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1100°C Tube Furnace w/ Vacuum Flange (Optional 1-2") & Programmable Temp Controller - GSL-1100X-LD

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GSL-1100X is a quartz tube furnace (1~2" diameter) designed for heating up to 1100°C with a programmable temperature controller. The vacuum flanges with valves, vacuum pressure gauge, and quartz tube are included for immediate use. The furnace has a solid round heating chamber that has a more uniform temperature zone and can be set up in both vertical and horizontal positions to meet various applications.

Furnace Structure

  • Energy-saving high purity Al2O3 fibrous insulation liner
  • Stainless steel shells with adjustable height
  • Adjust three knobs on the back to flexibly change the furnace's vertical position within travel distance (from control box platform to lower end of the chamber): 4.5'' ~ 12'' (without hanger and supporter) 
  • Multiple configurations for various thermal processing needs
Multi-position adjustable   Using as a Vertical furnace    Knobs for Position Adjustment

Power & Current Rating

  • AC 110V single-phase or AC 220V (Please select the tube size & voltage in the options bar)
  • 10 Amps for 220V version
  • 15 Amps for 110V version (15Amps Fuse)
  • Total Power: 1.2KW

Working Temperature

  • Max. Temperature: 1100°C  (< 1 hr)
  • Continuous working temperature: 1000°C
  • Max. Heating Rate: 10 °C /min
Temperature Distribution              
Heating Zone
  • Heating Zone Length: 12" (300mm)
  • Constant Temperature Zone:  3.1" (80mm)

Temperature Controller

  • PID automatic control and auto-tune function.
  • 30 programmable segments for precise thermal processing.
  • Built-in protection for the over-heated and broken thermocouple. 
  • Temperature Accuracy: +/- 1°C
  • K-type thermocouple.

Advanced Temperature Controller (Optional)

  • For 110V: MTS02-Y Temperature control software kit (for YUDIAN series controllers) + 15" laptop package is available at the options bar. Click for detailed information about the MTS02-Y software kit.
  • You may upgrade the temperature controller to the Eurotherm 32H8 Temperature Controller which is fully compatible with LabVIEW. This package includes a Eurotherm 32H8 programmer, a communication cable (RS485 - USB), and a software CD. Click the pic below to view the full spec of the Eurotherm 32H8 temperature controller.

Heating Elements

Fe-Cr-Al Alloy doped by Mo

Processing Tube

1" O.D x 0.87" I.D x 24" L Quartz tube or 2.0" O.D x 1.85" I.D  x 24" L quartz tube

(Please select the tube size and the rated voltage in the options bar) 
  • Two fibrous ceramic tube blocks are included for blocking heat radiation generated from the tube center. (Ceramic blocks must be fully inserted into the furnace chamber before heating).
  • Quartz blocks (optional) are ideal for clean processing environments and higher vacuum efficiency.

            Click here to choose a crucible

Vacuum Flange
1" Flange Set     
2" Flange Set
  • Two choices of stainless steel flange with vacuum gauge and valves
    • 2" default flange with 1/4'' Bard fittings, 1/4'' tube feedthrough port (for 1/4" O.D thermocouple insert), and a KF25 vacuum port ( click the bottom right picture to see details)
    • 1" flange has no thermocouple insert (click the bottom left picture to see details)
  • Optional:
Fitting Ports
  • Both flanges will come standard with 3/8" barbed hose fittings
  • In order to increase the throughput and achieve a high vacuum, you may replace the standard barbed hose fitting with the KF25 adapter (please click the underline to order).
  • For supplying high-pressure gas, you may replace the standard barbed hose fitting with the 304SS 1/4" Swagelok® Tube Fitting x 1/4" BSPP Male Connector (please click the underline to order).        

Vacuum Pressure

  • 50 m-torr can be achieved by a mechanical pump
  • 10^-5 torr can be reached by molecular pump

Pressure Measurement / Monitoring

  • A mechanical Vacuum Gauge is included which measures within a pressure range of -0.1 to 0.15Mpa.  
  • Digital Pressure Gauge (optional): A gas-type independent (above 10 mbar) digital vacuum gauge with a wide range between 3.8x10-5 to 1125 Torr. Aside from greater measurement precision, this gauge reduces risks of chamber explosions caused by the incorrect reading of gas pressures due to gas-type dependency  


10"(L) x 15"(W) x 16"(H)   Clic picture  for details

Shipping Package Size 

40"(L) x 30"(W) x 30"(H)

Shipping Weight

100 lbs


One-year limited warranty with lifetime support (Consumable parts such as processing tubes, and O-rings are not covered by the warranty, please  order replacements at related products below.)


  • CE Certified
  • NRTL or CSA certification is available at an extra cost 
Application Notes
Click here to learn the installation of a gas regulator
  • Tube furnaces with quartz tubes are designed for use under vacuum and low pressure < 0.2 bars
  • Attention: A two-stage pressure regulator must be installed on the gas cylinder to limit the pressure to below 3 PSI for safe operation. 
  • Vacuum pressures may only be safely used up to 1000°C
  • The flow rate for gasses should be limited to 200ml/min for reducing thermal shocks to the tube
  • Please click here to see our typical temperature profile calibration results at various temperatures.  
  • To obtain accurate temperature inside the furnace, pls click here to learn how to calibrate the temperature 
Operation Instructions

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