1200°C Max Sliding Tube Furnace (80mm OD) with Flanges for Fast Heating / Cooling - OTF-1200X-80SL

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Item Number: OTF-1200X-80SL

OTF-1200X-80SL is a CE certified slide-able tube furnace with 3"IDx55" L quartz tube and flanges and a maximum working temperature up to 1200°C. One pair of sliding rail is installed on bottom of furnace to allow sliding the furnace from one side to another to achieve max. heating and cooling rates up to 100°C/min. For fastest heating, the furnace may be pre-heated to a desired temperature and then be slided to the sample's position. As for fastest cooling, the furnace can be slided to another side after sample heating is completed. Moreover, the heating and cooling rates may reach 15°C/s under vacuum or inert gases. This furnace provides an alternative for rapid thermal processing at the lowest cost.


Furnace Structure

  • Double layer steel structure with dual air cooling fans
  • One pair of sliding rails are installed on bottom of furnace, which allows furnace to be manually  moved from side to side
  • Vacuum flanges and a digital vacuum gauge are installed  for immediate use.


Voltage AC 208-240V Single Phase, 50/60 Hz

Max. Temperature

1200°C (<1 hour)

Continuous Temperature


Heating& Cooling Rates


Heating Rate:
15°C/sec (RT - 150°C);
10°C/sec (150°C - 250°C);
7°C/sec (250°C - 350°C);
4°C/sec (350°C - 500°C);
3°C/sec (350°C - 550°C);
2°C/sec (550°C - 650°C);
1°C/sec (650°C - 800°C);
0.5°C/sec (800°C - 1000°C);
Cooling Rate:
15°C/sec (1000 - 950°C);
10°C/sec (950°C - 900°C);
7°C/sec (900°C - 850°C);
4°C/sec (850°C - 750°C);
2°C/sec (750°C - 600°C);
1.5°C/sec (600°C - 500°C);
1°C/sec (500°C - 400°C);
0.5°C/sec (400°C - 300°C);
Note: The max heating and cooling rate is achieved by pre-heat one side of processing tube to the target temperature and then slide the furnace to the other side. You may choose to place the sample in the pre-heat area or not.

Heating Zone Length

440mm ( single zone )

Constant Temperature Zone

120mm (+/-1°C @ 400-1200°C)

Heating Elements

Fe-Cr-Al Alloy doped by Mo

Processing Tube Size

High purity fused quartz tube

Size:  OD: 3.2" x  ID: 3.0" x Length: 55" (inch)
OD:  80 x ID 75 x Length 1400  ( mm)
Two foam ceramic blocks are included which must be placed inside tube to avoid heat radiation damaging O-ring

Temperature Controller

  • PID automatic control with 30 programmable segments for precise control of heating rate, cooling rate and dwell time.
  • Built-in over temperature alarm and protection allows for operation without attendant.
  • Two K type thermal couples are included.  One is bilt in furnace to control furnace temperature, and another in serted into tube to monitor sample real temperature profile.
  • One NIST certified thermometer is included to connect to the thermal couple inside tube. the meter has RS232 Interface with Windows Software which can record temperature profile by PC.
  • Optional:
    • The furnace may be operated by PC by installing a control module. Please order a MTS-02 control module 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°C

Vacuum Flanges

Stainless steel vacuum flanges are installed on both ends of tube with heavy duty support. 

Right flange: hinged type flange for easy operation with KF-25 pump connector, digital vacuum gauge and needle valve.
Left flange: one needle valve and 1/4" thermocouple feed-through. An 18" length x 1/4" dia. K type thermocouple (included) connected to an Omega temperature calibrator (included) will be inserted through this flange to monitor the heating and cooling rates of the sample's position during furnace sliding.

Click pictures below to see details:
Right Flange Left Flange Omega Temp. Calibrator 18" K type Thermocouple Digital Vacuum Gauge

Vacuum Level

Limited by pump ( pump is not included, click on pictures to order )

  • 10E-5 torr can be reached by molecular pump
  • 10E-2 torr by mechanical pump.

Sliding Rails / Table

  • Double sliding rail made by Cr plated steel

  • Sliding length: 1200 mm


  • 550 x 380 x 520  mm ( furnace only)

  • 1500 x 380 x 620 mm ( furnace + sliding )

Net Weight

~ 100 Kg

Shipping Package Size

70" x 45" x 45" (inch)

Shipping Weight

350 lbs


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).


  • Components:   Temperature controller is Met certified.   
  • Furnce:          CE certified
  • CSA certificate is available upon request at extra cost

Application Notes





Premier Solutions Pte Ltd / MTI Corporations - 1200°C Max Sliding Tube Furnace (80mm OD) with Flanges for Fast Heating / Cooling - OTF-1200X-80SL


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