Browse Categories

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

Click to enlarge
Please email for lead time
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 compact 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 
 ( C type Thermocouple is consumable, pls click the picture order spare )
Temperature Control
  • 30 segment Digital Program Controller provides a 4-20 mA signals to an SCR power supply.
  • Built in protection from Over-temperature and thermal couple broken
  • +/- 1°C temperature accuracy
  • PC control software and 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 gauge 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 the 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 the USA and is subject to restriction for export; Please click link below to see export restriction
  • 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 the gas cylinder to limit the pressure to below 3 PSI for safe operation. Click here to learn the installation of a gas regulator.

Related Products

Shopping Cart
Your cart is empty.
Please clear the browsing history before ordering the product. Otherwise, availability and price are not guaranteed.
Mailing Lists
MTI sponsors MRS Postdoctoral Awards:
MRS Fall 2016 Postdoctoral Awards Nomination

MRS Past Postdoctoral Award Recipients

Upcoming Shows:

Beyond Lithium Ion IX May 24 -28 Richland, WA

229th ECS Meeting & Exhibition May 29 - Jun 2, San Diego, CA 

Recent Attended Shows:

Next Generation Energy Storage 2016 April 18 - 20 San Diego, CA

MRS Spring Meeting 2016 Mar 28 - 31 Phoenix, AZ

APS 2016 Meeting Mar 14-18, Baltimore, MD

Pittcon 2016 Conference & Expo Mar 7-10, 2016, Atlanta, GA

TMS 2016 145th Annual Meeting & Exhibition Feb 15-17, 2016, Nashville, TN

Click here to see our past conferences


1. Prices listed online are valid for US market and whom pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor cost.
3. The prices listed are subject to change without notice.