L&L Special Furnace Co., Inc. Datasheets for Furnaces (industrial)

Industrial furnaces are built of several kinds of high temperature (refractory) materials to hold the process material and hold in the heat without breaking down during the several months that they usually run.
Furnaces (industrial): Learn more

Product Name	Notes
Bench Furnace -- B86	The B86 Bench furnace is an excellent general purpose bench mounted box furnace. The door is a simple horizontal single pivoted door with a clamping latch. Elements are located on...
CB Series -- CB 222 CB Series -- CB 223 CB Series -- CB 224 CB Series -- CB 324 CB Series -- CB 326	The CB Series box furnaces are specifically designed for carburizing atmosphere flow control systems. They have a normal maximum temperature of 1850°F (1010°C.)
Box Furnace -- CBH 124	The CBH 124 box furnace is specifically designed for neutral hardening. In the basic model with inert atmosphere some decarburization will be experienced because "inert" atmosphere is not totally neutral...
FB Series -- FB 333 FB Series -- FB 334 FB Series -- FB 336 FB Series -- FB 444 FB Series -- FB 446 FB Series -- FB 555 FB Series -- FB 666 FB Series -- FB 888	The FB Series Electric Box Furnaces are a general purpose ceramic fiber lined electric box furnace. They achieve high precision by featuring highly accurate controls, mercury contactors for fast cycle...
FC Series -- FC 444 FC Series -- FC 448 FC Series -- FC 5512 FC Series -- FC 5524 FC Series -- FC 556 FC Series -- FC 6612 FC Series -- FC 6624 FC Series -- FC 666 FC Series -- FC 8812 FC Series -- FC 8824	The FC Series are ceramic fiber lined car bottom furnaces. They feature tight pneumatic car seals, electric car drives and a wide range of custom options including electric and pneumatic...
FN Series -- FN 222 FN Series -- FN 222 FN Series -- FN 223 FN Series -- FN 223 FN Series -- FN 324 FN Series -- FN 324 FN Series -- FN 326 FN Series -- FN 326 FN Series -- FN 434 FN Series -- FN 434 FN Series -- FN 436 FN Series -- FN 436 FN Series -- FN 545 FN Series -- FN 545 FN Series -- FN 546 FN Series -- FN 546 FN Series -- FN 555 FN Series -- FN 555 FN Series -- FN 646 FN Series -- FN 646 FN Series -- FN 666 FN Series -- FN 666	The FN Series Electric Box Furnaces feature extremely uniform temperature gradients over a wide temperature range, and atmosphere tight construction. Two uniformity ranges are offered: +/-10°F (+/-5°C) and +/-5°F (+/-3°C).
FS Series -- FS 224 FS Series -- FS 2412 FS Series -- FS 2424 FS Series -- FS 246 FS Series -- FS 4512 FS Series -- FS 4524	The FS Series Shuttle Envelope Kilns are primarily designed for the firing of ceramic ware. Each furnace system includes two fixed stationary bases and a moving kiln that "shuttles" between...
GF Series -- GF 236 GF Series -- GF 244 GF Series -- GF 246 GF Series -- GF 248 GF Series -- GF 29 GF Series -- GF 3636 GF Series -- GF 3648 GF Series -- GF 3672 GF Series -- GF 39 GF Series -- GF 524 GF Series -- GF 814 GF Series -- GF 824 GF Series -- GF 836 GF Series -- GF 9	The GF SERIES Electric Furnaces feature 2800°F (1535°C) operation. Silicon carbide elements are controlled with a phase angle fired SCR. The door features a deep plug for minimal heat loss...
GHE Series -- GHE 12 GHE Series -- GHE 15 GHE Series -- GHE 24 GHE Series -- GHE 36	The GHE SERIES Ultra High Temperature Bottom Loading Elevator Furnaces feature lightweight ultra high temperature ceramic fiber insulation system for fast heat up and low BTU input requirements. The load...
GHH Series -- GHH 12 GHH Series -- GHH 14 GHH Series -- GHH 24 GHH Series -- GHH 36 GHH Series -- GHH 5 GHH Series -- GHH 8	The GHH SERIES Ultra High Temperature Front Loading Box Furnaces feature a unique lightweight ultra high temperature ceramic fiber insulation system for fast heat up and low BTU input requirements.
