Our expander rolls eliminate wrinkles and cracks on the coated surface of metallic foils caused by temperature change!
Product overview
| Type of sheet (web) | Metallic foils for lithium-ion batteries (aluminum foils, copper foils) |
|---|---|
| Customers’ problems | Wrinkles generated during heat press / wrinkles generated during cooling, cracks generated on the coated surface |
| Assembly position of an expander roll | After heat press / before the cooling roll |
| Solutions offered by our expander rolls | Our expander rolls apply a uniform spreading force in the width direction and remove wrinkles during pressing. Our expander rolls also suppress shrinkage of the coated surface during cooling and prevent cracks on the coated surface. This helps improve the line speed. |
| Recommended products | The design is compact, and it is easily retrofittable! The amount of spreading can be adjusted depending on the status of wrinkles. →Rubber Compact Variable Bow Expander Roll （low-torque type） The amount of bow can be freely adjusted from 0 mm! →Rubber Straight Variable Bow Expander Roll（low-torque type） |
| Product lineup （All the applicable products are available as a low-torque type.） |
Rubber Compact Variable Bow Expander Roll Rubber Expander Roll Steel Expander Roll |
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