H 125/LB or LT - H 3000/LB or LT

These furnaces were specially developed for cooling complex structures or when the process requires the treatment of warm glass, e.g., the welding process in glass apparatus manufacturing. The wide-opening electro-hydraulically driven hood allows furnace opening even at high temperatures and provides easy access from 3 sides.

• Tmax 1280  °C
• Dual shell housing with rear ventilation for low shell temperatures
• Electrohydraulically driven hood with fixed table
• Five-sided heating from all four sides and from the table provides for a good temperature uniformity
• Heating elements mounted on support tubes provide for free radiation and long service life of the heating wire
• Bottom heating protected by SiC tiles which provide for a level stacking surface
• Multi-layer insulation consisting of lightweight refractory bricks backed by special insulation
• Long-life ceiling design with fiber insulation
• Manual exhaust air flap on the furnace roof
• Over-temperature limiter with manual reset for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load

Additional equipment

• Customized dimensions
• Tmax to 1400  °C
• Lift-bottom furnace version with driven table and fixed hood
• Uncontrolled or controlled cooling system with frequency-controlled cooling fan and motor-driven exhaust air vent
• Protective gas connection for purging the furnace with non-flammable protective or reaction gases
• Manual or automatic gas supply systems
• Multi-zone control adapted to the particular furnace provides model for optimal the temperature uniformity
• Commissioning of the furnace with test firing and temperature uniformity measurement (also with load) for the purpose of process optimization
• Additional tables, table changing system, also motor-driven
• Motor-driven exhaust air flap, switchable via the program
• Exhaust air and exhaust gas piping
• Thermal or catalytic exhaust cleaning systems
• Heat recovery systems
• Emergency purging with protective gas
• Process documentation and control with Controltherm MV software package, NTLog and NTGraph for the basic furnace or Nabertherm Control Center (NCC) for monitoring, documentation and control