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1100C Quartz Tube Furnace (2" Dia.) with Temp. Calibrator and Vacuum Pump - GSL-1100X-50-LVT-LD

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GSL-1100X-50-LVT-LD vacuum tube furnace is ready to pass UL or CSA certification (UL61010 or SPE1000) on the customer side at customer cost tube furnace for heating samples up to 1100°C. The right side of the furnace system is composed of a KF25 Gas Outlet with Digital Vacuum Gauge connected to Mechanical Pump with Exhaust Filter. The 1/4'' barbed gas inlet on the left, allows the furnace to heat samples in vacuum up to 1E-2 Torr or with flowing gas. In addition, an OMEGA 1/4’’ O.D K Type Thermal Couple is included for attaching to the left flange. It can be inserted into the tube to accurately measure the sample’s temperature by the readout from the OMEGA Calibrator. The built-in precision temperature controller will provide up to 30 segments of heating and cooling steps with +/- 1 °C accuracy.
Furnace Structure
  • Energy-saving high purity Al2O3 fibrous insulation liner
  • Stainless steel shells with adjustable height stand
  • 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 muffle furnace      Fixing Knobs for Position Adjustment
Power 1500W
Voltage AC 110V or AC 220V 50/60 Hz  -- please select the voltage in the option bar
Working Temperature
  • Max. Temperature: 1100 °C (< 1 hr)
  • Continuous working temperature: 1000 °C
Heating Rate Max. Heating Rate: 10°C /min
Temperature Distribution     
Heating Zone 
  • Heating Zone length: 8" (200mm) 
  • Constant Temperature Zone: 100mm (+/-1°C @ 1000 °C)
Temperature controller
  • PID automatic control and auto-tune function.
  • 30 programmable segments for precise process
  • Built-in protection for overheated and broken Thermal couple. 
  • Temperature Accuracy: +/- 1 °C
  • K-type thermal couple: K type 18" L x 1/4"Dia with Alloy sheath and Male Plug for Calibration up to 1335C
Temperature Calibrator
Heating Elements Fe-Cr-Al Alloy doped by Mo
Tube Size and Materials
  • Quartz Tube with OD: 50;  ID 43:  Length: 600mm
  • Two fibrous ceramic tube blocks are included for blocking heat radiation from the inside tube. (Ceramic blocks must be fully inserted into the furnace chamber before heating)
  • Quartz blocks (optional) are ideal for cleaner and higher vacuum efficiency.
          Click here to choose a crucible
Vacuum Sealing Flanges Stainless Steel Vacuum Flanges (Left with 1/4 barb fitting, Digital Vacuum Gauge and Thermocouple feedthrough, right with KF25 port and Right Angle Valve)
Fitting Ports
Vacuum Pump and Vacuum Level
  • Double Stage Rotary Vane Vacuum Pump EQ-FYP-Pump (156L/m) with oil trap, Exhaust Filter, Bellow& KF-D25 Inlet and KF25 Clamp are included.
  • Vacuum Pressure can reach 1E-2 Torr ( 50 m-torr) 
  • 10^-5 torr can be reached by molecular pump, click the picture below to order
Dimensions 10" x 15" x 16"   (26 x38 x40 cm) (D x H x W) (Click here for details)
Net Weight 100 lbs
Shipping Dimensions 40"(L) x 26"(W) x 35"(H)
Shipping Weight 180 lbs
Warranty One-year limited warranty (Consumable parts such as processing tubes and o-rings are not covered by the warranty, please order the replacement at related products below.) 
  • CE Certified
  • NRTL  or CSA certification is available upon request at 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. Click here to learn the installation of a gas regulator.
  • Vacuum limit definition for all quartz tube furnaces: * Vacuum pressures may only be safely used up to 1000°C
  • The flow rate for gases should be limited to<200 SCCM (or 200ml/min) for reducing thermal shocks to the tube
  • Please click here to see our typical temperature profile calibration results at various temperatures.
  • In order to obtain accurate temperature inside the tube furnace, please click here to learn how to calibrate the temperature on your own.
  • How to set up a tube and vacuum flange for MTI tube furnaces.
Operation Instructions


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