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 fiber 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 non-flammable or flammable protective or reactive gases or under vacuum.

• Tmax 1600 °C, 1700 °C, or 1800 °C
• MoSi2 heating elements, mounted vertically for easy replacement
• Insulation with vacuum-formed ceramic fiber 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. fiber plugs operation under air
• Type B thermocouple
• Power unit with low-voltage transformer and thyristor
• Over-temperature limiter 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

Additional equipment

• Charge control with temperature measurement in the working tube and in the furnace chamber outside the tube
• Display of inner tube temperature with additional thermocouple
• Gas tight flanges for protective gas and vacuum operation
• Manual or automatic gas supply system
• Three-zone control for optimization of temperature uniformity (only RHTH)
• Check valve at gas outlet avoids intrusion of false air
• Stand for vertical operation