Slot dies

MITSUBISHI MATERIALS HARDMETAL CORPORATION has produced high-precision slot dies using our superior processing technology and under strictly controlled temperatures.

Our slot die coating tools are used for the precision coating of liquid crystal panels, lithium-ion secondary batteries, highly functional films, and other products.
The tips support a wide range of applications, meeting needs such as wear resistance and corrosion resistance. (Customization is possible.)

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Features
Applications
Product Specifications/Summary
Terminology
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Features

Features of MITSUBISHI MATERIALS HARDMETAL slot dies

Meeting the next-generation needs of ultra-precise coating technologies, our slot dies support all kinds of film thickness coatings, from LCDs to lithium-ion batteries.
The features include our original adjustment mechanisms, support for a wide range of applications and fluids, choice of tips (stainless steel/carbide), and long tool life.
With our extensive expertise in fluid and structural analysis, MITSUBISHI MATERIALS HARDMETAL CORPORATION meets customers’ needs and increases coating precision.

Applications

Slot dies are used in a wide range of applications

Optical films
Highly functional films
Lithium ion batteries
Solar cells
Fuel cells
LCDs
OLEDs
Smartphones

Touch panels
Capacitors
MLCCs
Perovskite Solar Cell
Solid-state battery

Product Specifications/Summary

Choice of tip materials and slit width adjustment mechanisms

Carbide tip slot die　Special corrosion-resistant alloy slot die
Slot die (tips: stainless steel) 　Slot dies with a slit adjustment mechanisms (bolt, hydraulic, libero, or T-bar adjustment)
Custom sizing (example)

Slot die length : 3800 mm max.　・Dry film thickness: 10 nm to 0.7 mm
Wet film thickness: 3 μm to 1 mm　・Coating liquid viscosity: approx. 1 cps to 50,000 cps

Rental Service　

We offer a rental service so you can evaluate the excellent performance.
Several types are available for rent so you can check the performance of Slot dies.
You can choose the slot die according to the customer's purpose and coating conditions.

Coating test

We have a glass-coating test coater which enables coating tests.
We carry out coating tests according to the customer's coating conditions.Please feel free to contact us.

Simulation

Using analytical techniques, we propose the slot die shape that best meets our customers' requirements.

・Fluid Analysis　
The fluid analysis simulates the inner pressure of the manifold and deviation of the coating thickness, and the manifold shape can be optimized based on these results.

・Slot Coating Bead Analysis
We can simulate the coating bead between the lip edge and the substrate in 2 & 3 dimensionally, and check the variation of the coating thickness in the feed direction and any coating defects.

・Structural analysis
Based on the results of the inner pressure from fluid analysis, we can simulate the deformation of the slot die.

Terminology

TF15: Micro-fine cemented carbide with the exceptional advantages of high strength and toughness. TF15 grade cemented carbide optimizes strong edge sharpness and high breakage resistance.