OTF-1500X-II is a split two-zone tube furnace with a alumina tube and conventional flange working up to 1500°C. Two 30 segments of temperature controllers are installed with S-type thermal couples and +/ - 1°C accuracy. It is an excellent furnace for exchanging processing tubes for multi-purpose.
SPECIFICATIONS:
| Power Input |
6KW |
| Working Voltage |
208V - 240V AC Single-phase 50/60Hz ( 40 A breaker required) |
| Working Temperature |
1500°C Max. for a short time 1400°C Continuously |
| Recommend Heating rate |
5°C/min. |
| Processing Tube |
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Alumina Ceramic Tube: 80 O.D x 74 I.D x 1000 L, mm (Pic.1)
- Optional mullite tube at extra cost: 80 O.D x 73 I.D x 1000 L, mm
- Stainless steel vacuum sealing flange with valve and meter is included.
- The thermal blocks are included.
- You may order flange support to avoid tube rotating (Pic.2)
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| Heat Zone Length |
- Two heating zones: 200 mm/ each (including 20 mm spacing)
- Total zone length: 390 mm
- Constant Temperature Zone length: 200mm (if set 2 zones at the same temperature) +/- 2ºC.
- Accept processing tubes up to 100 mm in diameter
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Temp. Profile at 1400ºC |
(click to enlarge) |
| Temperature Controllers |
- 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 allow for operation without attendant(s).
- +/- 1 ºC temperature accuracy.
- Two S-type thermocouples (one for each zone).
- RS485 Communications Port.
- Optional:
- The furnace may be operated by a PC by installing a control module. Please order an MTS02 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 order a computer laptop from us to avoid software installation problems. For more information please click here.
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| Vacuum Level |
- 10E-2 torr by a quality mechanical vacuum pump
- 10-5 torr by the molecular pump
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| Heating Elements & Thermal couples |
- 16 pcs 1500ºC grade Silicon carbide rod (14 mm Dia. x 150 mm heating x 413 mm length), which is consumable, and not covered by warranty. Please click the picture below left to order spare and replacement
- 2 pcs S type thermal couple built-in
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Laptop, software & WiFi Control(Optional)
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- Brand new laptop with Microsoft Windows 10 and Microsoft Office 2013 (30 days free trial)
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Labview Based Temperature Control System (MTS01)enables the user 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.
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Application Notes

Click here to learn more about the installation of a gas regulator.
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- The tube furnaces with mullite tubes are designed for use under vacuum and low pressure < 0.02 Mpa / 0.2 Bar/ 3 PSI. Vacuum pressures may only be safely used up to 1300°C. The flow rate for gases should be limited to < 200 SCCM for reducing thermal shock to the tube.
- Attention: A two-stage pressure regulator must be installed on the gas cylinder to limit the pressure to below 3 PSI for safe operation. Click here to learn about the installation of a gas regulator.
- Never heat the furnace while the gas release valve is closed and a positive pressure condition exists within the furnace chamber. The pressure gauge must be used to closely monitor the chamber condition at all times during the heating process; please open the gas release valve immediately once the chamber pressure has reached over 3 PSI to prevent unforeseeable damages.
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Compliance
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- CE Certified
- NRTL or CSA certification is available upon request at extra cost.
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