Furnace Structure

1. Heating element center spiral type SiC filament ( 25 OD x 20 ID x 400 L mm )
2. SiC sheath: quartz tube ID 30 × OD 36 mm × 622 mm.
3. Sample layer: 36 ID × 58 OD × 622 mm L with vacuum sealed flange.
4. Gas-cooled layer: 58ID × 90 OD × 622mm L to keep outside wall < 30ºC

               

•  208 - 240 VAC, single phase 
•  2000W

Working Temperature

• Max. Temperature: 300 °C (< 1 hr)
• Continuous working temperature: 250 °C

Heating Rate

• Max. Heating Rate: 10°C /min

• Heating Zone Length: 1000 mm 
• Constant Temperature Zone: 700 mm within +/- 2oC

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 

• Special flange for three layers tube is included
• 1" flange is included for center tube
• 1" Flange Set 

• 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

• Limited by vacuum pump
  • 50 mtorr can be achieved by mechanical pump
  • 10^-5 torr can be reached by molecular pump

                        

Digital Pressure Gauge (optional)

• CE Certified
• All electric parts are UL / MET / CSA certified
• The furnace is ready to pass UL or CSA certification (UL61010 or SPE1000) on customer side at customer cost.

Application Notes

Click here to learn the installation of a gas regulator

• Tube furnaces with quartz tubes are designed for using under vacuum and low pressure < 0.2 bars / 3 psi / 0.02 MPa
• 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 obtain accurate temperature inside tube furnace, please click here to learn how to calibrate the temperature on your own.
• How to set up a ceramic tube and vacuum flange for MTI tube furnaces.