GL Series -- GL 29 GL Series -- GL 39 GL Series -- GL 9	The GL SERIES Electric Silicon Carbide Element Bench Mounted Furnaces feature true continuous 2500°F (1370°C) operation. This is ideally suited for applications where temperatures between 2000°F (1095°C) and 2500°F need...
GLF Series -- GLF 236 GLF Series -- GLF 244 GLF Series -- GLF 246 GLF Series -- GLF 248 GLF Series -- GLF 3636 GLF Series -- GLF 3648 GLF Series -- GLF 3672 GLF Series -- GLF 524 GLF Series -- GLF 814 GLF Series -- GLF 824 GLF Series -- GLF 836	The GLF SERIES Electric Silicon Carbide Element Floor Standing Furnaces feature continuous 2500°F (1370°C) operation. This is ideally suited for applications where temperatures between 2000°F (1095°C) and 2500°F need to...
Bench Furnace -- GS1714	The GS1714 is an excellent product for use in many applications. The control is a remarkably powerful multi-program control, the four sides of elements makes for a very even heating,...
HB Series -- HB 29 HB Series -- HB 39 HB Series -- HB 9	The HB Bench furnaces are good general purpose bench mounted box furnaces. The door is an easy to operate spring loaded vertical plug door. Elements are located on the sides.
Quench Furnace -- IQV1224	The IQV 1224 is a vertical loading integral quench furnace. The seal between the furnace chamber and the quench tank is made in the quenchant media. This provides the furnace...
Bell/Shuttle Lift Furnace -- JSC Series	The JSC SERIES is an electric Bell/Shuttle Lift furnace with a bell type "top hat" alloy low dew point retort. The system normally includes one plug insulated base, one retort,...
Ceramic Lined Pit Furnace -- PT Series	The PT Series are ceramic fiber lined pit furnaces. They can be designed for either air or controlled atmosphere applications. They are designed to be located in a pit in...
Dual Chamber Furnace -- QD29	The QD 29 Dual Chamber Heat Treating furnace features a 2275°F (1245°C) high heat chamber for hardening and a 1250°F (675°C) recirculating oven for tempering. The over/under configuration saves floor...
QD Series -- QD 236 QD Series -- QD 524 QD Series -- QD 814 QD Series -- QD 824 QD Series -- QD 836	The QD Series Dual Chamber Heat Treating furnaces feature a 2350°F (1285°C) high heat chamber for hardening and a 1250°F (675°C) recirculating oven for tempering. The over/under configuration saves floor...
Dual Chamber Furnace -- QDG29	The QDG 29 Dual Chamber Heat Treating furnace features a 2500°F (1370°C) high heat chamber for hardening and a 1875°F (1025°C) recirculating oven for preheating and tempering. The over/under configuration...
QDH Series -- QDH 236 QDH Series -- QDH 524 QDH Series -- QDH 814 QDH Series -- QDH 824 QDH Series -- QDH 836	The QDH Series Dual Chamber Heat Treating furnaces feature a 2350°F (1285°C) high heat chamber for hardening and a 1875°F (1025°C) recirculating chamber for preheating and/or tempering. The over/under configuration...
QDS Series -- QDS 124 QDS Series -- QDS 126	The QDS Series Dual Chamber Heat Treating furnaces feature a 2350°F (1285°C) high heat chamber for hardening and a 1250°F (675°C) recirculating oven for tempering. The over/under configuration saves floor...
QT Series -- QT 1224 QT Series -- QT 1824 QT Series -- QT 2424 QT Series -- QT 2436 QT Series -- QT 2448 QT Series -- QT 3648 QT Series -- QT 3672 QT Series -- QT 4848 QT Series -- QT 4872 QT Series -- QT 7272	The QT Series quench tanks are used for the uniform quenching of hot steels. They may be used with water, light weight polymer, or oil. They are not designed for...
