In order to meet the challenging requirements of productivity and temperature distribution, the high-temperature furnaces HT 64/17 LT - HT 1440/17 LB are used. The design of the furnaces is tailored to customer's needs. From top-hat furnaces with fixed tables, to table switching systems, to fully automatic debinding and sintering systems with exhaust cleaning systems and with integrated safety systems to improve productivity and quality, we can also develop a solution for your application!

• Tmax 1750 °C or 1800 °C
• Design as top-hat or elevator furnace (lift-top or lift-bottom principle)
• Furnace sizes from 4 to 440 liters
• High-quality molybdenum disilicide (MoSi2) heating elements
• Electro-hydraulic hood drive for almost vibration-free movement
• Safe and tight hood closing due to labyrinth seal and additional sand cup
• Floor reinforcement with level stacking support to protect the fibre insulation and to carry heavy charges as standard from HT 16/16 upwards
• Over-temperature limit controller for product and furnace protection
• Furnace chamber lined with high quality durable fibre material
• Special ceiling construction, with high durability
• Long-lasting thermocouple, PtRh-Pt, type B

Technical data of /LT (Lift-Top) and /LB (Lift-Bottom) furnaces are identical

Additional Features HT 64/17 LT or /LB - HT 1440/17 LT or /LB

• Interchargeable table system Particularly for complex firing loads with long charging times, interchargeable table systems are recommended. Depending on customer requirements, also a fully automatic table exchange can be programmed, e.g. at night or on the weekend.
• Air-inlet ventilator To accelerate cycle times, fans adapted to the furnace size are used. The fan speed is preselected per segment. The controller is switched on and off automatically. Different speeds can thus be used e.g. for binder removal or cooling. Also, linear cooling can be used by setting the temperature gradient.
• Inlet-air preheating Inlet-air preheating can also be used with our high-temperature furnaces. The furnace can thus be used for both debinding and sintering in a single process (see also page 11).
• Start-up circuit A special circuit in the switchgear eliminates the problem of heating too fast when below 250 °C, typical for molybdenum disilicide heating elements, is eliminated. This feature is particularly recommended when firing ceramics which need sensitive handling in this temperature range.
• Customized furnace dimensions
• Stainless steel exhaust gas hoods
• Catalytic or thermal afterburners (see page 28)
• Process documentation by temperature plotter or PC software
• Protective gas inlet and outlet, e.g. for reduction of oxygen content in exothermic debinding