Nabertherm Tube Furnaces

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High-temperature Tube Furnaces RHTH for horizontal Operation and RHTV for vertical Operation up to 1800 °C, Gas Atmosphere or Vacuum

Horizontal tube furnace RHTH 70/300/16 with vacuum flanges as optional equipment

	Gas supply panel for nonflammable protective gas with shutoff valve and flow meter with regulator valve, piped and ready to connect
	Over-temperature limit controller

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 casing with slots for convection cooling
• Casing made of sheets of textured stainless steel (non-rusting design)
• Ceramic working tube including fibre plugs for operation in air, included in delivery
• Type B thermocouplePower unit with low-voltage transformer and thyristor controller
• Switching and control unit separate from furnace in own wall or standing cabinet

Additional Equipment

• Over-temperature limit controller with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the oven and load
• Cascade controller with temperature measurement in the working tube and in the oven chamber behind the tube
• Working tubes designed for process requirements
• Gas-tight flanges for protective gas and vacuum operation
• Manual or automatic gas supply system 3-zone control for optimization of temperature distribution Stand for vertical operation

22 RHTH 80-1000/16-5 with 5-zone temperature control, used as gradiant furnace