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1200°C Dual Zone Split Tube Furnace with Optional Quartz Tube(60, 80, 100mm) & Vacuum Flanges - OTF-1200X-II

Transported by LTL Freight (Truck)

Product Options

Tube Size:


Upgrade to Eurotherm Temperature Controllers (Dual zone)
OTF-1200X-II-UL is a CE Certified and ready to pass UL/CSA certification (details please refer to specification below) furnace with optional quartz Tube (60, 80, 100mm) & Vacuum Flanges. Split two-zone tube furnace which can achieve faster heating up to 1200oC and create a different thermal gradient by setting different temperature of each zone. The furnace includes one 40" L fused quartz tube (please select tube O.D in options bar) with vacuum flanges and valves for immediate use. Two 30 segments programmable temperature controllers are installed. The microprocessor-based self-tuning PID controller provides excellent control without overshooting the set temperature. It is a perfect tool for CVD applications such as preparing nanomaterials and film.


Furnace structure

  • Double layer steel case with two cooling fans, which ensure low surface temperature
  • Energy saving high purity fibrous alumina liner and  insulation
  • High purity Al2O3 coating  which provides a longer service life
Power 3 KW (20A Breaker)
Voltage AC 208-240V Single Phase, 50/60 Hz, a power cord is included without the plug.
Temperature range 100~1100° C (Continuous); 1200° C (<1 hour) 
Max. Heating Rate ≤ 20° C /min
Tube Accessories (When the tube size is selected, compatible accessories will match it automatically, please refer to standard package for details)
    • One fused quartz tube with 1000mm L is included 
    • 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, available at extra cost
    • You may order flange support to avoid tube rotating ( click Pic below right )

Heating Zone Length

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 
  • Please click the pic to view detail temperature uniformity profile at 800C.

Temperature Controllers
  • 2 MET certified 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 allows for operation without attendant(s)
  • +/- 1 ºC temperature accuracy
  • Two K-type thermocouples (one for each zone)
  • RS485 Communications Port
  • Optional:  
    • The furnace may be operated by PC by 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 
Thermal Couples
Temperature Accuracy +/- 1° C
Heating Element Fe-Cr-Al Alloy doped by Mo
Vacuum Flange & Fitting Ports
(Certain flange size will be matched as the tube size is selected in options bar)
  • One pair of SS 304 vacuum flange with double high-temperature silicone O-rings are Included
  • One Vacuum pressure gauge is installed, one digital vacuum gauge is available upon request at an extra cost
  • The flange set has two 1/4'' Bard fittings, two needle valve, one set of KF25 quick clamp, one blank flange fitting, 1/4'' tube feedthrough port (for 1/4" O.D thermocouple insert) and a KF25 vacuum port (click the picture in the left to see details)
  • Vacuum level can reach 10^-2 torr by a quality mechanical vacuum pump and 10^-5 torr by a molecular pump
  • Optional: Please choose quality mechanical pump or molecular pump (please click the pictures below to find the right one for your application)
Net Weight ~40 kg


   590mm(L) x 380mm(W) x 520mm(H)   
Crating Dimensions 45"(L) x 45"(W) x 35"(H)
Shipping weight 200 lbs
Warranty One-year limited warranty with lifetime support. (Consumable parts such as processing tubes, o-rings, and heating elements are not covered by the warranty, please find the replacements 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 the 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.  
  • Eurotherm precision temperature controller with +/-0.1°C accuracy is available upon request at the extra cost.

  • CE Certified
  • NRTL (UL61010)  or CSA certification at an extra cost. (Please click the marks below to learn details)

Application Notes

Click here to learn the installation of a gas regulator.

Operation Instructions

How to set up the furnace Controller Operation Demo Video How to create Temperature gradient


Model OTF-1200X-60-II-UL OTF-1200X-80-II-UL OTF-1200X-100-II-UL
Item Description Item No. Item No. Item No.  Qty
Quartz tube EQ-QZTube-60G-1000 EQ-QZTube-80D40 EQ-QZTube-100 
Flange set EQ-FL-60KF25-FTM EQ-FL-80KF25-FT EQ-FL-101KF25-FTM
1 set
Thermoblocks EQ-F-T-block-52 EQ-F-T-block-70 EQ-F-T-block-92
1 set
 Hex Wrench   1 set

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1. Prices listed online are valid for US market and whom 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 cost.
3. The prices listed are subject to change without notice.