Three Zone Rotary Tube Furnace with 5" Quartz Tube, 1200C Max. - OTF-1200X-5L-R-III

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Item Number OTF-1200X-5L-R-III

The OTF-1200X-5L-R-III is a CE certified rotary tube furnace with three heating zones designed for calcining inorganic compound. Given the ability to achieve better compound uniformity, the furnace is especially good for preparing Li-Ion battery cathode materials with conductive coating, such as LiFePO3, LiMnNiO3, etc in R&D Laboratory. This rotary furnace has larger tube diameter (5"OD) combined with a longer and more uniform heating area (three zones, 900mm overall length).


Furnace Construction
  • Double shell casing with three cooling fans
  • High purity Alumina fibrous insulation for max. energy saving
  • Gear DC motor drives quartz tube with variable speed 0 - 10 RPM
  • The furnace can be tilted up to 30o by electricity.
  • Split cover enable faster cooling and easy operation
Heating Zone length
  • Two zones: each zone length 8" (200 mm), total 16" (400 mm) heating zone
  • Constant temperature zone: 150 mm within +/-1oC if two zone at same temperature.
Processing tube & Sealing Flange
  • Standard:  Fused quartz processing tube , please click the pics below for details :

Four Mixing Blades                    Dimension
  • One pair of 60mm SS sealing flange with needle valves and rotable gas connector  is included for immediate use
  • Optional:High Purity Graphite Tube (2.36'' O.D x 2'' I.D x 48'' L), please click the pics below for details:
Gas Fittings
Inlet Fitting: Elbow Push-in connector for 6mm O.D tube; Outlet Fitting:  Elbow Push-in connector for 12mm O.D tube
Max. Working Temperature 1100 °C for continuously 1200 °C Max for < 2 hours
Temperature Controllers
Two PID digital temperature controller with 30 segment programmable
Temperature Uniformity
+/- 1°C in heating Zone
Tube rotating Speed
0 - 10 RPM variable
Furnace tilt angle
Left: 0~30° ; Right: 0~15°
Chamber pressure
4.5x10-2 torr (<0.1mtorr/s leaking rate if close all the valves to airtight the tube chamber)
Production yield
2 kg per batch
4 KW Max
208 - 240V single phase (30 A Breaker required)
Warranty One year limited warranty (Consumable parts such as processing tubes, o-rings and heating elements are not covered by the warranty, please order the replacement at related products below.)
Certificate Furnce:          CE certified . 
CSA certificate is available upon at extra cost
Components:   Temperature controller is UL or Met certified.  
Furnace dimension:
Product net weight
Shipping dimension 49" x 40" x 70"
Shipping weight 500lbs

The tube furnaces with quartz tube are designed for using under vacuum and low pressure < 0.12 MPa (absolute pressure)




Premier Solutions Pte Ltd / MTI Corporations - Three Zone Rotary Tube Furnace with 5" Quartz Tube, 1200C Max. - OTF-1200X-5L-R-III


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