High-Temperature Tube Furnaces for Horizontal or Vertical Operation up to 1800 °C

The high-temperature tube furnaces are available in either horizontal (type RHTH) or vertical (type RHTV) designs. High-quality insulation materials made of vacuum-formed fiber plates enable energy-saving operation due to low heat storage and heat conductivity. By using different gas supply systems, operations can be performed under non-flammable or flammable protective or reactive gases or under vacuum.

Standard Equipment

• Tmax 1600 °C, 1700 °C, or 1800 °C
• Single-zoned design
• Dual shell ventilated housing made of textured stainless steel sheets for low surface temperature and high stability
• 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.
• Insulation with vacuum-formed ceramic fiber plates
• Tube furnaces RHTV with frame for vertical operation
• Type B thermocouple
• Solid state relays provide for lownoise operation
• Ceramic working tube C 799 including two fiber plugs for operation under air
• Hanging and easy to change MoSi2 heating elements
• Power unit with low-voltage transformer and thyristor
• Over-temperature limiter with adjustable cutout temperature as temperature limiter to protect the furnace and load 
• Switchgear and control unit separate from furnace in separate floor standing cabinet
• Defined application within the constraints of the operating instructions
• NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
• Controller with touch operation P570 (50 programs with each 40 segments)