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| LH 60/12 with scale to measure weight reduction during annealing | LF 120/12 with fibre insulation |
LH 120/12S with quartz glass retort
Interior of low heat storage fibre material for fast cooling times in LF models
Cooling fan connected to automatic vent flap for shorter cooling time
LH 15/12 - LF 120/14
The LH 15/12 - LF 120/14 laboratory furnaces 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 fibre material (LF models). With a wide variety of optional equipment, these models can be optimally adapted to your processes.
- Tmax 1200 °C, 1300 °C, or 1400 °C
- Five-sided heating for very good temperature uniformity
- Heating elements on support tubes ensure free heat radiation and a long service life
- Protection of floor heating and flat stacking surface provided by embedded SiC plate in the floor
- LH models: multilayered, fibre-free insulation of light refractory bricks and special backup insulation
- LF models: high-quality fibre insulation with corner bricks for shorter heating and cooling times
- Door with brick-on-brick seal, hand fitted
- Short heating times due to high installed power
- Side vent with bypass connection for exhaust pipe
- Self-supporting arch for high stability and greatest possible protection against dust
- Quick lock on door
- Freely adjustable air slide intake in furnace floor
- Stand included
Additional equipment
- Parallel swinging door, pivots away from operator, for opening when hot
- Lift door with electro-mechanic linear drive
- Separate wall-mounting or floor standing cabinet for switchgear
- Automatic vent flap
- Cooling fan for shorter cycle times
- Protective gas connector, sealed housing
- Retort made of quartz glass for very clean atmosphere, quartz glass covered door with lid function
- Manual or automatic gas supply system
- Scale to measure weight reduction during annealing
| Model | Tmax | Inner dimensions in mm | Volume | Outer dimensions in mm | Power | Electrical | Weight | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | w | d | h | in L | W | D | H | kW | connection* | in kg | |
| LH 15/12 | 1200 | 250 | 250 | 250 | 15 | 570 | 790 | 1170 | 5,0 | 3-phase¹ | 150 |
| LH 30/12 | 1200 | 320 | 320 | 320 | 30 | 640 | 860 | 1240 | 7,0 | 3-phase¹ | 170 |
| LH 60/12 | 1200 | 400 | 400 | 400 | 60 | 720 | 1010 | 1320 | 8,0 | 3-phase | 260 |
| LH 120/12 | 1200 | 500 | 500 | 500 | 120 | 820 | 1110 | 1420 | 12,0 | 3-phase | 340 |
| LH 15/13 | 1300 | 250 | 250 | 250 | 15 | 570 | 790 | 1170 | 7,0 | 3-phase¹ | 150 |
| LH 30/13 | 1300 | 320 | 320 | 320 | 30 | 640 | 860 | 1240 | 8,0 | 3-phase¹ | 170 |
| LH 60/13 | 1300 | 400 | 400 | 400 | 60 | 720 | 1010 | 1320 | 11,0 | 3-phase | 260 |
| LH 120/13 | 1300 | 500 | 500 | 500 | 120 | 820 | 1110 | 1420 | 15,0 | 3-phase | 340 |
| LH 15/14 | 1400 | 250 | 250 | 250 | 15 | 570 | 790 | 1170 | 8,0 | 3-phase¹ | 150 |
| LH 30/14 | 1400 | 320 | 320 | 320 | 30 | 640 | 860 | 1240 | 10,0 | 3-phase¹ | 170 |
| LH 60/14 | 1400 | 400 | 400 | 400 | 60 | 720 | 1010 | 1320 | 12,0 | 3-phase | 260 |
| LH 120/14 | 1400 | 500 | 500 | 500 | 120 | 820 | 1110 | 1420 | 18,0 | 3-phase | 340 |
| Model | Tmax | Inner dimensions in mm | Volume | Outer dimensions in mm | Power | Electrical | Weight | ||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | w | d | h | in L | W | D | H | kW | connection* | in kg | |
| LF 15/13 | 1300 | 250 | 250 | 250 | 15 | 570 | 790 | 1170 | 7,0 | 3-phase¹ | 130 |
| LF 30/13 | 1300 | 320 | 320 | 320 | 30 | 640 | 860 | 1240 | 8,0 | 3-phase¹ | 150 |
| LF 60/13 | 1300 | 400 | 400 | 400 | 60 | 720 | 1010 | 1320 | 11,0 | 3-phase | 230 |
| LF 120/13 | 1300 | 500 | 500 | 500 | 120 | 820 | 1110 | 1420 | 15,0 | 3-phase | 300 |
| LF 15/14 | 1400 | 250 | 250 | 250 | 15 | 570 | 790 | 1170 | 8,0 | 3-phase¹ | 130 |
| LF 30/14 | 1400 | 320 | 320 | 320 | 30 | 640 | 860 | 1240 | 10,0 | 3-phase¹ | 150 |
| LF 60/14 | 1400 | 400 | 400 | 400 | 60 | 720 | 1010 | 1320 | 12,0 | 3-phase | 230 |
| LF 120/14 | 1400 | 500 | 500 | 500 | 120 | 820 | 1110 | 1420 | 18,0 | 3-phase | 300 |
| ¹Heating only between two phases *Please see page 54 for information on mains voltage | |||||||||||