Slit dies

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Ultra-precise grinding technology provides slit dies that are key to quality thin-film coating

Coaters used for coating flat panels and film must provide uniform thickness, free of unevenness or streaking. Slit dies are key to retaining this quality.
Our unique technology allows us to produce slit dies with top-level surface and slit precision. These dies are used in Toray’s own production equipment.

Applications

  • Liquid coating, etc.
  • Coating of flat-panel displays and film

Features

  • Support provided for small and large parts. High precision provided on matching surfaces, even at large sizes.
  • Structural design provides for ease of use, making it simple to assemble and adjust dies.
  • Parts up to 3700 mm long can be manufactured.
  • Undercut at lip edge finished to 5 or below.
  • Can be made with SUS, SKD, and other materials.

Product machining examples

Ultra-finish grinding can produce micron-order surface precision even at large sizes.

  • Maximum work size:Approx. 3700 mm
  • Material: Stainless steel / carbide / ceramics
Length Slit width Lip edge Lip Interior Manifold
Precision Straightness Flatness Finish roughness Finish roughness
300mm R2μm 3μm 3μm 0.1s 0.4s
500mm R2μm 3μm 3μm 0.1s 0.4s
1000mm R3μm 3μm 3μm 0.1s 0.4s
1500mm R5μm 5μm 5μm 0.1s 0.4s
2000mm R5μm 8μm 8μm 0.1s 0.4s
2500mm R5μm 10μm 10μm 0.1s 0.4s
3000mm R5μm 10μm 10μm 0.1s 0.4s

Please consult with us about precision requirements.

The main technologies used for this product are here

Please consult in such a case