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Five Zones Split Tube Furnace with 80mm O.D. Quartz Tube & Vacuum Flanges - OTF-1200X-80-V

In stock
Item Number: OTF1200XV80
Transported by LTL Freight (Truck)


OTF-1200X-80-V is a CE certified split 80mm OD (3" I.D) Five-zone tube furnace which can achieve faster heating up to 1200oC and create a smooth thermal gradient or one uniform constant temperature zone by adjusting four zone temperature. The furnace includes one 80 mm O.D x 1400mm L fused quartz tube, one pair of vacuum sealing flanges with pressure gauge & ball valve for immediate use. 
Five 30 segments temperature controllers are installed with the K-type thermal couple. Microprocessor-based self-tuning PID control provides excellent control without overshooting and  +/- 1 oC accuracy. It is an excellent furnace for annealing, diffusing and sintering sample in various atmospheres.   Thermo-couple, Power cord and 80 mm O.D. x 55" length, quartz tube and stainless steel sealing flange with gauge/valve are included for immediate use.   


Furnace structure

  • Double layer steel case with two cooling fans, which ensures low surface temperature.
  • Energy saving high purity fibrous alumina insulation.
     8 KW
  • AC 208-240V Single Phase, 50/60 Hz (40A breaker required)
  • Powder cord is included without the plug
 Max. Temperature
 1200  oC
 Continuous Temperature
 1100  oC
 Max. Heating Rate
 <= 20  oC /min
 Tube Size and Flange
  • Standard:  80 mm O.D x 74 mm ID. x 1400mm L fused quartz tube included;
  • Options:  4" diameter tube is available upon request at extra cost;
  • Two fibrous ceramic tube blocks are included for blocking heat radiation from inside tube. (Ceramic blocks must be fully inserted into the furnace chamber before heating)
  • Quartz block (Optional) is ideal for more cleanness and higher achievable vacuum.

Fitting Ports
  • In order to increase the throughput and achieve high vacuum, you may replace the standard barbed hose fitting with the KF25 adapter, please click underline to order.
  • For supplying high-pressure gas, you may replace the standard barbed hose fitting with the VCR Face Seal Fitting, please click underline to order.
Heating Zone Length
  •  Five heating zones:   Each Zone length: 152 mm x 5
  •  Total heating zone length: 870 mm, 34" in total)
Temperature Controllers
  • 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.
  • Five K-type thermocouples (one for each zone).
  • RS485 Communications Port.
  • Optional:  
    • The furnace may be operated by PC by installing five control modules. Please order the MTS-02 control modules at 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.
 Temperature Accuracy
 +/ - 1  oC
 Heating Element
 Fe-Cr-Al Alloy doped by Mo
 1100 X 450 x 670mm
 Net Weight
 about 85 Kg
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.) 
Laptop, software & WiFi Control(Optional)
  • Brand new laptop with Microsoft Window 10 and Microsoft Office 2013 (30 days free trial) for immediate use.
  • Labview Based Temperature Control System (EQ-MTS01) enables user to edit temperature profile, manage heat-treatment recipe, record and plot data for MTI furnaces.
  • A wireless remote control provides up to 300 meters operating range.
  • Above features are available upon request at an extra cost (up to $1,000). Please contact us for more information.
  • Note: 
    The software is only compatible with MTI’s Yudian Temperature Controller


  • CE Certified
  • UL / MET / CSA Certification is available upon request, additional charges will apply
Shipping package size after crating
Shipping weight
 250 Lbs
(click picture to order at extra cost)
May choose the different diameter of the working tube at 40 mm or 50 mm at the same cost

 Operation Manual       About shipping / Handling    Quick test instruction

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1. Prices listed online are valid for the US market and who pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.