Muffle furnaces with hinged or lifting door

The Nabertherm L 3/11 – LT 40/12 muffle furnace range is perfect for daily laboratory use. Excellent performance, modern design and a high degree of reliability are the hallmarks of this model range. Muffle furnaces are supplied with a hinged or lifting door.

• Maximum temperature 1100 ° C or 1200 ° C;
• Heating the oven from both sides with ceramic burners (for models L 24/11 – LT 40/12, heating from three sides);
• Ceramic heating plates with an integrated heating element, protected against splashes and fumes (easy to replace);
• Vacuum hardened high strength fiber module;
• Muffle furnace body made of structured stainless steel sheets;
• Double wall muffle furnace body for low external temperatures and high stability;
• Muffle furnaces are available as an option with either a hinged door (L), which can be used as an additional loading and unloading area, or a lifting door (LT), with the hot side facing away from the operator;
• Adjustable intake air opening in the muffle furnace door;
• Exhaust hole in the rear wall of the furnace;
• Quiet operation of the muffle furnace heating system with semiconductor relays.

Additional equipment for muffle furnaces:

• Chimney, chimney with fan or catalytic converter;
• Adjustable temperature limiter with adjustable shutdown temperature for thermal protection class 2 according to EN 60519-2 as overheating protection for ovens and products;
• Shielding gas supply at the rear of the furnace;
• Manual or automatic gas supply system.

Technical data for Nabertherm hinged door muffle furnaces
Furnace model	T max , ° C		Internal dimensions, mm						Volume, l		External dimensions, mm					power, kWt	Power supply	Weight, kg	Minutes to T max
			Sh		D		IN				Sh		D		IN
L 3/11	1100		160		140		100		3		380		370		420	1,2	1-phase	twenty	60
L 5/11	1100		200		170		130		5		440		470		520	2.4	1-phase	35	60
L 9/11	1100		230		240		170		9		480		550		570	3.0	1-phase	45	75
L 15/11	1100		230		340		170		15		480		650		570	3.6	1-phase	55	90
L 24/11	1100		280		340		250		24		560		660		650	4.5	3-phase	75	95
L 40/11	1100		320		490		250		40		600		790		650	6.0	3-phase	95	95
L 3/12	1200		160		140		100		3		380		370		420	1,2	1-phase	twenty	75
L 5/12	1200		200		170		130		5		440		470		520	2.4	1-phase	35	75
L 9/12	1200		230		240		170		9		480		550		570	3.0	1-phase	45	90
L 15/12	1200		230		340		170		15		480		650		570	3.6	1-phase	55	105
L 24/12	1200		280		340		250		24		560		660		650	4.5	3-phase	75	110
L 40/12	1200		320		490		250		40		600		790		650	6.0	3-phase	95	100
Technical Data for Nabertherm Lift Door Muffle Furnaces
Furnace model	T max , ° C	Internal dimensions, mm						Volume, l		External dimensions, mm						power, kWt	Power supply	Weight, kg	Minutes to T max
		Sh		D		IN				Sh		D		IN*
LT 3/11	1100	160		140		100		3		380		370		420 + 165		1,2	1-phase	twenty	60
LT 5/11	1100	200		170		130		5		440		470		520 + 220		2.4	1-phase	35	60
LT 9/11	1100	230		240		170		9		480		550		570 + 290		3.0	1-phase	45	75
LT 15/11	1100	230		340		170		15		480		650		570 + 290		3.6	1-phase	55	90
LT 24/11	1100	280		340		250		24		560		660		650 + 335		4.5	3-phase	75	95
LT 40/11	1100	320		490		250		40		600		790		650 + 335		6.0	3-phase	95	95
LT 3/12	1200	160		140		100		3		380		370		420 + 165		1,2	1-phase	twenty	75
LT 5/12	1200	200		170		130		5		440		470		520 + 220		2.4	1-phase	35	75
LT 9/12	1200	230		240		170		9		480		550		570 + 290		3.0	1-phase	45	90
LT 15/12	1200	230		340		170		15		480		650		570 + 290		3.6	1-phase	55	105
LT 24/12	1200	280		340		250		24		560		660		650 + 335		4.5	3-phase	75	110
LT 40/12	1200	320		490		250		40		600		790		650 + 335		6.0	3-phase	95	100
* incl. open lift door

Controller B410

• Easy to install the program
• Black and white LC screen, high contrast
• Display text messages (2 lines)
• Input data with 4 keys (on/off/pause, menu, back, info)
• Stores 5 programs, each program can be adjusted in 4 steps
• Step of temperature adjustment 1 o C
• Accuracy ± 1°C
• Choice of °C/°F
• Display on the menu parameters:
• Working timer
• Count kWh
• Show error history
• Output of control values
• Auto-optimization feature
• Calibration of measuring range with selection of up to 10 points
• NTLog USB port for data retrieval and processing
• In case of power failure, the following modes can be selected:
• Automatically resume running according to the program right before the power failure
• Automatically continue running according to the program right before the power failure if the power failure time is < 2 minutes, if more than that, do not continue running.
• Automatically continue running according to the program right before the power failure if the temperature does not drop lower than 50oC, if it is lower, do not continue running
• Do not continue to run the old program when restoring the power

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