Compact Tube Furnaces

The RD tube furnaces convince with their unbeatable price-performance ratio, very compact outer dimensions and their low weight. These all-rounders are equipped with a working tube which also serves as support for the heating wires. Thus, the working tube is part of the furnace heating which has the advantage that the furnaces achieve very high heat-up rates. The tube furnaces can be supplied for 1100 °C or 1300 °C. Both models are designed for horizontal application. If the customer requires protective gas atmosphere, a separate working tube incl. gas supply system 1, e.g. made of quartz glass, must be inserted in the working tube.



Category: .
  • Tmax 1100 °C or 1300 °C
  • Housing made of sheets of textured stainless steel
  • Inner diameter of the tube: 30 mm, heated length: 200 mm
  • Working tube made of C 530 material including two fiber plugs as standard
  • Thermocouple type K (1100 °C) or type S (1300 °C)
  • Solid state relays provide for low-noise operation of the heating
  • Heating wires wound directly around the working tube resulting in very fast heat-up rates
  • Defined application within the constraints of the operating instructions
  • Additional equipment
  • Over-temperature limiter with adjustable cutout temperature for thermal protection class 2 in accordance with EN 60519-2 as temperature limiter to protect the furnace and load
  • Gas supply system for non-flammable protective or reactive gas
Model Tmax Outer dimensions in mm Inner Tube Heated Length COnstant Connected Minutes Electrical Weight
  °C1 w d h in mm length in mm temprature +/-5K in mm1 load kW to Tmax2 connection in kg
RD 30/200/11 1100 350 200 350 30 200 65 1.5 20 1-phase 12
RD 30/200/13 1300 350 200 350 30 200 65 1.5 25 1-phase 12
Article No. Description
Exhaust systems/Accessories
631000140 Chimney for connection to an exhaust pipe
631000812 Chimney with fan, to remove exhaust gas from the furnace better.
631000166 Catalytic converter with fan for removal of organic components from the exhaust air.
699000408 Round saggar (Ø 115 mm x 35 mm) for furnaces LHT/LB, Tmax 1650 °C
699000984 Round lid for furnaces LHT/LB, Tmax 1650 °C
699000279 Square saggar for furnaces HTC and LHT, Tmax 1600 °C
699000985 Square lid for furnaces HTC and LHT, Tmax 1600 °C
493000002 Various tongs for easy loading and unloading of the furnace. (300mm)
493000003 Various tongs for easy loading and unloading of the furnace. (500mm)