Carbolite HZS 12/900 3 Zone Horizontal Split Tube Furnace

Code: HZS 12/900
  • Three Zone Horizontal Split Tube Tube Furnace
  • 1200C
  • 900mm Heated Length

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Carbolite HZS 12/900 3 Zone Horizontal Split Tube Furnace heated length 900mm, supplied without work tube, maximum outer diameter 110mm.

Carbolite Gero HZS 12/900 is a three zone bench mounted furnace that opens with hinges, allowing a work tube to be placed inside, removing insertion by the end bores as with a standard furnace. This allows larger tubes or vessels to be accommodated with flanges or end fittings and makes changing work tubes over easier. Adaptors allows the flexibility of accepting tubes lower than the maximum overall diameter of 110mm into the furnace.

The furnace heats using free wire radiating elements inside the furnace body, this and the use of a separate work tube reduces the probability of element damage. Supplied as above with separate control box connected by 2 metre conduit. Controller supplied is 301 digital PID allowing single ramp and process timer. Can be changed to allow 8 or 20 ramps with storage.

Maximum temperature is 1200C, with a continuous operating temperature of 1100C.  Heat up time is 45 minutes. Uniform length is 750 mm plus or minus 5c.  Maximum power consumption is 4500 watts.

Vacuum formed insulation assists uniformity giving fast heating and cooling. This three zone model offers superior uniformity with compensation for heat loss at the ends of the furnace, by two end zones 150mm length controlled by back to back thermocouples.


  • Over temperature protection used if furnace has expensive contents or is left unattended for large periods of time.
  • Work tubes varying lengths and diameters and materials – shock and chemically resistant.
  • Insulation plugs, Work Tube Seals  & Radiation shields to increase uniformity, combat heat loss and for atmosphere retention
  • Pumps are offered for vacuum application: rotary vane pump or turbo molecular pump.
  • L Stand allows for Vertical use
  • Extension of control module to 6 metres
  • Three Equal length Zones
  • Re-transmission of set point for cooling

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Title Size
HST-HZS Brochure 204 KB
HST VST Manual 216 KB

Additional information

Weight 0.09 kg