OTF-1200X-VIII-80 is an Eight-zone 3" ID split tube furnace with a separated touch screen temperature control unit and max working temperature of 1100oC. This eight-zone furnace can create a step thermal gradient or long constant temperature zone up to 60" within +/- 0.5ºC by adjusting the seven zone temperature. The furnace is installed with 100 OD x 92 ID x 2700 mm L ( mm) quartz tube and Ait-tight flange, and also can accept various processing tubes from 1" to 4".
SPECIFICATIONS:
Furnace Structure
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Power & Voltage |
- AC 208-240V Single Phase, 50/60 Hz
- 9 KW Max. (50A breaker required)
- Powder cord is included without plug
- Note: If use 208V, three-phase power panel, need min. 30A breaker
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Continuous Temperature |
- 1100 °C under flowing gas
- 1000 °C under vacuum < 1 torr
- 1000 °C under vacuum < 1 torr
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Max. Heating Rate |
<= 10 °C /min |
Quartz tube &
Thermal Block Placement
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Quartz Tube: 100 OD x 92 ID x2700 L mm
- Two fibrous alumina thermal blocks are included, which must be placed on two ends of the inside tube ( click pic below right )
 
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Vacuum Flange
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- One pair stainless steel vacuum flange is included with a quick assembling flange (an outside clamp for quick installation) without cooling.
- Custom fitting is as request from customer ( 1/4NPT only , without valve )
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Heating Zone
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Eight independent heating zones:
Left and right heating zone length: 200 mm each and the rest heating zone length 150 mm each -
Total zone length: 60" ( 1500 mm ) ( Including spacers between heating zone)
- Max. Constant temperature zone 60" ( 1500 mm ) if 8 zones heated at the same temperature ( within +/- 5°C)
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- One touch screen digital temperature controller built-in a separated unit, which can control seven heating zones independently
- Each channel is PID automatically controlled and saves 10 programs and each program has max. 30 segments
- Built-in overheating & broken thermocouple protection.
- +/- 1 ºC temperature accuracy.
- Eight K-type thermocouples (one for each zone).
- RS485 Communications Port built-in. and software included,
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The furnace may be operated by PC ( please order PC separately ).
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Net Weight |
- Furnace with Supporting Table: 450Kg
- Controller: 92 kg
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Shipping Weight & Dimension
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- Furnace with Supporting Table: TBD
- Controller: 300 lbs; 48"x 40'' x 63"
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Warranty |
One-year limited warranty for electrical parts. (Consumable parts such as processing tubes, o-rings, and heating elements are not covered by the warranty, please order the replacement at related products below.) |
Compliance |
- CE Certified
- The furnace is ready to pass NRTLor CSA certification at extra cost.
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Shipping Weight & Size |
TBD |
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- The tube furnaces with quartz/mullite tubes are designed for use under vacuum and low pressure < 0.2 bar
- Attention: A two-stage pressure regulator must be installed on the gas cylinder to limit the pressure to below 3 PSI for safe operation. Click here to learn the installation of a gas regulator.
- * Vacuum pressures may only be safely used up to 1000°C
- The flow rate for gases should be limited to<200 SCCM (or 200ml/min) for reducing thermal shocks to the tube
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Temperature Control Instructions |
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