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1100C Three Zone High Pressure & High Vacuum Tube Furnace with Super-Alloy Tube - OTF-1200X-III-HP-80
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Item Number: OTF1200XIIIHP80
Personalization
Upgrade to Eurotherm Temp controller( 3 zone)+15" Laptop+ USB Cable
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OTF-1200X-III-HP-80 is a high-pressure/ high vacuum split tube furnace with three heating zones. The processing tube is made of a Ni-based superalloy, which offers a solution for heat treatment under both high positive pressure and high vacuum pressure with/without inert gas support to process special compound materials. The furnace can be heated up to a max. 1100°C at 2.5 bar pressure (or 900°C at 80 bars).
SPECIFICATIONS
| Structure |
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Working Pressure Vs Temp. |
- 200 bar Max. at 650 °C
- 140 bar Max. at 800 °C
- 80 bar Max. at 900 °C
- 50bar Max. at 1000 °C
- 2.5 bar Max. at 1100 °C
- 1.2 Bar Max. at 1150 °C
- Never heat up above 1200°C
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Working Gases |
- Inert gas or oxygen
- No hydrogen or any flammable gas is allowed
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Heating Temperature
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- 1100 °C max.for < 1 hour
- ≤ 1000 °C continuous
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Heating Rate
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- 0 – 200 °C: ≤ 10 °C/min
- 200 – 700 °C: ≤ 6 °C/min
- 700 – 900 °C: ≤ 3 °C/min
- 900 – 1100 °C: ≤ 1 °C/min
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| Cooling Rate |
- 1100 – 800 °C: ≤ 5 °C/min
- 800 – 200 °C: ≤ 10 °C/min
- 200 – 0 °C: free cooling
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Heating Zone
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- Three heating zones: 150 mm + 150 mm + 150 mm
- Total heating zone length： 450 mm
- Constant temp. zone: 280 mm ±1°C
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Temperature Gradient
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- The furnace is able to achieve a temperature gradient up to 19 °C/inch (150 °C / 200 mm), if
- The Center zone is heated up to 1000 °C
- Left and right zones remain idle
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| Heating Element |
- Fe-Cr-Al Alloy doped by Mo
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| Thermocouple |
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Temperature Control
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- Three precision digital temperature controllers with 30 programmable segments and +/- 1 ºC accuracy
- Safety protection of over-temperature and broken thermocouples are integrated
- PC control software is available at an extra cost
- Eurotherm 3000 controller with +/-0.1°C accuracy is available upon request at the extra cost.
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Process Vessel |
- Made of Nickel-based superalloy GH747(Click to download GH747 nickel-based alloy datasheet)
- Size: 85 mm OD x 50 mm ID x 1000 mm L
- Working gasses: O2 and inert gasses such as N2, Ar, and He
- Small quartz or alumina boat should be used to load the sample inside the tube. Never place the sample directly onto the tube without a crucible, which may greatly shorten the processing tube service-life
- Warning: Never put the sample inside the tube directly without crucible or isolated foil to avoid sample react with tube alloy.
- You may use gold or nickel foil to wrap the crucible to minimize the contamination to the pressure vessel.
- Attention: The processing tube is consumable. Pls click the photo below to order a spare one
   
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Pressure Sensor and Valve
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- A pressure gauge with a range of 0 – 25 MPa and an over-pressure alarm is installed (downstream side)
- A pressure control valve with a working range of 0.2 – 15 MPa is installed (the upstream side with a 1/4" BSPP venting port)
- If the measured pressure reaches the high-pressure alarm value, the pressure control valve will be opened until the pressure drops 0.2 MPa (2 bars) below the alarm value
- The manual pressure relief valve is installed for manual pressure control and relief (the downstream side with 1/4" BSPP gas outlet port)
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High-pressure relief valve
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- A safety pressure relief valve is recommended (the upstream side with 1/4" NPT venting port)
- Please info us of your application temperature and we will pre-set the release pressure for you. For example, you need to heat to 800C, the Max working pressure should be 140 bars, we will pre-set the relief valve to 140 bars.
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Flange and Fitting |
- A pair of 63 mm CF-type flanges are included. Please use a torque wrench (optional, not included) to avoid over-tightening the flange bolts.
- 2 pieces of copper O-rings (99 mm OD x 82 mm ID x 2.2 mm thickness) are included. Please order extra copper O-rings as consumable parts
- A pair of cooling fans are included for air cooling the flanges
- One mobile cart with installation holes is included for easy setup and immediate use
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Optional Parts
(with extra cost)
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- Please order heavy-duty rotary vane vacuum pump EQ-YTP-50 for low vacuum operation (Pic #1)
- If a high vacuum is needed, please use the turbopump station – EQ-PV-HVS2 (Pic. #2), which can reach 10-6 torr vacuum
- Gas flow control system is available upon request (Pic. #3)
- Please use a torque wrench (optional, not included) to avoid over tightening the flange bolts (Pic. #4)
- To measure the electric properties of thermoelectric ceramics under high pressure & high temperature, please order alumina fixture and high-pressure electrical feedthrough (10 MPa max) with the furnace at extra cost (Pic. #5 & #6)
 1 2  3  4  5  6 |
| Power |
- AC 208 - 240V 50/60Hz, single phase
- 3.8 KW (25 A breaker required)
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| Operation Instruction |
 
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Compliance and Warranty
 
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- CE certified
- NRTL or CSA certification is available upon request at the extra cost.
- One year limited warranty for lifetime support
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Safety Notes
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- Ni-based Superalloy ( Waspaloy or equivalent) is a reliable processing tube, which has excellent ductility and tensile property so only creep deformation happens under overpressure before a cracking.
- Please see pics left to see Ni-based Super-alloy ( Waspaloy or equivalent) processing tube under overpressure test
- Attention: For the use of flammable, toxic, or corrosive gases, you must contact the MTI engineering group for a consultation to know all the prerequisites and precautionary measures.
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