Nabertherm Rotary Tube Furnace RSRC 80/500/11

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The RSRC rotary tube furnaces are particularly suitable for processes where continuously running batch material is heated for a short time. The rotary tube furnace is positioned slightly inclined heated-up to the target temperature. The material is then continuously supplied at the upper end of the tube. It passes through the heated area of the tube and falls on the lower end out of the tube. The time of heat treatment results from the inclination angle, the rotational speed and the length of the working tube, as well as from the flow properties of the batch material. Equipped with the optional closed loading system for 5 liter charge material incl. receptacle, the rotary tube furnace can also be used for processes under protective gas or vacuum.

The RSRC rotary tube furnaces are particularly suitable for processes where continuously running batch material is heated for a short time.

The rotary tube furnace is positioned slightly inclined heated-up to the target temperature. The material is then continuously supplied at the upper end of the tube. It passes through the heated area of the tube and falls on the lower end out of the tube. The time of heat treatment results from the inclination angle, the rotational speed and the length of the working tube, as well as from the flow properties of the batch material.

Equipped with the optional closed loading system for 5 liter charge material incl. receptacle, the rotary tube furnace can also be used for processes under protective gas or vacuum.

Depending on process, charge and required maximum temperature, different working tubes made of quartz glass, ceramics or metal are used (see page 50). This rotary tube furnace is therefore highly adaptable for different processes.

– Tmax 1100 °C

  • Working tube made of quartz glass open at both sides
  • Thermocouple type K

– Tmax 1300 °C

  • Open tube made of ceramics C 530
  • Thermocouple type S

-Heating elements on support tubes provide for free radiation
-Dual shell housing made of sheets of textured stainless steel
-Only fiber materials are used which are not classified as carcinogenic according to TRGS 905, class 1 or 2
-Adjustable drive of approx. 2-45 rpm
-Digital display unit for the tilting angle of the rotary tube furnace
-Beltless drive and split-type furnace housing (opening temperature < 180 °C) provide for very easy tube removal
-Compact system, rotary tube furnace positioned on a base frame with

  • Manual spindle drive with crank to preset the tilting angle
  • Switchgear and controls integrated
  • Castors

-Defined application within the constraints of the operating instructions
-NTLog Basic for Nabertherm controller: recording of process data with USB-flash drive

Additional equipment

-Three-zone control for the optimization of temperature uniformity
-Temperature display unit in the working tube with measurement by means of an additional thermocouple
-Charge control by means of an additional thermocouple in the working tube
-Different gassing systems with good flushing of the charge with process gas (also possible with hydrogen) in counterflow (only in combination with feeding system below)
-Vacuum design, up to 10-2 mbar depending on the applied pump
-Vibrating channel and extension piece on the rotary tube for convenient material supply/removal, suitable for processes in normal atmosphere
-Charging system for continuous material transport, consisting of:

  • Stainless steel funnel incl. electric vibration generator to optimize the material feeding into the working tube
  • Electrically driven screw-conveyor at the inlet of the working tube with 10, 20 or 40 mm pitch and adjustable speed between 0.28 and 6 revolutions per minute, different gear transmissions for other speeds on request
  • Collecting bottle made of laboratory glass at the outlet of the working tube
  • Suitable for operation in gas atmosphere or vacuum

-Working tubes made of differents materials
-Quartz glass batch reactors, Tmax 1100 °C
-Higher temperatures up to 1500 °C available on request
-PLC controls for temperature control and the control of connected aggregates such as gearshift and speed of –the screw-conveyor, speed of the working tube, switching of the vibration generator, etc.
-Process control and documentation via VCD software package or Nabertherm Control Center (NCC) for monitoring, documentation and control

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