Browse Categories

1650ºC Bridgman Furnace for Directional Solidification of Polycrystalline Ingots - EQ-SKJ-BG1650-LD

Please email to for lead time
Item Number: EQ-SKJ-BG1650-LD

EQ-SKJ-BG1650 is a 1650°C max. Bridgman furnace for directional solidification of Polycrystalline Ingots up to 37mm diameter. Three individual controlled heating modules & speed adjustable cooling fans at furnace exit provide advantages to creating larger temp. the gradient at the melt/crystal interface as needed. Automatic crucible retrieving system enables the most convenient way for sample loading/unloading. Optional crucible rotation stage can be added at additional cost for single crystal ingot growth. 

Basic Specifications:

Advanced Features

  • Three stacked heating modules with independent temperature measurement and control enable the flexibility of creating various temperature gradients along the length of the heated area;
  • Two-speed adjustable cooling fans with TC at the exit of the furnace allow better control over the temperature gradient at the melt/crystal interface; 
  • φ42mm Alumina sample pulling stage with TC attachment for accurate temperature monitoring of the crucible on top and generate instant temperature plot;
  • Electric elevated crucible stage enables an automatic and convenient sample loading / retrieving;
Power Requirements
  • 220VAC single phase 50/60Hz
  • 9.5KW
Working Temperature 
  • Heating Element: Silicon molybdenum rod
  • Max. Working Temperature: 1650°C ( <1hr)
  • Continuous Operating Temperature: 1600°C
 Processing Tube & Flange
  • High purity alumina furnace tube, Size: φ80mm O.D. x 1000mm L
  • A pair of stainless steel flange is connected to both end of the processing tube which allows for inert gas purging or vacuum during the crystal growing process
Sample Stage
  • φ42X40mm H Alumina Sample Stage
  • B type thermocouple insert from the bottom of the sample stage for accurate temperature measurement of the crucible
Crucible Retriving Mechanism
  • Automatic sample retrieving system for easy crucible loading / unloading, 
  • 700mm max. travel distance
 Heating Zones Three heating zones with independent temperature measurement and control
  • Three zones: 300mm (12") long in total, please click bottom left picture for more size info;
  • 100mm long for each zone, please click bottom right picture for more size info;
Temperature Control
  • Three PID temp. controller with 30 programmable segments for precise control of heating, cooling rate and dwell time.
  • Built-in overheating & broken thermocouple protection.
  • European Temperature controller, with +/- 0.1 ºC temperature accuracy.
  • Three B type thermocouples (one for each zone).
Cooling Fans One speed adjutable cooling fans are installed at the bottom exit of the furnace
 Furnace Travel Distance & Speed
  • As the furnace heater moves upward, the crucible is moving toward the bottom exit of the furnace where the lower temperature is seen. 
  • The maximum travel distance of the furnace heater is 200 mm. 
  • Travel speed: 0.03-3 mm/hr
 Vacuum Pump (Not included)
  • 10E-2 torr via dual stage mechanical vacuum pump (bottom right picture)
  • 10E-5 torr via Turbopump (bottom left picture) 
  • The vacuum pump is optional. Please click here to choose a vacuum pump. 
Controller stage: 860mm L x 600mm W x 1220mm H
Furnace stage: 1170mm L X 910mm W X 2500mm H
Shipping Weight & Dimensions
  • 1) 3225 lbs, 83x48x86"
  • 2) 751 lbs, 49x41x58"
Installation Video     
    Boron Nitride
Optional & Related Products
  • For single crystal growth, the rotation of crucible stage is needed, additional cost will apply. Please contact our engineering team for more information.
  • A board selections of crucible materials: Boron Nitride; Alumina; Zirconia; Graphite....
        Alumina      Boron Nitride  Graphite CrucibleGraphite   Zirconia           
  • Grown crystal boules:   Al, Ag, Au, Cu, Mg, Ni 

Related Products

Shopping Cart
Your cart is empty.
Please clear the browsing history before ordering the product. Otherwise, availability and price are not guaranteed.
Mailing Lists
MTI sponsorships:
MTI Sponsors Thermoelectrics Workshop

MTI-UCSD Battery Fabrication Lab

MTI-VISTEC Cylindrical Cell  Pilot Line

MTI Sponsors the Postdoctoral Awards

MTI and Celgard have successfully reached the settlement under court for the litigation on patent and trademark

Upcoming Shows:

2019 MRS Fall Dec 1 - 6 Boston MA Booth 901

AABC Europe Jan 12 - 16 Wiesbaden Germany

TMS 2020 Feb 23 - 27 San Diego CA Booth 301

APS March Meeting March 2 - 6 Denver CO

Recent Attended Shows:
236th ECS Meeting Oct 13 - 17 Atlanta GA Booth 200

MS&T 2019 Sep 29 - Oct 3 Portland OR Booth 614

ICT/ACT 2019 Jun 30 - July 4 Gyeongju South Korea

Click here to see our past conferences


1. Prices listed online are valid for US market and whom pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor cost.
3. The prices listed are subject to change without notice.