Aichi Steel MAGFINE Sheet Adds Flexible Magnetic Components

Aichi Steel Develops Thin and Flexible MAGFINE Sheet

On August 31, Aichi Steel Corporation announced the development of Aichi Steel MAGFINE Sheet, a thin and flexible magnetic sheet added as a new product to its MAGFINE line of anisotropic Nd-Fe-B bonded magnets. The company has begun offering samples for evaluation. The sheet is available in thicknesses ranging from 0.3 to 1.5 mm, allowing it to be installed on curved surfaces and in confined spaces where conventional magnetic components may be difficult to integrate. The product is intended for magnetic components used in sensors, thin-profile motors and actuators, speakers, and vibration devices, expanding potential applications where compact form factors and flexible installation are important.

New Magnetic Powder Orientation and Sheet-Forming Technologies

The new product combines Aichi Steel Corporation’s proprietary fine magnetic powder with newly developed technologies for magnetic-powder orientation and sheet forming. Its maximum energy product ranges from 103 to 143 kJ/m³, equivalent to 13 to 18 MGOe. Despite its thin and flexible construction, the sheet is designed to maintain the magnetic force required for its intended applications. This capability can support efforts to make automotive equipment smaller and lighter while also simplifying assembly processes. The combination of magnetic performance, thin construction, and installation flexibility is particularly relevant to components that must fit into curved structures or limited installation spaces.

Rare-Earth Material Strategy and Customer Evaluation

The MAGFINE Sheet does not use the heavy rare-earth elements dysprosium (Dy) or terbium (Tb), which can help reduce raw-material procurement risks associated with these materials. Aichi Steel Corporation plans to develop applications through customer evaluations of the samples. The company aims to use these evaluations to identify practical applications and secure adoption of the magnetic sheet in customers’ new products. By combining a flexible sheet structure with anisotropic Nd-Fe-B bonded magnet technology and avoiding Dy and Tb, the product is positioned to address both component-design requirements and raw-material procurement considerations in future applications.

Frequently Asked Questions

What is Aichi Steel MAGFINE Sheet designed for?
Aichi Steel MAGFINE Sheet is a thin, flexible magnetic sheet designed for applications requiring compact magnetic components that can conform to curved surfaces or fit into confined spaces. It is intended for sensors, thin-profile motors and actuators, speakers, and vibration devices, while supporting smaller and lighter automotive equipment and simpler assembly processes. The sheet ranges from 0.3 to 1.5 mm in thickness and delivers a maximum energy product of 103 to 143 kJ/m³, or 13 to 18 MGOe, without using dysprosium or terbium.