High-temperature Tube Furnaces for Horizontal Operation and for Vertical Operation up to 1800 °C, Gas Atmosphere or Vacuum
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| 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 |
Horizontal tube furnace RHTH 120/300/16 with vacuum flanges as additional equipment
RHTV 120/150/17 vertical tube furnace with stand and gas supply system 2 as additional equipment
RHTH 120/600/16 with upstream furnace RT 50-250/11 to preheat the process gas
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
- Switchgear and control unit separate from furnace in separate floor standing cabinet
Additional equipment
- 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
- 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
- Gastight 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
| Model | Tmax | Outer dimensions in mm | Max. outer tube Ø | Heated | Length constant | Tube length | Power | Electrical | Weight | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Horizontal design | °C³ | W² | D | H | /mm | length mm | temperature ΔT 10K | in mm | kW | connection* | in kg |
| RHTH 120/150/.. | 1600 or | 470 | 550 | 640 | 50 | 150 | 50 | 470 | 5.4 | 3-phase¹ | 70 |
| RHTH 120/300/.. | 1700 or | 620 | 550 | 640 | 80 | 300 | 100 | 620 | 9.0 | 3-phase¹ | 90 |
| RHTH 120/600/.. | 1800 | 920 | 550 | 640 | 120 | 600 | 200 | 920 | 14.4 | 3-phase¹ | 110 |
| Model | Tmax | Outer dimensions in mm | Max. outer tube Ø | Heated | Length constant | Tube length | Power | Electrical | Weight | ||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Vertical design | °C³ | W | D | H² | /mm | length mm | temperature ΔT 10K | in mm | kW | connection* | in kg |
| RHTV 120/150/.. | 1600 or | 570 | 650 | 510 | 50 | 150 | 30 | 480 | 5.4 | 3-phase¹ | 70 |
| RHTV 120/300/.. | 1700 or | 570 | 650 | 660 | 80 | 300 | 80 | 630 | 10.3 | 3-phase¹ | 90 |
| RHTV 120/600/.. | 1800 | 570 | 650 | 960 | 120 | 600 | 170 | 880 | 19.0 | 3-phase¹ | 110 |
| ¹Heating only between two phases *Please see page 70 for information on mains voltage ²Without tube ³Tmax is reached outside the tube. Realistic working temperature inside the tube is approx. 50 °C lower. | |||||||||||





