Split-Type Tube Furnaces for Horizontal and Vertical Operation up to 1300 °C
By adding different gas supply packages, you can work in a protective gas atmosphere, with gases or in a vacuum.

Function and equipment
The tube furnaces of series RS .. can be used for horizontal and with optional frame for vertical operation. The split-type design makes it easy to change the working tube. It allows for a comfortable exchange of various working tubes (e.g. working tubes made of different materials).
Using a wide range of accessories, these professional tube furnaces can be optimally tailored for your process. By adding different gas supply packages, you can work in a protective gas atmosphere, with gases or in a vacuum. In addition to the convenient standard controllers, modern PLC controls can also be used to control the process.
Standard Equipment
- Tmax 1100 °C or 1300 °C
- Heated length from 250 mm to 1000 mm
- Maximum outer tube diameter up to 170 mm
- 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.
- Tabletop model, mounted horizontally on an external switchboard including controller
- 2 m connecting cable in a protective metal conduit
- Split-type design for simple insertion of the working tube (opening temperature < 180 °C)
- Ceramic working tube C 530 including two fiber plugs for operation under air
- Thermocouple type N (1100 °C) or type S (1300 °C)
- Solid state relays provide for lownoise operation
- Heating elements on support tubes provide for free radiation
- Controller with touch operation C550 (10 programs with each 20 segments)
- Defined application within the constraints of the operating instructions
- NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive
Additional equipment
Additional Equipment
- Frame for converting the furnace to vertical operation
- Tube adapter shells for the use of tubes with different diameters
- Charge control with temperature measurement in the working tube
- Three-zone control for optimization of temperature uniformity
- Cooling systems for accelerated cooling of the working tube and charge
- Gas supply systems 1,15 or 2 for non-flammable process gas operation
- Vacuum package to evacuate the working tube
- Process control and documentation via VCD software package for monitoring, documentation and control
Technical specifications
Model | Tmax1 | Outer dimensions2 closed, lying on the switchgear | Outer dimensions switchgear | Max. outer tube Ø | Heated length | Length constant temperature1 +/− 5 K | Connected load5 | Electrical connection | Weight | |||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
(RS-horizontal) in mm | in mm | in mm | ||||||||||||
in °C | W3 | D | H | W | D | H | in mm | in mm | single zoned | three zoned | in kW | in kg | ||
RS 50/250/11 | 1100 | 600 | 470 | 515 | 600 | 450 | 218 | 50 | 250 | 80 | - | 2,0 | 1-phase | 36 |
RS 120/500/11 | 1100 | 670 | 515 | 590 | 600 | 450 | 218 | 120 | 500 | 170 | 250 | 6,7 | 3-phase4 | 56 |
RS 170/750/11 | 1100 | 920 | 550 | 640 | 600 | 450 | 218 | 170 | 750 | 250 | 375 | 10,7 | 3-phase4 | 84 |
RS 170/1000/11 | 1100 | 1170 | 550 | 640 | 600 | 450 | 218 | 170 | 1000 | 330 | 500 | 13,8 | 3-phase4 | 97 |
RS 50/250/13 | 1300 | 600 | 470 | 515 | 600 | 450 | 218 | 50 | 250 | 80 | - | 2,0 | 1-phase | 37 |
RS 120/500/13 | 1300 | 670 | 515 | 590 | 600 | 450 | 218 | 120 | 500 | 170 | 250 | 6,7 | 3-phase4 | 56 |
RS 170/750/13 | 1300 | 920 | 550 | 640 | 600 | 450 | 218 | 170 | 750 | 250 | 375 | 12,1 | 3-phase4 | 85 |
RS 170/1000/13 | 1300 | 1170 | 550 | 640 | 600 | 450 | 218 | 170 | 1000 | 330 | 500 | 13,8 | 3-phase4 | 98 |
1Values outside the tube. Difference to temperature inside the tube up to + 50 K 2External dimensions vary when furnace is equipped with additional equipment. Dimensions on request. 3Without tube 4At 3-phase execution an N conductor ist required (3/N/PE) 5The connected load refers to the standard furnace and may increase for a furnace with additional equipment. For furnaces with connection options for multi-range voltages, the connected load applies to the highest permissible connected voltage. |
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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.