Roll to Roll Coater/Dryer RT-700F /RT-T700F

The technology of high-precision slit coating system, the No.1 coater for TFT arrays for LCD worldwide, has been adopted to electrode coater. 
What's more, the drying system features high speed drying process while preventing migrations. The coater/dryer is suitable for production of high-spec. rechargeable Lithium-ion battery (LiB) for electric vehicles.


Uniform coating

  1. RT-700_omg01.jpgEasier adjustment of coating thickness
    The coating thickness can be finely adjusted simply by inputting the angle of the nozzle and gap between the nozzle and base material via the operation panel. This ensures a uniform coating thickness regardless of the skill of the operator.
  2. Reduced material accumulation and coating errors
    Circulation of coating material, including that inside the nozzle, continues during standby. This reduces unevenness and coating errors caused by material accumulation and helps to achieve consistent coating performance.
  3. Automatic adjustment of width positioning for front and rear sides
    The coating area for the front side is detected using a sensor and fed back to the nozzle position. This value is then used to automatically align the rear side.
  4. Optimal coating thickness formation during intermittent coating
    The valve speed and timing can be controlled with great precision, providing enhanced adjustment of coating thickness formation.

High speed dryig

Original drying system supports both high quality and productivity.

  1. RT-700_omg02.jpgProprietary drying system enables high-speed processing
    The system effectively combines slit-shaped, high-speed discharge of hot air with rapid suctioning of atmospheric humidity. Together these features keep the humidity of hot air brown above the electrode materials consistently low, achieving extremely quick drying.
  2. Controls migration and increases drying speed
    The air volume for each hot air nozzle can be adjusted independently, helping to reduce migration and also preventing segregation of the binder. With this precise control, it is possible to create a profile that offers maximum drying speed.*
* Based on our own comparative evaluation, drying times can be reduced by 20%.



Model name RT-700F (single type) / RT-T700F (tandem type)
Coating method Slit coating (Die coating)
Base material Alminium foil, Copper foil
Base material width Max. 700 mm
Coating width Max. 690 mm
Transfer speed Max 80 m/min.
Coating material Electrode material
Coating thickness Max. 250um
Coating pattern Continuous, striped, intermittent
Hot air chscharge temp. Max. 150℃

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