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Czochralski Crystal Growth System up to 2100°C - SKJ-50CZ


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Item Number: SKJ50CZ
SKJ-50CZ is a CZ crystal growth system up to 2100°C and 2" crystals. The high-precision upper weighing device facilitates better control of crystal growth process including seed dipping, shoulder expansion, and steady growth.  The upper pulling mechanism ensures a minimum pulling speed of 0.03mm/h and a rotation speed of 1 rpm. The stainless steel water-cooled chamber, paired with a vacuum pump, can achieve a maximum vacuum of 3.75e-5 torr. It is designed to grow various oxides, metals, and other materials, such as sapphire, GGG, YAG, LaAlO3, Si, Ge, Cu, and more.

Customization for special technical requirements is available. 

SPECIFICATIONS:
Feature
  • Induction heating up to 2100°C
  • Upper weighing system for better growth control
  • Water-cooled stainless steel vacuum chamber
  • Pyrometer temperature measurements
Power
  • 480 (or 400) VAC, 3 phase, 50/60 Hz, 40 kW
Induction Heating
  • Power 35 kW
  • Frequency 1-20 kHz
  • Duty cycle 100%
Vacuum Chamber
  • 304 SS water-cooled vacuum chamber
  • Chamber size Ø500×700 mm
  • Observation window 80×300 mm
  • -0.1-0.5MPa mechanical diaphragm pressure gauge
  • 1/4" gas inlet and outlet
  • Pressure relief valve, < 3 psig
Ultimate Vacuum
  • 3.75e-5 torr
Temperature Measurement
  • Pyrometer for temperature measurement of the melt. 
  • Eurotherm 3000 series temperature controller
Pulling Mechanism
  • Travel distance 200 mm
  • Pulling speed 0.03 - 30 mm/hr
  • Rotation speed 1 - 60 rpm
Weighing System
  • Upper weighing system with Eurotherm PID control module for consistent and reproducible crystal growth
  • Capacity 5000 g
  • Accuracy 0.1 g
Control System
  • Integrated LabVIEW software for control, monitoring, and data logging. 
  • Programmable pulling / rotation speed
  • Pressure monitoring and alarm
  • Induction power control 
  • Weighting system with PID parameters
  • Data logging 
Crucible System (Optional)
  • Maximum crucible size Ø100×80 mm
  • Maximum crystal size, Ø2"×100 mm
  • Please contact MTI for lager crystal growth, up to 4"
Cold Crucible Growth System (Optional)
  • The system is also compatible with cold crucible crystal growth for up to 2"
  • Additional cold crucible sample holder
  • Additional high-frequency induction power supply
  • Additional water chiller for cold crucible cooling only
  • Please contact MTI for details. 
Vacuum Pump (Optional)
  • Mechanical pump YTP550
  • Turbo Pump 
Water Cooling (Optional)
  • Water cooling is optional but required.
  • MTI recommend getting KJ6500 water chiller
  • Cooling capacity 50000 Btu/hr or 14.5 kW
  • Water flow 100 L/min
Product Dimensions
(W×D×H, unit mm)
  • Crystal Grower               1250 × 1150 ×2700
  • Control Tower                 565 × 800 × 1740
  • Induction Control Box     700 × 400 × 835
  • Induction Power Supply  650 × 820 × 835
  • Weight                             1200 kg
Warranty
  • One-year limited warranty
Compliance
  • CE certified
  • NRTL certification is available upon request at the extra cost
Demo Video

         

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Notices
1. Prices listed online are valid for the US market and who pay by credit card only. There will be extra charges for shipping & handling. Prices vary from country to country.
2. We may add extra charges for paper orders and NET 30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.