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Compact Ultra-High Temperature Tube Furnace (25mm ID. 2000°C Max) with Digital Controller -- - GSL-2000X-25

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Item Number: GSL-2000X-25
Transported by LTL Freight (Truck)

EQ-GSL-2000X-25 is an ultra-high temperature furnace with 1" I.D x 6" L heating chamber up to 2000°C under inert gas for materials research. This compac furnace uses a special tungsten heating element design to reach high temperatures at very low power  (<3000W) . Precision digital controller provides stable temperature control via C Type thermocouple and SCR power supply.

Work Volume 1 zone
Cylindrical heated volume 25 mm diameter, 150 mm length
Operating Temperature 2000°C Maximum (short time < 30 minutes) under high purity (>=99.999%)1 atm Argon gas.
1900°C Max. for continuous under high purity (>=99.999%)1 atm Argon gas.

Temperature Stability +/- 1°C
Maximum Ramp Rates Heating Rate: 10°C/minute typical; 5°C/min at high temperatures
Cooling Rate: 10°C/minute typical; Slow/strongly temperature dependent at low temperatures
Operating Atmosphere 1 atm inert gas. or reducing gas at temperatures below approximately 2000°C.
Not suitable for high vacuum
Process Chamber Fiberous zirconia liner inside
water cold stainless steel chamber
Heating Element  Tungsten wire
Temperature Sensor Type C  thermocouple inserted from the furnace top 
Two C T/C included 
Temperature Control
  • 30 segment Digital Program Controller provides a 4-20 mA signals to a SCR power supply.
  • Built in protection from Over-temperature and thermal couple broken
  • +/- 1°C temperature accracy
  • PC control software anid interface is available at extra cost
Vacuum Fittings
  • Main chamber sealed with silicone rubber O-ring.  Outer seals standard KF seals.
  • KFD25 vacuum  port and gas inlet &outlet valve are built in
  • Vacuum guage installed
Water Cooling
  • Water cooled two end caps 
  • 30L/min water flow required
Sample holder Sample holder is driven by electric motor , and automatically move up and dow to make sample loading easy.
one 18 mm O.D x 16mm I.D tungsten disc is installed on bottom thermal block  for holding a crucible or sample directly

Power Supply SCR power supply, 20A,  VAC208 - 240, 50/60Hz, single phase power supply
4000W Max.   3000W operation
Utility Requirements

Overall Dimensions
800mm L × 750mm W × 1600mm H
Warranty One year limited with lifetime support (Consumable parts such as processing tubes, o-rings and heating elements are not covered by the warranty, please order the replacement at related products below.)
  • CE Certified
  • UL / MET / CSA Certification is available upon request, additional charges will apply
  • Temperature controller is MET and CE Certified
  • Transformer is UL Certified
Operation Instructions
Application Notes Please Click Underline to learn "Max. Working Temperature of Heating Elements of Tungsten , Tantalum,   Molybdenum  Under  Various Processing Gases".
Notice The furnace is made in USA and is subject to restriction for export; Please click link below to see export restriction
Warranty  One year limited with lifetime support (Consumable parts such as processing tubes, o-rings and heating elements are not covered by the warranty, please order the replacement at related products below.)
  • This high temperature furnace is only suitable sintering oxide ceramic or material which is not sensitive to oxygen.  Not suitable for carbon or materials sensitive to oxygen
  • Attention: A two stage pressure regulator must be installed on gas cylinder to limit the pressure to below 3 PSI for safe operation. Click here to learn the installation of a gas regulator.

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