1200°C Max. Small Bridgman Crystal Growth Furnace with Air-tight 80 mm Quartz Tube - SKJ1200BG

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 crystals under control atmosphere up to 1200oC

SPECIFICATIONS

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's responsibility Adjusting two heating zone's temperatures can create different thermal gradient profile Adjusting the furnace opening diameter also can change the thermal gradient A quartz tube (80mm O.D x 72mm I.D x 800mm L) is included with an 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 a 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  The bottom flange is driven by a DC motor up or down to load and unload the crucible  60 Diax 80 mm H graphite crucible is included ( click the link to order more) The crucible holder is built in the flange 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
Crucible & Holder	Quartz crucible:  Ø42 × Ø36 × 38 mm Quartz sample stage for crucible up to Ø43.5×18 mm
Control Panel	A 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 Eurotherm controllers and two K-type thermal couples are included with +/- 0.1 oC accuracy PID temperature control, with 24 temperature segments 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 is installed for controlling tube pressure at the constant from 0.01MPa - 0.02MPa Click the picture left to see the PC interface
Optional	10E-2 torr via dual-stage mechanical vacuum pump (Pic. 2) 10E-5 torr via Turbopump (Pic. 1)  The vacuum pump is optional. Please click here to choose a vacuum pump.  For oxygen-sensitive material, suggest using a recirculating gas purification system ( H2O, O2 < 1 ppm) to replace the turbopump (Pic. 3)   Pic. 1  Pic. 2  Pic. 3
Compliance	CE Certified NRTL certification is available upon request at an extra cost
Application Notes	In order to get better film coating, the substrate shall be treated by plasma cleaner (Please click on the first picture