Horizontal and Split tube furnaces ST-SP

Hobersal’s ST SP design split tubular furnace, versatile and compact up to 1200ºC and 1300ºC


The ST SP tube furnace series are split tube furnaces with a new modern, compact and versatile design with maximum temperatures from 1200ºC and 1300ºC, Kanthal heating elements surrounding the tube on 6 sides and high quality and high density thermal insulation that allow high heating rates and low energy consumption

ST SP tube furnaces let work in oxidizing atmosphere, inert or reduced atmosphere and vacuum with our gas and vacuum packages.


  • Maximum temperatures of 1200ºC and 1300ºC
  • Diameters from 20 mm and 120 mm
  • 200, 400, 600, 800 and 1000mm heating zones
  • Heated zones: 1, 2, 3 and 5 independent zones
  • Kanthal Heating elements on support tubes provide for free radiation
  • Ramp programmer up to 64 segments
  • Heating pilot indicator light
  • Solid state relays provide for low noise operation
  • High density insulation for energy savings
  • Air chamber to prevent surface overheating
  • Fast heating and cooling
  • Thermocouples type K (1200ºC) and S (1300ºC)
  • Fan in control panel to protect the electrical parts

Additional equipment:


  • Eurotherm EPC 3016 programmer (10 programs – 25 segments) + itools logging software (allows curve downloads in Excel format) via Ethernet
  • Nanodac programmer ( 100 programs) USB and Ethernet entry + itools logging software (allows curve downloads in Excel format)



  • Water-cooled vacuum flanges for inert or reduced atmosphere and vacuum up to x10-5Mbar
  • Vacuum pumps up to 1Mbar, x10-2Mbar and x10-5Mbar (Leybold)
  • Inert, reducing and flammable gas supply systems (Manual, semi-automatic and by MFC – mass flow controllers)
  • Ceramic and fibre plugs for working in atmosphere
  • OTP (Over temperature protection)
  • Radiation shields
  • Crucibles and boats
  • Rods for sample insertion and extraction
  • Gloves, crucible tongs…

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