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400C Max. Zone Melting Furnace for Directional Solidification and Purification - OTF-1000XCBZ-AB

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OTF-1000XCBZ-AB is a 400°C Max zone melting system that is equipped with a touch screen for ease of control. Such a system is widely used for metallic material directional solidification, purification, and single crystal growth.


  • Vacuum/Atmosphere protective environment for samples.
  • Maximum travel distance: 450 mm. 
  • Single heating element for a maximum temperature gradient.
  • Adjustable temperature gradient for versatile materials. (~50°C/cm)
  • Moving/Pulling Speed: 0 - 55mm/Hr adjustable.
  • Ideal for low-melting-point material directional solidification, purification, and single crystal growth.
 Heating Module
  • The Heating Module is made of a resistance wire ring heater, one RTD sensor for temperature control, two extra RTD sensors for temperature monitoring, two cooling air knives. The positions of air knives are adjustable. 
  • Max. working temperature is 400ºC
  • The ID of the ring heater is 32 mm
  • The heating zone length is 40 mm
  • The heating module is fixed on a linear module to achieve accurate verticle movement.
  • The spare heating module is available upon request at the extra cost
  • AC 220 V, Single Phase, 50/60Hz
  • 2 kW
Control Panel
  • Touch Screen, User-Friendly
  • Parameters: Travel, distance, speed. 
  • Max Travel Distance: 450mm.
  • Travel Speed: 0 - 55 mm/hr
  • Acuracy of position detection: 0.001mm 
Working Temperature 
  • Fe-Cr-Al Resistance Heating with resistance heating
  • Maximum Working Temperature: 400°C ( <1hr)
  • Constant heating temperature: 300ºC
  • Ramping Rate: 10°C/ Min
  • Temperature Accuracy: +/- 1°C
Tube and Flange
  • 24mm O.D., 20mm I.D. SS 304 tube  (Quartz tube is available upon request)
  • Top and Bottom stainless steel flange with the 1/8" gas ports
  • The quartz tube is available upon request. 
  • Sample rotation is available upon request. 
Zone Melting Mechanism
  •   Zone melting or directional solidification is by moving the ring heater in a vacuum-sealed tube.
    • Moving speed: 0 - 55 mm/hour 
    • The travel distance: 0 - 450 mm
    • Servo motor controlled
Vacuum Pump (Not included)
  • 10-2 torr via dual-stage mechanical vacuum pump (bottom right picture)
  • 10-5 torr via Turbopump (bottom left picture)
  • The vacuum pump is optional. Please click here to choose a vacuum pump.
  • CE certified
  • NRTL certification is available upon request at the extra cost
  • One Year limited warranty with lifetime support
  • 750 mm (L) x 700 mm (W) x 1200 mm
Net Weight
  • 80 kg
  • 177 lbs
Demonstration Video         
 Application note

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