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1200°C Max. Small Bridgman Crystal Growth Furnace with Air-tight 80 mm Quartz Tube - SKJ-BG-1200

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SKJ-BG-1200 is a small 1200ºC Bridgman crystal growth furnace with a 72 mm ID quartz tube and precision travel mechanism, which is designed for growing small size crystal under control atmosphere up to 1200oC


Vertical Two Zone Tube Furnace

  • Compact two zones split vertical tube furnace
  • Working Voltage:  208 - 240V selectable
  • Max. Power Consumption: 4.0 KW
  • Two Heating Zone: 100 mm L for each Zone, 200 mm L in total 
  • Max. heating temperature: 1200°C
  • Continuous working temperature: 1100°C
  • Two programmable digital temperature controllers which control two heating zone independently
  • Max. Temperature gradient: 1ºC/Cm
  • Finding a suitable thermal gradient is the user responsibility
  • Adjusting two heating zone's temperature can create different thermal gradient profile
  • Adjusting furnace opening diameter also can change the thermal gradient
  • Quartz tube (80mm O.D x 72mm I.D x 800mm L) is included with airtight flange)
Travel Mechanism

  • DC motor with precision screw drives the furnace up or down for crystal growth
  • Travel distance:  200 mm Max.
  • Travel speed range:  0.03 mm /hr. -  30 mm /hr. adjustable with +/- 1 micron accuracy ( standard)
  • Customized speed range is available upon request
Airtight Flanges
  • One pair of air-tight flanges is included for atmosphere control under vacuum
  • The top flange has a mechanical vacuum gauge and 1/4" gas inlet
  • The bottom flange has a KF25 vacuum port and 1/4" gas outlet 
  • Vacuum level:  10-2 torr by mechanical pump and 10-5 torr by a turbopump
  • Please click the picture below to order a vacuum pump
Control Panel
  • Touch screen control PC is included for control travel speed, travel distance,  temperatures of the furnace and crucible temperature separately, as well as gas pressure inside the tube.
  • Two Eurothermo controllers and two K type thermal couples are included with +/- 0.1 oC accuracy
    • One thermal couple controls the temperature of the furnace 
    • One thermal couple displays the temperature of the crucible at its bottom
  • One digital pressure sensor with solenoid valves are installed for controlling tube pressure at the constant from 0.01MPa - 0.02MPa
  • Click the picture left to see the PC interface
Product Dimensions   
  • CE Certified
  • NRTL certification is available upon request at an extra cost
  • One-year limited warranty with lifetime support
  • Consumable parts such as processing tubes, O-rings, and heating elements are not covered by the warranty
Operation Demo Video              
Application Notes
  • In order to get better film coating, the substrate shall be treated by plasma cleaner (Please click on the first picture 
Net Weight 105 kg (230 lbs)

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