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

Sale Price: Starting at USD$2,886.00
If you are international, please click this.
Transported by LTL Freight (Truck)

Product Options

UL/CSA/CE Certifications:
Tube size and voltage:
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

emperature 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.

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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1. Prices listed online are valid for the US market and who pay by credit card only. There will be extra charges for shipping & handling. Prices vary from country to country.
2. We may add extra charges for paper orders and NET 30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.