Chamber Furnaces with Brick Insulation or Fiber Insulation up to 1400 °C
LH models: multi-layered insulation of light refractory bricks and special backup insulation.
LF models: high-quality fiber insulation with corner bricks for shorter heating and cooling times.
Function and equipment
These big chamber furnaces LH 15/12 - LF 120/14 have been trusted for many years as professional chamber furnaces for the laboratory. These furnaces are available with either a robust insulation of light refractory bricks (LH models) or with a combination insulation of refractory bricks in the corners and low heat storage, quickly cooling fiber material (LF models). With a wide variety of optional equipment, these chamber furnaces can be optimally adapted to your processes.
Standard Equipment
- Tmax 1200 °C, 1300 °C, or 1400 °C
- Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
- High furnace chamber with five-sided heating for very good temperature uniformity
- Heating elements on support tubes ensure free heat radiation and a long service life
- Controller mounted on furnace door and removable for comfortable operation
- Protection of bottom heating and flat stacking surface provided by embedded SiC plate in the floor
- LH models: multi-layered insulation of light refractory bricks and special backup insulation
- LF models: high-quality fiber insulation with corner bricks for shorter heating and cooling times
- Exclusive use of insulation materials without categorization according to EC Regulation No. 1272/2008 (CLP)
- Door with brick-on-brick seal, hand fitted
- Gegenerously dimensioned heating provides for short heating times
- Self-supporting arch for high stability and greatest possible protection against dust
- Motorized exhaust air flaps
- Freely adjustable air inlet integrated in furnace floor
- Base included
- Controller with touch operation B500 (5 prgrams with each 4 segments)
- Defined application within the constraints of the operating instructions
- NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
Additional equipment
Additional Equipment
- Parallel swinging door (user protected from heat radiation)
- Lift door with electro-mechanic linear drive for opening when hot
- Cooling system to cool the furnace with a defined temperature gradient or with a preset fresh air volume. Both operating modes can be switched on and off for different segments by means of the extra function of the controller.
- Protective gas connection to purge with non-flammable process gases
- Manual or automatic gas supply system
- Stainless steel exhaust hood as interface to customer’s exhaust system
- Scale to measure weight reduction during annealing
- Process control and documentation via VCD software package for monitoring, documentation and control
Technical specifications
Model | Tmax | Inner dimensions in mm | Volume | Outer dimensions1 in mm | Connected | Electrical | Weight | ||||
---|---|---|---|---|---|---|---|---|---|---|---|
in °C | w | d | h | in l | W | D | H | load in kW | connection | in kg | |
LH 15/12 | 1200 | 250 | 250 | 250 | 15 | 680 | 860 | 1230 | 5 | 3-phase2 | 170 |
LH 30/12 | 1200 | 320 | 320 | 320 | 30 | 710 | 930 | 1290 | 7 | 3-phase2 | 200 |
LH 60/12 | 1200 | 400 | 400 | 400 | 60 | 790 | 1180 | 1370 | 8 | 3-phase | 300 |
LH 120/12 | 1200 | 500 | 500 | 500 | 120 | 890 | 1180 | 1470 | 12 | 3-phase | 410 |
LH 216/12 | 1200 | 600 | 600 | 600 | 216 | 990 | 1280 | 1590 | 20 | 3-phase | 470 |
LH 15/13 | 1300 | 250 | 250 | 250 | 15 | 680 | 860 | 1230 | 7 | 3-phase2 | 170 |
LH 30/13 | 1300 | 320 | 320 | 320 | 30 | 710 | 930 | 1290 | 8 | 3-phase2 | 200 |
LH 60/13 | 1300 | 400 | 400 | 400 | 60 | 790 | 1180 | 1370 | 11 | 3-phase | 300 |
LH 120/13 | 1300 | 500 | 500 | 500 | 120 | 890 | 1180 | 1470 | 15 | 3-phase | 410 |
LH 216/13 | 1300 | 600 | 600 | 600 | 216 | 990 | 1280 | 1590 | 22 | 3-phase | 470 |
LH 15/14 | 1400 | 250 | 250 | 250 | 15 | 680 | 860 | 1230 | 8 | 3-phase2 | 170 |
LH 30/14 | 1400 | 320 | 320 | 320 | 30 | 710 | 930 | 1290 | 10 | 3-phase2 | 200 |
LH 60/14 | 1400 | 400 | 400 | 400 | 60 | 790 | 1180 | 1370 | 12 | 3-phase | 300 |
LH 120/14 | 1400 | 500 | 500 | 500 | 120 | 890 | 1180 | 1470 | 18 | 3-phase | 410 |
LH 216/14 | 1400 | 600 | 600 | 600 | 216 | 990 | 1280 | 1590 | 26 | 3-phase | 470 |
LF 15/13 | 1300 | 250 | 250 | 250 | 15 | 680 | 860 | 1230 | 7 | 3-phase2 | 150 |
LF 30/13 | 1300 | 320 | 320 | 320 | 30 | 710 | 930 | 1290 | 8 | 3-phase2 | 180 |
LF 60/13 | 1300 | 400 | 400 | 400 | 60 | 790 | 1180 | 1370 | 11 | 3-phase | 270 |
LF 120/13 | 1300 | 500 | 500 | 500 | 120 | 890 | 1180 | 1470 | 15 | 3-phase | 370 |
LF 15/14 | 1400 | 250 | 250 | 250 | 15 | 680 | 860 | 1230 | 8 | 3-phase2 | 150 |
LF 30/14 | 1400 | 320 | 320 | 320 | 30 | 710 | 930 | 1290 | 10 | 3-phase2 | 180 |
LF 60/14 | 1400 | 400 | 400 | 400 | 60 | 790 | 1180 | 1370 | 12 | 3-phase | 270 |
LF 120/14 | 1400 | 500 | 500 | 500 | 120 | 890 | 1180 | 1470 | 18 | 3-phase | 370 |
1External dimensions vary when furnace is equipped with additional equipment. Dimensions on request. 2Heating only between two phases |
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Further products
Catalog
A complete overview of our extensive range of furnace concepts for heat treatment after 3D printing can be found in our catalog “Additive Manufacturing”.