Browse Categories

Two Zones CSS Furnace With Rotating Wafer Holder up to 5x5" at Max.800C - OTF-1200X-RTP-II-5-R

Please email for lead time
Item Number: OTF1200XIIRTPR5
Transported by LTL Freight (Truck)


Upgrade to Eurotherm Temp Controllers (Dual )
OTF-1200X-RTP-II-5-R is an advanced rapid thermal processing furnace with 11" I.D. quartz chamber and 5“x5" rotating sample holder. It is designed for CSS (Close Spaced Sublimation) film coating up to 5" circular or square wafer samples at the working temperature of 800°C Max. The furnace is heated by two groups of halogen heaters (Top and Bottom) separately with max. 10ºC/s heating rate. The top sample holder is rotatable to achieve high uniformity coating. It is an excellent tool to research new generation thin film for solar cells, such as CdTe, Sulfide, and Perovskite solar cell. 

Furnace structure 

  • Furnace, two temperature controllers, two-channel gas flowmeters are integrated into a mobile aluminum alloy frame.
  • The chamber is made of high purity fused quartz tube with the dimension of 11" OD/10.8" ID x 9" H.
  • The vacuum flanges are made of Stainless Steel 316 and lifting by the electric motor.
  • Two 5"x5"  IR heating plates and the spacing are adjustable.
  • Top sample holder is rotatable at the speed 0 - 7 RPM.
Vacuum Flanges
  • Top Flange with one KFD-25 vacuum port and one gas outlet (1/4" pipe required) can slide up or down manually to load and unload substrate and evaporated material easily.
  • Bottom flange has one KFD-25 vacuum port with one gas inlet (1/4" pipe required) with needle valves.
  • The flange is sealed by double silicone o-rings and can achieve max. the vacuum pressure of 10E-2 Torr by a quality mechanical pump and 10E-5 Torr by a molecular pump (vacuum pump is not included, please order separately).
  • One digital vacuum gauge is installed on the top flange.  
  • Precision anti-corrosion digital vacuum gauge is in standard package(Since 2016.03.24).
Heater and Sample Holder

  • Two independently controlled heaters with manually adjustable gap from 2 - 30 mm. 
  • 20 pcs Halogen lamps are used as the heating element for rapid thermal processing.
  • Heaters are made of stainless steel with water cold jacket to reduce heat radiation and are capable of fast cooling.
  • 5" Dia. the circular wafer holder is built into the top heater for holding the substrate.
  • One set of high thermal-conductive AlN plates (5" Dia. x 0.5mm Thick) are included (place on the back of the substrate to make it heat uniformly).
  • A 58L/min circulating water chiller is included for saving water source ( click the picture below to see detailed specs).
  • Top sample holder is rotatable at adjustable speed  0 - 7 RPM

Temperature Controller

  • Two precision digital temperature controllers with 30 segments programmable offer independent controlling of top and bottom heaters.
  • Each controller has a PID autotune function to protect heaters from overshooting and an alarm function to prevent overheating from damaging the thermal couples.
  • PC communication interface & software are installed for (click the picture below for details) recording temperature profile shown as below.

Working Temperature
  • The maximum temperature for each heater: ≤ 800ºC.
  • The maximum temperature difference between the two heaters: ≤ 300ºC depends on the spacing between two heaters:
    • Spacing 30mm       Max. temp difference:  315ºC @ heating bottom only
Heating & Cooling Rate
  • Heating: < 8ºC/s ( heating single heater only )
  • Cooling: < 10ºC/s (600 - 100ºC) Max.
Thermal Couple   Two K-type thermal couples are installed on top and bottom heaters separately.
Working Voltage   208 - 240VAC, single-phase, 50A air breaker
Power Requirement   10 KW  total 

( click pic to see dimension )
Shipping Weight & Dimension
  • Two pallets: 525 lbs   and 48" x 40" x 87" and 165 lbs with 39x31x29" dimension


  • One vacuum pump is required. Please order separately by clicking the first picture from the left below. The vacuum level can reach ≤ 10E-2 torr by a mechanical pump. 
  • If using corrosive gas, please use a cold trap or anti-corrosive dry pump as in picture 2-3 at extra cost.
  • You may choose digital MFC gas delivery system by clicking the first picture from the right below.
Warranty One year limited with lifetime support ( Consumable parts such as quartz tube and heating lamps are not covered by the warranty).
  • CE Certified
  • UL / MET / CSA Certification is available upon request, additional charges will apply.
  • Temperature controller is MET and CE Certified.
Operation Instructions           

Application Notes & Warnings

  • The tube furnaces with quartz tube are designed for use under vacuum and low pressure < 0.2 bars / 3 psi / 0.02 Mpa. Vacuum pressures may only be safely used up to 1000°C. The flow rate for gasses should be limited to < 200 SCCM (or 200 ml/min) for reducing thermal shocks 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 the installation of a gas regulator.
  • The foot-stand of this furnace is designed for short-distance hauling on the even surface (without pits or bumps) only.
(Please click right to see related articles)

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 sponsorships:
MTI Sponsors Thermoelectrics Workshop

MTI-UCSD Battery Fabrication Lab

MTI-VISTEC Cylindrical Cell  Pilot Line

MTI Sponsors the Postdoctoral Awards

Upcoming Shows:

AABC USA 2021 December 7 - 9 San Diego CA Booth 429

Recent Attended Shows:
IMAT Virtual Edition October 26 - 28

TMS 2020 Feb 23 - 27 San Diego CA Booth 700

AABC Europe Jan 12 - 16 Wiesbaden Germany

Click here to see our past conferences


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. Price various from country to country.
2. We may add extra charges for paper order and net30 terms due to extra labor costs.
3. The prices listed are subject to change without notice.