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8 Zones 1100C Max 4" OD Tube Furnace w/ Touch Screen Temperature Control Panel - OTF-1200X-VIII-100

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Item Number: OTF-1200X-VIII-100
Transported by LTL Freight (Truck)


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".
  Furnace Structure
  • Double-layer steel case with air cooling to ensure furnace surface temperature < 60 °C
  • Energy-saving high purity fibrous alumina insulation.
  • Heating Element: high-quality Fe-Cr-Al Alloy doped by Mo
  • 86 " length x 5.5"dia heating chamber with 8 heating zone and 8 built-in thermal couples to accept processing tubes from 1" - 4" dia.x2700 mm length
  • The splittable cover is lifted and closed by a pair of heavy-duty compressed air springs to make tube replacement easy.      
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
 Continuous Temperature
  •  1100 °C under flowing gas
  •  1000 °C under vacuum < 1 torr
  •  1000 °C under vacuum < 1 torr
 Max. Heating Rate
        <= 10   °C /min
Quartz tube &
Thermal Block Placement
  • 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 )
Vacuum Flange 
  • 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 )

Heating Zone
  • 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)

Temperature Controllers
  • 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, 
  • The furnace may be operated by PC ( please order PC separately ).
 Net Weight
  •  Furnace with Supporting Table:  450Kg
  •  Controller: 92 kg
Shipping Weight & Dimension
  •  Furnace with Supporting Table:   TBD
  •  Controller: 300 lbs; 48"x 40'' x 63"
 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.)  
  • CE Certified
  • The furnace is ready to pass NRTLor CSA certification at extra cost. 
Shipping Weight & Size
  • 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
Temperature Control Instructions

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