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 bottom 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