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24"L 3-Zone Tube Furnace for 1"- 5" Processing Tube (no flange or quartz tube) - OTF-1200X-III-S-NT

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OTF-1200X-III-S-NT  is a split-able three-zone tube furnace without processing tube and flange. Three 30 segments temperature controllers are installed with three K-type thermocouples. Microprocessor-based self-tuning PID provides excellent control with no overshooting and  +/- 1 °C accuracy. It is an excellent furnace for sample annealing, diffusion and sintering in various gases atmosphere up to 1200°C.  Please select the tube adapter in the options bar to view the price and model. We will provide one set of tube adapters free of charge
Furnace structure
  • Double layer steel case with two cooling fans which ensure low surface temperature;
  • Energy saving high purity fibrous alumina insulation
  • Two fibrous ceramic tube blocks are included for blocking heat radiation from inside of the tube. (Ceramic blocks must be fully inserted into the furnace chamber before heating).
  • The temperature controller can be separated from the furnace and operate the furnace in the remote location.
Rated voltage AC 208-240V Single Phase, 50/60 Hz (30A breaker required; Powder cord is included without plug)
Power consumption 5 KW Max.
Heating elements Fe-Cr-Al Alloy doped by Mo
Heating zone length
  • Three zones: 610mm (24") in total
  • Z1-Z2- Z3:152.4mm (6") + 304.8mm (12") + 152.4mm (6")
  • +/-1ºC Constant Temperature Zone: 260 mm length
  • +/-2ºC Constant Temperature Zone: 480 mm length (click the pic below for detail)
Quartz tube & Vacuum Flange (Optional)
  • Furnace module for 80mm O.D  (3") x 1200 mm long tube.
  • Please contact us for 1" to 5" O.D. tube furnace module.
  • The vacuum flange and quartz tube are not included.  Please click the picture below to choose
Heating temperature
  • Max. Heating Temperature: 1200°C;
  • Continuous Heating Temperature: 1100°C;
  • Max. Heating Rate: 20°C/min;
Temperature Controllers
  • Three PID automatic control with 30 programmable segments for precise control of heating rate, cooling rate and dwell time.
  • Built-in overheating & broken thermocouple protection.
  • Over-temperature protection and alarm allows for operation without attendant(s).
  • +/- 1 ºC temperature accuracy.
  • Three K-type thermocouples (one for each zone).
  • RS485 Communications Port.
  • Optional:  
    • The furnace may be operated by a PC with installing a control module. Please order an MTS-02 control module at an extra cost. 
    • If you order the PC control module together with the furnace, we will install and test it before shipping. We recommend you to order a computer laptop from us to avoid software installation problems. For more information please click here.
European Temperature Controllers (optional upgrade)
  • 1 heating channel
  • 1 program of 8 or 24 segment
  • Alarm Relay: Form 'A' and Form ‘C’ built-in 
  • Digital Communications: RS485
  • Temperature Accuracy:  ±  0.1ºC
  • Recipes: Using a PC tool recipes can be created that can be used to change the operating parameters of the 3000 simply by selecting a new recipe via the HMI. This is very useful where multiple products are processed using the same controller but require different parameters to be set.
Dimension 750mm L x 525mm W x 670mm H 
Net Weight ~70 kg
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 replacements at related products below.)
Laptop, software & WiFi Control
  • Brand new laptop with Microsoft Windows 10 and Microsoft Office 2013 (30 days free trial) for immediate use.
  • Labview Based Temperature Control System (EQ-MTS01) enables users to edit temperature profiles, manage heat-treatment recipes, record, and plot data for MTI furnaces.
  • A wireless remote control provides up to 300 meters of operating range.
  • The above features are available upon request at an extra cost (up to $1,000). 
Compliance CE Certified
NRTL or CSA certificate is available upon request at the extra cost.
Shipping dimension 65x45x35"
Shipping weight 340lbs
Application Note
Operation Instruction    

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