Nika-M60

Automated system for sapphire single crystal growing by Kiropulos method - NIKA-M60

 



The system NIKA-M60 allows growing sapphire crystals up to 70 kg. A distinctive features of the machine are the direct high-precision weighting of the crystal, the precision control of the heater power, the mass measurement and control of the crystallizataion rate, the measurement of heat losses through structural components (using these data to optimize the crystallization process) as well as the video control and temperature measurement in the beginning of the crystal growing process.


 

 

  • Melting temperature, 0С 
  • up to 2200   
  • Crucible dimensions (diameter x height), mm 
  • 300 х 450 
  • Crystal mass, kg 
  • 70 
  • Range of weight sensor measurement, kg  
  • up to 72
  • Sensitivity of weight sensor, g  
  • not less than 1,0  
  • Rate of rod movement, mm/h:  
  •  from 0,1 to 3600
  • Rate of rod rotation, rpm  
  • from 1 to 20 
  • Rod operational stroke, mm  
  • 200 
  • Heating method 
  • resistive  
  • Installed power, kW  
  • 100 
  • Frequency, Hz  
  • 50 
  • Limit vacuum in growth vessel, Torr   
  • 1,5х10-5  
  • Cooling water flow rate, m3/h 
  • not less than 7 
  • Cooling water pressure, kPa 
  • not less than 200