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Compact High Pressure Gas Tube Furnace (HIP) with 12 or 20 mm ID. up to 1100C - OTF-1200X-S-HP-30A

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Tube Size:


OTF-1200X-S-HP-30A (updated from OTF-1200X-HP-30 with extra analog controlled pressure relief valve and pressure monitoring gauge) is a CE/UL/CSA certified compact high-pressure tube furnace featuring a Ni-based super-alloy tube vessel (30mm O.D x 12 mm I.D x 560 mm L). It can be used under ultra-highly oxidizing and inert gas atmosphere up to 1100°C to process special compounds. It is a compact HIP (hot isostatic pressure) furnace for researching a new generation of materials at a low cost.  
A solenoid valve is installed on the flange allows auto-pressure relief control. Temp. Control and Pressure Real-time Monitoring software is also included. (new feature since 5/12/14, Laptop is included since 9/10/15.) 

   Furnace Structure
  • Double-layer steel casing
  • High purity fibrous alumina insulation for Max. energy saving.
  • The aluminum heat sink on the processing tube to ensure pressure flange and fitting < 60°C
  • Splittable cover for changing tube at easy
   Power 1.5KW
   Voltage AC 208 - 240V Single Phase, 50/60 Hz
   Max. Temperature 1100°C
   Max. Heating Rate <= 10°C/min
   Pressure Vessel

  • Made of Special Ni-based Superalloy: (Waspaloy or equivalent)
  • Vessel size: 30 mm O.D x  12 mm I.D. x 580 mm Length
  • 1/4" compression tube fittings are installed on both ends of flanges
  • Ni-based superalloy tube vessel (30mm O.D x 12 mm I.D x 580 mm L)
  • 50mm O.D. x 20 mm I.D. x 580mmL tube is available in the product option
Working Pressure vs temperature

Maximum pressure inside the tube
Heating temperature
Max. 2900 PSI  (20 Mpa) 800°C
Max. 1740 PSI  (12Mpa) 900°C
Max. 870 PSI   (6 Mpa) 1000°C
Max. 580 PSI   (4 Mpa) 1100°C
  • Warning
  • Please set up a pressure alarm point in the digital pressure display before the operation
  • Must install a pressure regulator on the gas cylinder to increase pressure gradually.
  • Service life depends on the maximum operating temperature and sample used. The high-pressure vessel is a consumable part, please order replacement once observed deformation.

   Compatible Gas and crucible
Heating Zone length 200 mm (single zone)
Temperature Uniformity +/-1°C within 50mm and +/-2°C in 70mm
Temperature control
  • Precision temperature controller with 30 segments programmable and PID autotune
  • LED digital display with the protection of over temperature and the thermal couple broke.
  • Temperature accuracy: +/- 1°C
  • K-type thermal couple built-in
  • The Eurotherm Temperature (3000) controller is available upon request with +/- 0.1°C
      Pressure Monitoring and Relief      

  • The pressure transducer is installed on the right flange and connected to the digital pressure monitor which allows you to set the higher pressure limit
  • One high-pressure solenoid valve is installed on the left flange and controlled by pressure monitor
  • Max. pressure can be set on a pressure monitor. Once Max.pressure inside vessel is reached, gas will be released automatically
  • Note: Max.pressure of the standard solenoid valve is 150 bar(2165 psi/ 15MPA).  If you need pressure > 150bar at a lower temperature, the manual valve located beneath the solenoid valve shall be shut off

PC Control

  • A brand new laptop with pre-installed & tested software is included for immediate use(Since 9/10/15).
  • MTS-02 control software is included for controlling and displaying temperature and pressure by PC at a remote location.
  • Please don't try to buy a furnace without the computer because of liability issues.   

Pressure Transducer 

  • The pressure transducer is installed on the right flange. The pressure will be displayed in the pressure monitor on the front panel of the furnace. Pressure measurement ranges up to 250 bars.
  • The alarm system is built in the pressure meter which allows the user to set up the high limit point of pressure. When the measuring pressure exceeds the limit point, the alarm will be activated and open the solenoid pressure relief valve
Pressure Fitting

  • Two flanges with female 1/4" NPT fittings to connect the high-pressure tube
  • One Aluminum heat radiators are installed in front of the flange to keep the flange below 100C
  • One high-pressure valve is installed with flanges
  • One Pressure meter installed to one of the valves
  • Two high-pressure copper gaskets are included for immediate use.  You may click the picture below to order extra Cu gaskets
  • The optional torque wrench is available here to avoid overtightening the flange bolts
Heating Element Fe-Cr-Al Alloy doped by Mo

340mm × 300mm × 400mm (W x L x H) 
Net Weight ~78lb
Warranty One year limited warranty (Consumable parts such as o-rings and heating elements are not covered by the warranty, please order the replacement at related products below.) 
Laptop, software 
  • Brand new laptop with Microsoft Window 10 and Microsoft Office 2013 (30 days free trial)
  • 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). Please contact us for more information.
  • Note: The software is only compatible with MTI’s Yudian Temperature Controller
  • CE Certified
  • NRTLor CSA certification is available at an extra cost
Operation Instructions         
Shipping package Dimension 45" x 45" x 35"
Shipping weight 100lbs
Application Notes

Safety Notes
  • Ni-based Superalloy: ( Waspaloy or equivalent is a reliable processing tube which can be used under high temperature and high pressure. It has excellent ductility and tensile property so only creep deformation happens under overpressure destruction test and following by a crack formed (usually at the hot zone at the center of the tube) to release the pressure. Brittle fracture won’t happen in the overpressure destruction test which means no tube explosion will happen under the overpressure of inert gas or safe gas or under other accidents causing overpressure of inert gas or safe gas.
  •      The pics show the  Ni-based Superalloy tube when overpressure test
  • Attention: for the use of flammable, toxic or corrosive gasses, you must contact MTI engineering group for the consultation to know all the prerequisites and precautionary measures.
  • Warning: Never put a sample inside the tube directly without crucible or isolated foil to avoid it reacts with tube alloy.
  • Do not over-tightening the flange screws as this may cause permanent damages to the flange or screws. Please refer to the instructions about proper torque for installing CF flange bolts. We recommend you use a torque wrench to tighten the screws with the flange.

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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. Prices vary from country to country.
2. We may add extra charges for paper orders and NET 30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.