1000°C Max Slideable RTP (4'' OD) Tube Furnace with Rapidly Heating & Cooling - OTF-1200X-4-RTP-SL

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Item Number: OTF-1200X-4-RTP-SL

OTF-1200X-4-RTP-SL is a RTP (4'' OD) furnace with Infrared Light Heating and Slide Cooling. It is capable of achieving a max. heating rate > 50°C/s and a cooling rate > 10°C/s. The furnace is designed for growing graphene and carbon nanotubes by CVD.


Furnace Structure
  • Double layer steel casing with air cooling keeps furnace surface temperature lower than 60°C.
  • One set of sliding rails is installed which allows furnace move from one side to another automatically at variable speeds using the control knob.
  • Vacuum flanges and digital vacuum gauge are installed for immediate use.


Voltage AC 208-240V Single Phase, 50/60 Hz
Max. Temperature
1000°C (<1 hour)
Note : the RTP furnace cannot be heated for long durations due to thin insulator
Temperature Accuracy
+/ - 2°C
Continuous Temperature
Max. Heating Rate
50 ºC/s
Max. Cooling Rate
Cooling Rate from 900~200C :
8.3°C/sec (900 - 600°C);
4.4°C/sec (600°C - 500°C);
2.8°C/sec (500°C - 400°C);
1.6°C/sec (400°C - 300°C);
0.9°C/sec (300°C - 200°C);
Process Tube Size High purity fused quartz tube
Ø4"OD x 1400mm L
Sliding Rails / Table
  • Dual sliding rails made of Cr plated steel
  • Sliding length : 1200 mm
  • Driven by DC motor
Sliding Control
Automatic moving controlled by temperature controller. When temperature program finishes, the furnace will slide at setting speed from right to left . Air fans will blow heated area to achieve fast cooling.
Sliding Range
Sliding Speed
0-70 mm/s adjustable
Heating Elements
8 pcs Paralleled Infrared Heating ( 1200w each)
K type, 1/4" dia x 24" length

Temperature Controller

  • PID automatic control with 30 programmable segments for precise control of heating rate, cooling rate and dwell time.
  • Built in overheating & broken thermocouple broken protection.
  • Over temperature protection and alarm allows for operation without attendant(s).
  • +/- 1 ºC temperature accuracy.
  • RS485 Communications Port.
  • PC Control:
    • A MTS-02 control module is included for PC control on this furnace.
    • A laptop PC can be ordered for $900 together with the furnace. We recommend ordering a computer (laptop) from us to avoid software installation problems as we will perform installation and testing before shipping. For more information please click here.

Vacuum Flanges

Stainless steel vacuum flanges are installed on both of end tube.

Right flange:
  • Hinge-type flange for easy sample loading
  • Digital vacuum gauge is included
  • 1/4"diameter feedthrough for inserting K type thermal couple
  • Needle valve with barb gas fitting is built in
Left flange:
  • Hinge-type flange for easy sample loading
  • KF25 right angle valve is installed for connecting to a vacuum pump
  • Needle valve for vacuum release is included

Vacuum Level

Limited by vacuum pump
  • 10^-2 torr can be achieved by mechanical pump
  • 10^-4 torr can be reached by molecular pump
Vacuum pump is not included, please order separately at related products section
Water Cooling Jacket
  • Cooling water is required.
  • Please make sure the flow rate of cooling water is

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