Browse Categories

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

In stock
Item Number: OTF-1200X-RTP-4-SL
Transported by LTL Freight (Truck)


OTF-1200X-RTP-4-SL is an 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 the other side automatically at variable speeds using the control knob.
  • Vacuum flanges and the digital vacuum gauge are installed  for immediate use.


Voltage AC 208-240V Single Phase, 50/60 Hz
Max. Temperature
  • 1000°C (<1 hour)     
  • 800°C (<2 hours)
  • 600°C (continuous) 
Note: RTP furnaces should not be heated for long durations due to thin refractories.
Temperature Accuracy
+/ - 2°C
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 rail length: 1200 mm
  • Driven by DC motor
Sliding Control
Automatic sliding is controlled by the temperature controller.  When the heating program is finished, the furnace will slide from right to left at the set speed. Air fans will blow heated area to achieve fast cooling.
  • Sliding Range: 340mm
  • 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 & thermocouple broken protection.
  • Over temperature protection and alarm allows for operation without attendant(s).
  • +/- 1 ºC temperature accuracy.
  • RS485 Communications Port.
  • PC Control:  
    • An MTS-02 control module is included for PC control on this furnace.
    • The new version of PC module is now compatible with Lab View 05/08/2014
    • A laptop PC can be ordered for $500 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 ends of the tube.

Right flange:
  • Hinge-type flange for easy sample loading
  • 1/4"diameter  feedthrough for inserting  K-type thermal couple
  • Needle valve with barb gas fitting is built in
Left flange:
  • Digital vacuum gauge is included
  • 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
Flow Meter
 One flow-meter is built in with range: 16-160 ml/min


  • 460 x 330 x 520  mm ( furnace only)

  • 1800 x 450 x 680 mm ( furnace + sliding)
  • (click to enlarge the picture)

Net Weight

~ 80 Kg

Shipping Package Size

74" x 39" x 45"

Shipping Weight

300 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).


  • CE Certified
  • All electric components ( >24V) are UL / MET / CSA certified
  • The furnace is ready to pass TUV(UL61010) or CSA certification at extra cost. ( please click marks below to learn details )


Application Notes

Click here to learn the installation of a gas regulator

  • Tube furnaces with quartz tubes are designed for using under vacuum and low pressure < 0.12 MPa (absolute pressure).
  • 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 the installation of a gas regulator.
  • The flow rate for gasses should be limited to < 200 SCCM (or 200 ml/min) for reducing thermal shocks to the tube
  • Vacuum limit definition for all quartz tube furnaces: * Vacuum pressures may only be safely used up to 1000°C
  • Click here to learn How to set up quartz/ ceramic tube and vacuum flange for MTI Tube furnace.
  • Quartz tubes should be replaced after every 10th use to ensure the best performance. 
  • Samples should never be placed on the tube directly; please order crucibles and boats from here.
  • After CVD, the graphene must be transferred from the metal catalyst to another substrate for most applications. By using the graphene transfer tape, the residue can be low.

Operation Instructions


Related Products

Shopping Cart
Your cart is empty.
Please clear the browsing history before ordering the product. Otherwise, availability and price are not guaranteed.
Mailing Lists
MTI sponsors MTI-UCSD Battery Fabrication Lab:
MTI-UCSD Battery Fabrication Lab Opening

MTI sponsors MRS and ECS Postdoctoral Award:

MTI Sponsors the Postdoctoral Awards

Upcoming Shows:
BPS 2018 62nd Annual Meeting Biophysical Society Feb 17-21 San Francisco CA Booth 909

2018 SME Annual Conference & Expo Feb 25 - 28 Minneapolis, MN Booth 701

Recent Attended Shows:
2017 MRS Fall Meeting and Exhibit Nov 26 - Dec 1 Boston, MA

2017 MMM Conference Nov 6-10 Pittsburgh, PA

Zhejiang University MSE Visiting Oct 31 Richmond CA

Click here to see our past conferences


1. Prices listed online are valid for US market and whom pay by credit card only. There will be extra charges for shipping & handling. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor cost.
3. The prices listed are subject to change without notice.