Kuwait University

A tube furnace is an electric heating device used to conduct syntheses and purifications of inorganic compounds and occasionally in organic synthesis. The design consists of a cylindrical cavity surrounded by heating coils that are embedded in a thermally insulating matrix. Temperature can be controlled via feedback from a thermocouple. Some digital temperature controllers provide an RS232 interface, and permit the operator to program segments for uses like ramping, soaking, sintering, and more. The turbo molecular pump fitted with the tube can provide vacuum in the tube. And also the gas regulators can provide gas to the tube in a controlled manner.


Tube Furnace Specifications

  • Tmax 1300 °C.
  • C Casing made of sheets of textured stainless steel.
  • Wear-free type S thermocouple.
  • Horizontal design.
  • Hinged design for simple insertion of the working tube.
  • Working tube made of ceramic C 530 with dimensions 80X70X1100mm.
  • Cascade controller with temperature measurement in the working tube and in the oven chamber.
  • Gas supply package for protective gas and vacuum operations.
  • Burst protector for heating elements and/or as support for the load.

Vacuum Pump Specifications

  • Pumping speed for N2 60 l/s
  • Attainable ultimate pressure range 10-7 mbar
  • Run-up time for the turbo molecular pump 1.5 minutes
  • Pumping speed of the diaphragm pump 0.7 m³/h
  • Ultimate pressure of the diaphragm pump 3 mbar


  • Energy-saving operation and a fast heating time due to low heat storage and heat conductivity.
  • Maximum temperature 13000C.
  • Nine multi stage heating programs.
  • Accurate temperature control with working tube and oven chamber temperature displays.
  • Automatically controlled gas supply with solenoid valves on the gas supply system, which can be switched on and off through a controller with programmable extra functions.
  • Maximum vacuum level of 10-6 mbar.


  • material science
  • Thermolysis reactions
  • Annealing
  • Ashing
  • Calcination
  • Curing
  • Drying
  • Fusion
  • Loss on drying/Ignition
  • Sintering

For more information about the manufacturer please visit www.nabertherm.com

High-Temperature Tube Furnace

Nabertherm (RS 80/750/13)