TB Series -- TB 112 TB Series -- TB 1224 TB Series -- TB 1236 TB Series -- TB 124 TB Series -- TB 1248 TB Series -- TB 1272 TB Series -- TB 1424 TB Series -- TB 1436 TB Series -- TB 1448 TB Series -- TB 1472 TB Series -- TB 212 TB Series -- TB 224 TB Series -- TB 312 TB Series -- TB 324 TB Series -- TB 336 TB Series -- TB 512 TB Series -- TB 524 TB Series -- TB 536 TB Series -- TB 612 TB Series -- TB 624 TB Series -- TB 636 TB Series -- TB 824 TB Series -- TB 836	The TB SERIES Bench Mounted Electric Tube Furnaces feature even heating around the perimeter of the tube, ceramic fiber insulation, and split tube construction for easy changing of the tubes.
TBU Series -- TBU 1224 TBU Series -- TBU 1236 TBU Series -- TBU 1248 TBU Series -- TBU 212 TBU Series -- TBU 224 TBU Series -- TBU 26 TBU Series -- TBU 512 TBU Series -- TBU 524 TBU Series -- TBU 536 TBU Series -- TBU 612 TBU Series -- TBU 624 TBU Series -- TBU 636 TBU Series -- TBU 648 TBU Series -- TBU 812 TBU Series -- TBU 824 TBU Series -- TBU 836 TBU Series -- TBU 848	The TBU SERIES Bench Mounted Electric Three Zone Tube Furnaces utilize three separate heating zones to achieve +/-5°F (+/-2.7°C) or better within the center zone over a wide temperature range.
XLB Series -- XL 112 XLB Series -- XL 124 XLB Series -- XL 126 XLB Series -- XL 894	The XLB furnaces achieve high precision by featuring highly accurate digital PID controls, mercury contactors for fast cycle times, two zone control (top and bottom), and very even spacing of...
XLC Series -- XLC 244 XLC Series -- XLC 246 XLC Series -- XLC 248 XLC Series -- XLC 272 XLC Series -- XLC 3348 XLC Series -- XLC 3372 XLC Series -- XLC 3448 XLC Series -- XLC 3472 XLC Series -- XLC 3648 XLC Series -- XLC 3672 XLC Series -- XLC 524 XLC Series -- XLC 824 XLC Series -- XLC 836 XLC Series -- XLC 848	The XLC SERIES Atmosphere Retort Furnaces represent an advanced design which emphasizes process quality and control as well as operator safety. The control system, alloy retort and flow system are...
XLE Series -- XLE 244 XLE Series -- XLE 246 XLE Series -- XLE 248 XLE Series -- XLE 272 XLE Series -- XLE 3248 XLE Series -- XLE 3260 XLE Series -- XLE 3272 XLE Series -- XLE 3348 XLE Series -- XLE 3360 XLE Series -- XLE 3372 XLE Series -- XLE 3436 XLE Series -- XLE 3448 XLE Series -- XLE 3472 XLE Series -- XLE 3636 XLE Series -- XLE 3648 XLE Series -- XLE 3672 XLE Series -- XLE 4060 XLE Series -- XLE 4080 XLE Series -- XLE 448 XLE Series -- XLE 524 XLE Series -- XLE 814 XLE Series -- XLE 816 XLE Series -- XLE 824 XLE Series -- XLE 836 XLE Series -- XLE 848	The XLE Series are highly uniform and controllable electric box furnaces widely adaptable to many applications. In the heat treating field these include hardening, neutral hardening, solution heat treating, stress...
XLG Series -- XLG 324 XLG Series -- XLG 334 XLG Series -- XLG 336 XLG Series -- XLG 444 XLG Series -- XLG 446 XLG Series -- XLG 556 XLG Series -- XLG 666 XLG Series -- XLG 668 XLG Series -- XLG 8810 XLG Series -- XLG 888	The XLG furnaces are multi-purpose gas fired box furnaces. They are highly uniform in temperature and feature accurate digital controls and multiple medium or high velocity Eclipse "Thermjet" proportionally controlled...
XLM Series -- XLM 244 XLM Series -- XLM 246 XLM Series -- XLM 248 XLM Series -- XLM 272 XLM Series -- XLM 3336 XLM Series -- XLM 3348 XLM Series -- XLM 3372 XLM Series -- XLM 3636 XLM Series -- XLM 3648 XLM Series -- XLM 3672	The XLM furnaces are multi-purpose gas fired box furnaces. They are uniform in temperature and feature accurate digital controls and a single proportionally controlled burner with a 50:1 turn down...

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