furnaces are built for heavy-duty industrial heat treatment applications. With customizable features and energy-efficient burner system, the XLM series provides reliable performance and uniform heating for medium-scale production processes.
- Power Type:Natural Gas
- Available Models:10
- Customizable: Yes

What Makes the XLM Series Unique?
The XLM Series Series Gas-Fired Box Furnace is designed to deliver unmatched performance and reliability for a variety of demanding heat-treating processes.
- Single Package Burner •
- Featuring a single package burner that integrates the burner, gas train, and combustion blower into one preassembled unit, this furnace offers streamlined installation and setup. This design ensures reliable performance and reduces maintenance, making it ideal for demanding industrial applications.
- Adjustable Burner Settings •
- The adjustable burner settings allow the furnace to create a slightly reducing atmosphere, ideal for processing steel parts. This feature helps prevent oxidation and improves surface quality, making it perfect for precise heat treatment applications.
- Flame Safety System •
- The furnace meets NEC, OSHA, and FM guidelines, along with NFPA compliance, ensuring the highest standards of safety and reliability. This comprehensive adherence to safety regulations makes it suitable for use in rigorous industrial environments.
- Electronic Ignition •
- The furnace is equipped with electronic ignition and a UV sensor for enhanced flame safety. In the event of flame loss, it automatically initiates a purge condition, ensuring safe and reliable operation during heat treatment processes.
Comprehensive Features for Optimal Performance
The XLM 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 XLM Series
- Furnace Type
- Box
- Chamber Size
- Medium
- Max Temperature
- 2100ºF / 1135ºC
- Chambers
- Single
- Chamber Circulation
- Combustion Blower
- Insulation Type
- Ceramic Fiber Modules
- Door Type
- Horizontal
- Door Closure
- Manual Toggle Clamps
- Hearth Type
- Castable Floor
- Atmosphere Type
- Ambient Air
- Control Panel Type
- Side Mounted
- Control Voltage
- 120 VAC
- Temperature Controller
- Single Temperature
Optional / Upgrade Features
Optional and upgraded features available on XLM Series
- Chamber Circulation
- Circulation Fan
- Door Type
- Vertical (Electric), Vertical (Pneumatic)
- Hearth Type
- Alloy Plate
- Hearth Support
- Firebrick Piers, Castable Piers, Alloy Rollers
- Control Panel Type
- Free Standing
- Control Voltage
- 24 VDC
- Temperature Controller
- Basic Programmer, Advanced Programmer, PLC
- AMS Compliance
- AMS2750
- Data Recorder
- Addon
- Signal Tower
- Addon
- Forced Air Cooler
- Addon
- Loading/Unloading System
- Roller Hearth, Manual Charge Table, Manual Fork Loader, Electric Fork Loader, Internal Shelving
- Heat Shields
- Addon
XLM Series Standard Model Sizes
The XLM 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 | BTU | Lbs | Lbs | |
| XLM 244 | 24 | 22 | 24 | 26 | 28 | 39 | 56 | 68 | 60 | 100000 | 500 | 2,000 |
| XLM 246 | 24 | 22 | 36 | 26 | 28 | 41 | 56 | 68 | 72 | 125000 | 750 | 2,400 |
| XLM 248 | 24 | 22 | 48 | 26 | 28 | 53 | 56 | 68 | 84 | 125000 | 1,000 | 2,900 |
| XLM 272 | 24 | 22 | 72 | 26 | 28 | 77 | 56 | 68 | 107 | 175000 | 1,500 | 3,700 |
| XLM 3336 | 30 | 28 | 36 | 32 | 34 | 41 | 62 | 74 | 72 | 150000 | 900 | 2,900 |
| XLM 3348 | 30 | 28 | 48 | 32 | 34 | 53 | 62 | 74 | 84 | 175000 | 1,250 | 3,300 |
| XLM 3372 | 30 | 28 | 72 | 32 | 34 | 77 | 62 | 74 | 108 | 225000 | 1,875 | 4,300 |
| XLM 3636 | 36 | 34 | 36 | 38 | 40 | 41 | 68 | 80 | 72 | 175000 | 1,125 | 3,200 |
| XLM 3648 | 36 | 34 | 48 | 38 | 40 | 53 | 68 | 80 | 84 | 200000 | 1,500 | 3,800 |
| XLM 3672 | 36 | 34 | 72 | 38 | 40 | 77 | 68 | 80 | 108 | 300000 | 2,250 | 4,900 |
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