Small-Diameter Gravure Coater

The small-diameter gravure coater is used for thin film coating. The method here involves, with a small-diameter gravure roll, a doctor blade, a liquid pan, and a pump, rotating the gravure roll in the opposite direction from the flowing direction of the base material to create a pool of liquid between the base material and the gravure roll to be used for coating.

Features

  1. Ultra-thin film coating with a wet thickness of 1 μm.
  2. The film thickness of a single gravure roll can be slightly adjusted by changing the peripheral speed of the gravure roll.
  3. Without any backup roll, no liquid is on the backside.
  4. Coatings with a thickness of 1 to 50 µm.

  • Roll Layout

  • Demonstration Machine

Roll Volume (Type of Engraving)

Oblique

This can be used when the coating liquid is highly viscous and more transferring is required. A doctor blade can be used together.

Cells/Inch Depth（μ） Cell Volume in cm3/m2
35 250 124
42 190 94.2
60 180 89
70 114 56.2
70 150 74
80 130 64
90 90 44.2
100 77 37.7
100 60 29.4
120 80 39
130 69 33.6
130 55 26.8
150 55 26.7
150 50 23.5
180 49 22.7
200 35 16.8
230 20 9.5

Roll Volume Accuracy

Volume accuracy of 3% or less is achieved.