ZHENGZHOU HENGTONG FURNACE CO,. LTD
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300C Max. 90mm O.D Tube Furnace for High Magnetic Field
300C Max. 90mm O.D Tube Furnace for High Magnetic Field
  • 300C Max. 90mm O.D Tube Furnace for High Magnetic Field
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The Furnace is a 90mm OD x 58mm ID  300ºC Max. Tube furnace with vacuum/gas insulated jacket. Such furnace is constructed by SS316L material which has nearly zero magnetic permeability. It is dedicated for use with superconducting high field magnets for material annealing.

SPECIFICATIONS:

Furnace Structure
  • The tube furnace has three layers

  • Heating element:  center spiral type SiC filament ( 25 OD x  20 ID x 400 L mm )

  • SiC sheath: quartz tube  ID 30 × OD 36 mm × 622 mm.

  • Sample layer:  36 ID × 58 OD × 622 mm L with vacuum sealed flange.

  • Gas-cooled layer: 58ID × 90 OD × 622mm L to keep outside wall < 30ºC

Power

208 - 240 VAC, single phase 

 2000W

Working Temperature
  • Max. Temperature: 300 °C (< 1 hr)

  • Continuous working temperature: 250 °C

Heating RateTemperature ControllerMax. Heating Rate: 10°C /min
Heating Zone
  • 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

Vacuum Flange (Sold Separately)
  • Special flange for three layers tube is included

  • 1" flange is included for center tube

Fitting Ports (Sold Separately)
  • 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 theKF25 adapter 

  • 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

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)
  • A gas-type independent (above 10mbar) 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 incorrect reading of gas pressures due to gas-type dependency.
Compliance
  • 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
  • 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. 

  • 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



The Furnace is a 90mm OD x 58mm ID  300ºC Max. Tube furnace with vacuum/gas insulated jacket. Such furnace is constructed by SS316L material which has nearly zero magnetic permeability. It is dedicated for use with superconducting high field magnets for material annealing.

SPECIFICATIONS:

Furnace Structure
  • The tube furnace has three layers

  • Heating element:  center spiral type SiC filament ( 25 OD x  20 ID x 400 L mm )

  • SiC sheath: quartz tube  ID 30 × OD 36 mm × 622 mm.

  • Sample layer:  36 ID × 58 OD × 622 mm L with vacuum sealed flange.

  • Gas-cooled layer: 58ID × 90 OD × 622mm L to keep outside wall < 30ºC

Power

208 - 240 VAC, single phase 

 2000W

Working Temperature
  • Max. Temperature: 300 °C (< 1 hr)

  • Continuous working temperature: 250 °C

Heating RateTemperature ControllerMax. Heating Rate: 10°C /min
Heating Zone
  • 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

Vacuum Flange (Sold Separately)
  • Special flange for three layers tube is included

  • 1" flange is included for center tube

Fitting Ports (Sold Separately)
  • 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 theKF25 adapter 

  • 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

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)
  • A gas-type independent (above 10mbar) 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 incorrect reading of gas pressures due to gas-type dependency.
Compliance
  • 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
  • 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. 

  • 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