Three Zone Quartz Tube Furnace (80mm Dia, 1200C Max) with Three Channel Gas Mixer, Vacuum Pump, and Anti-Corrosive Vacuum Gauge - OTF-1200X-80-III-F3L

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Item Number: OTF-1200X-80-III-F3LV


OTF-1200X-80-III-F3LV  is a CE certified splitable three zones Tube furnace with mechanical vacuum pump & digital vacuum guage and three channels gas flowing system, which can achieve vacuum up to 10-2 torr and mix 1-3 type of gases for CVD or diffusion. This furnace system also includes an anti-corrosive Pirani Capacitance Diaphragm Gauge to enable vacuum measurements with aggressive gases.


Furnace Construction
  • Double layer steel casing with air cooling
  • High purity alumina fiber insulation for max. energy saving
  • Splitable cover for easy tube replacement

Power Consumption

5 KW

Input Voltage

AC 208-240V Single Phase, 50 or 60 Hz

Maximum Temperature

1200 oC


1100 oC

Maximum Heating Rate

<= 20 oC /min

Heating Zone Length

Three zones: (880mm, 35" in total)

  • Zone 1: 220mm  (8.6" )
  • Zone 2: 440mm  (17.3")
  • Zone 3: 220 mm (8.6")

Constant Temperature Zone

  • If three zones are set at the same temperature, constant temperature zone is 25" (625 mm) long with a temperature discrepancy of +/- 1oC.
  • If using only one zone (center zone), constant temperature zone is 4.3" (110 mm) long with a temperature discrepancy of +/- 1oC.

Temperature Accuracy

+/- 1oC

Heating Elements

Fe-Cr-Al Alloy doped by Mo

Temperature Controller

  • Three precision temperature controllers to control three zones separately.
  • 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.
  • RS485 Communications Port.
  • Optional:
    • The furnace may be operated by PC by installing three 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.

Quartz Tube& Sealing Flanges
Vacuum Sensor & Display
Vacuum pressure gauges
  • Corrosion-proof Capacitance Diaphragm Gauge with ceramic coated sensor head specially designed for vacuum measurements with presence of corrosive gases.
  • Gauge is installed on the vacuum flange (right side) of tube furnace and provides a wide measure range (10^-5 ~ 1000 torr).
Sliding Flange with Sample Holder
Vacuum Sealing Flanges
  • Two stainless steel flanges with both vacuum gauge and valves included.
  • Min. vacuum pressure achieved by mechanical pump is 5.5 m-torr. ( 5.5x10^-3 torr). The pressure can reach 10^-5 torr by using mechanical + moleculer pump.
  • Leaking rate is < 5 m-torr / min. and stable vacuum pressure after 24 hours is < 2 torr.
  • Click the picture below to get details chart and data measured by CE cetified vacuum meter:

(For a whole 24 hours curve display, the time segment through 08:00:00~21:10:00 in X axis is passed over in the chart, therefore, steep variety in there)

Vacuum Pump

120 L/m Rotary Vane Vacuum Pump is included with max. vacuum pressure of 10^-2torr. Stainless steel hose tube is included for connecting to tube furnace.

Gas Flow Meter and Pressure Meter
New Version front panel
1) Compact direct read flow meter, 10-100 cc/min.
2) Compact direct read flow meter, 16-160 cc/min.
3) Compact direct read flow meter, 25-250 cc/min.
  • Four pressure meters are installed inside the mobile cart which are able to monitor three types of flowing gas pressure as well as the pressure of mixing tank.
Valves Four stainless steel valves are installed in the side panel of mobile cart to control mixing of three inlet gases separately


  • Furnace: 1100 X 450 x 670 mm
  • Bottom Mobile case: 600x600x597 mm

Net Weight

~ 90 Kg

Shipping Weight

245 Lbs

Shipping Dimensions

Two cases in one pallet:  45"x45"x35"/case


One year limited manufacturer's warranty (Consumable parts such as processing tubes, O-rings and heating elements are not covered by the warranty, please order replacements at related products below).


  • CE Certified
  • UL / MET / CSA Certification is available upon request, additional charges will apply
  • Temperature controller is MET and CE Certified

Application Notes

Operation Instructions




Premier Solutions Pte Ltd / MTI Corporation - Three Zone Quartz Tube Furnace (80mm Dia, 1200C Max) with Three Channel Gas Mixer, Vacuum Pump, and Anti-Corrosive Vacuum Gauge - OTF-1200X-80-III-F3L

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