Chamber Furnaces LH

The chamber furnace systems LH 15/12 - LH 60/12 have proven themselves for many years as professional chamber furnaces. For stress relief annealing after laser sintering, the furnaces are equipped with a protective gas box for non-flammable protective gas, e.g. argon, and an automatic gas supply system for flow rates of 4 l – 50 l/min. The design with gas supply box is a cost-effective alternative to retort furnaces and is suitable for many processes. The batch to be annealed is wrapped in annealing/hardening foil during the process to protect it from oxidation and decarburization. To protect the bottom insulation of the furnace from mechanical stress, a charging plate is required when using a gas supply box.

· Tmax 1200°C
· Recommended operating temperatures up to 1100°C, at operating temperatures up to 1150°C increased wear of the protective gas box must be expected
· 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
· Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
· Multi-layered insulation of light refractory bricks and special backup insulation
· Exclusive use of insulation materials without categorization according to EC Regulation No 1272/2008 (CLP). This explicitly means that alumino silicate wool, also known as "refractory ceramic fiber" (RCF), which is classified and possibly carcinogenic, is not used.
· Motorized exhaust air flap
· Adjustable air inlet in furnace floor
· Base included
· Protective gas boxes for inert gas atmosphere with additional thermocouple, type K
· Automatic gas supply system for flow rates of 4 l – 50 l/min
· Charge control for measuring the temperature directly at the load in the gas supply box
· Charging plate and annealing and hardening foils
· Controller with touch operation P570 (50 programs with each 40 segments)
· MyNabertherm App for online monitoring of the firing on mobile devices for free download
· Freeware NTEdit for convenient program input via MS Excel on the PC
· Freeware NTGraph for evaluation and documentation of firings using MS Excel on the PC
· NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
· Defined application within the constraints of the operating instructions