The RD 30/200/11 tube furnace impresses with its very good price-performance ratio, particularly compact external dimensions and its low weight. This all-rounder is equipped with a working tube, which also serves as support for the heating wires. The working tube is therefore part of the furnace heating, with the advantage that the tube furnace reaches very high heating speeds. The furnace is designed for horizontal use up to 1100 °C.

Standard Equipment

  • Tmax 1100 °C
  • Dual shell housing made of textured stainless steel sheets with additional fan cooling for low surface temperature
  • Exclusive use of insulation materials without categorization according to EC Regulation No. 1272/2008 (CLP)
  • Inner diameter of the tube: 30 mm, heated length: 200 mm
  • Ceramic working tube C 530 including two fiber plugs for operation under air
  • Thermocouple type K (1100 °C)
  • Solid state relays provide for lownoise operation
  • Heating wires wound directly around the working tube resulting in very fast heat-up rates
  • Defined application within the constraints of the operating instructions
  • Controller R7


Model Tmax1 Outer dimensions2 in mm Inner tube Ø Heated length Length constant Connected Heating time3 Electrical Weight
in °C W D H in mm in mm temperature1 +/− 5 K in mm load in kW in min connection* in kg
RD 30/200/11 1100 350 200 350 30 200 65 1.5 20 1-phase 12
1Values outside the tube. Difference to temperature inside the tube up to + 50 K*Please see page 75 for more information about supply voltage
2External dimensions vary when furnace is equipped with additional equipment. Dimensions on request.
3Heating time of the empty and closed furnace up to Tmax −100 K (connected to 230 V 1/N/PE)