High-Temperature Tube Furnaces for Horizontal and Vertical Operation up to 1800ºC Gas Atmosphere or Vacuum

RHTH 120/150/.. - RHTH 120/600/.., RHTV 120/150/.. - RHTV 120/600/..
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 fibre plates enable energy-saving operation and a fast heating time due to low heat storage and heat conductivity. By using different gas supply systems, operations can be performed under a protective gas atmosphere, vacuum, or even with flammable gasses.

• Tmax 1600 °C, 1700 °C, or 1800 °C
• MoSi2 heating elements, mounted vertically for easy replacement
• Insulation with vacuum-formed ceramic fibre plates
• Rectangular outer housing with slots for convection cooling
• Models RHTV with hinges for wall mounting
• Housing made of sheets of textured stainless steel
• Ceramic working tube made of material C 799 incl. fibre plugs operation under air
• Type B thermocouple
• Power unit with low-voltage transformer and thyristor
• Over-temperature limit controller with manual reset for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the oven and load and with selectable maximum temperature gradient as tube protection
• Switchgear and control unit separate from furnace in separate floor standing cabinet

• Charge control with temperature measurement in the working tube and in the oven chamber behind the tube
• Working tubes designed for process requirements
• Display of inner tube temperature with additional thermocouple
• Gas-tight flanges for protective gas and vacuum operation
• Manual or automatic gas supply system
• Three- or five-zone control for optimization of temperature uniformity
• Check valve at gas outlet avoids intrusion of false air
• Stand for vertical operation
• Alternative working tubes see chart
• Laboratory table on castors or with fixed stand