High-Temperature Tube Furnaces for Horizontal or Vertical Operation up to 1800 °C
By using different gas supply systems, operations can be performed under non-flammable or flammable protective or reactive gases or under vacuum.
Function and equipment
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)
Additional equipment
Additional Equipment
- Charge control with temperature measurement in the working tube
- Three-zone control for optimization of temperature uniformity (only horizontal tube furnaces RHTH)
- Gas supply system 2 for non-flammable process gas
- Gas supply system 4 for hydrogen operation
- Vacuum package to evacuate the working tube
- Process control and documentation via VCD software package for monitoring, documentation and control
Technical specifications
Model Horizontal design | Tmax1 | Outer dimensions3 in mm | Max. outer tube Ø | Heated length | Length constant temperature1 +/− 5 K | Tube length | Connected load | Electrical | Weight | |||
---|---|---|---|---|---|---|---|---|---|---|---|---|
in mm | ||||||||||||
in °C | W2 | D | H | in mm | in mm | single zoned | three zoned | in mm | in kW | connection | in kg | |
RHTH 50/150/.. | 1600 or | 530 | 480 | 640 | 50 | 150 | 50 | 70 | 380 | 5.8 | 3-phase4 | 70 |
RHTH 80/300/.. | 1700 or | 680 | 550 | 640 | 80 | 300 | 100 | 150 | 530 | 9.4 | 3-phase4 | 90 |
RHTH 120/600/.. | 1800 | 980 | 550 | 640 | 120 | 600 | 200 | 300 | 830 | 14.8 | 3-phase4 | 110 |
Model | Tmax1 | Outer dimensions3 in mm | Max. outer tube Ø | Heated length | Length constant temperature1 +/− 5 K | Tube length | Connected load | Electrical | Weight | ||
---|---|---|---|---|---|---|---|---|---|---|---|
Vertical design | in °C | W | D | H2 | in mm | in mm | in mm | in mm | in kW | connection | in kg |
RHTV 50/150/.. | 1600 or | 610 | 700 | 1130 | 50 | 150 | 30 | 380 | 5.8 | 3-phase4 | 70 |
RHTV 80/300/.. | 1700 or | 680 | 700 | 1280 | 80 | 300 | 80 | 530 | 10.7 | 3-phase4 | 90 |
RHTV 120/600/.. | 1800 | 680 | 700 | 1580 | 120 | 600 | 170 | 830 | 19.4 | 3-phase4 | 110 |
1Values outside the tube. Difference to temperature inside the tube up to + 50 K 2Without tube 3External dimensions vary when furnace is equipped with additional equipment. Dimensions on request. 4Heating only between two phases |
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Further products
Catalog
A complete overview of our extensive range of furnaces, ovens and accessories for the laboratory can be found in our “Laboratory” catalog.