Furnace Structure |
- Two independent temperature controllers to control each zone's temperature.
- Double-layer steel casing with air cooling keeps furnace surface temperature lower than 60°C.
- High purity fibrous alumina insulation for maximum energy saving.
- The special refractory coating on liner and heating element helps increase furnace service life.
- Split cover with Interlock protection, cut the power if the door opens during the furnace heating process.
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Power Requirement |
- Single Phase 208~240VAC, 3KW (20Amp circuit breaker is required)
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Heating Zone Length |
- Two zones: each zone length is 8" (200 mm)
- Total 16" (400 mm) heating zone
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Constant Temp. Zone |
- 150mm (+/-1°C) for each heating zone
- A longer constant temperature zone ( about 250mm ) can be created by setting both zones at the same temperature
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Temperature Range |
100~1100°C (Continuous); 1200°C (for limiting) |
Max. Heating Rate |
≤ 20°C /min |
Revolving Feeding Stock System |
- One thermocouple connects to the crucible from the left flange . The stepper motor drives the crucible to travel through the tube together with the thermocouple for real-time temperature monitoring.
- Four crucibles can be simultaneously placed into the revolving feed system and sequentially delivered to the quartz tube under vacuum or inert gas one by one .
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Crucible Movement Control |
- The crucible moving speed and distance are controlled by a stepper motor.
- Crucible traveling distance: 1mm ~ 200mm
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Temperature Controllers |
- Two digital controllers with 30 programmable segments for precise control of heating rate, cooling rate, and dwell time.
- Built-in PID Auto-Tune function with overheating & broken thermocouple protection.
- Over-temperature protection and alarm allow for operation without attendant(s).
- +/- 1ºC temperature accuracy.
- Two K-type thermocouples (one for each zone).
- RS485 Communications Port.
- Optional:
- The furnace can be operated by PC with an MTS02-Y Temperature control software package (include 2 communication chips and one 15" laptop).
- Eurotherm 3000 controllers are available with +/- 0.1ºC accuracy at the extra cost.
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Tube Accessories |
- One fused quartz tube (60mm O.D. x 54mm I.D. x 1000mm L) is included.
- Four quartz crucibles for evaporation are included
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Digital Vacuum Gauge |
- Corrosion-proof Capacitance Diaphragm Gauge with ceramic coated sensor head specially designed for vacuum measurements with the presence of corrosive gases.
- Provides a wide range (3.8E-5 ~ 1125 torr) of measurement.
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Vacuum Pump |
- Double Stage Rotary Vane Vacuum Pump is included.
- SS vacuum pipe & ball valve with KF25 adaptor generate 1E-2 torr vacuum.
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Gas Flow Control System |
- Three-channel Gas Control System with PLC Touchscreen is included.
- Three mobile carts are included to support the furnace and the revolving feed system.
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Water Chiller |
- A 16L/min recirculating water chiller is included for cooling the flange.
- Short water power off and Over-temperature alarm built-in.
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Dimensions |
2400mm(L) x 600mm(W) x 1300mm(H) |
Warranty |
One year limited warranty with lifetime support. |
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Application Notes
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- Tube furnaces with quartz tubes are designed for use under vacuum and low pressure < 0.2 bars. Vacuum pressure may only be safely used up to 1000°C. The flow rate for gasses should be limited to < 200 SCCM (or 200 ml/min) for reducing thermal shocks to the tube.
- Attention: A two-stage pressure regulator must be installed on a gas cylinder to limit the pressure to below 3 PSI for safe operation.
- You can set up the different temperature with each zone to create a thermal gradient for CVD deposition.
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