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Motor & Transformer Laminations

7 Verified Suppliers

Racine Stamping Corp. Racine, WI Providing custom precision stampings since 1946 About PhoneEmail Website

Fred R. Rippy, Inc. Whittier, CA

Lamination Specialties, LLC Chicago, IL

Superior Services, LLC Hanceville, AL

Tempel Steel Co. Levittown, PA

Tempel Steel Co. Buena Park, CA

Tempel Steel Co. Chicago, IL

The laminations industry for motors and transformers plays a crucial role in the manufacturing of electrical devices. Laminations are thin sheets of electrical steel, typically silicon steel, used to construct the cores of transformers and electric motors. These sheets are stacked together to form a core, which reduces energy losses due to eddy currents. The process of creating laminations involves cutting the steel into precise shapes, often using stamping or laser cutting techniques. The sheets are then coated with an insulating material to prevent electrical currents from flowing between them, further minimizing energy loss.

In transformers, laminations form the core around which the primary and secondary windings are wrapped. This core is essential for the efficient transfer of electrical energy between circuits through electromagnetic induction. In electric motors, laminations make up the stator and rotor cores, which are critical for converting electrical energy into mechanical energy. The use of laminated cores in these applications enhances performance by improving magnetic properties and reducing heat generation.

The materials used in laminations are primarily electrical steels, which are alloys of iron with silicon. The silicon content, typically ranging from 1% to 3.5%, increases the electrical resistivity of the steel, reducing eddy current losses. Grain-oriented electrical steel is often used in transformer cores due to its superior magnetic properties in a specific direction, while non-grain-oriented steel is common in motor applications where magnetic properties are needed in multiple directions.

Laminations serve various industries, including power generation, automotive, and industrial machinery. In power generation, transformers with laminated cores are essential for distributing electricity efficiently across power grids. In the automotive industry, electric motors with laminated cores are integral to electric and hybrid vehicles. Industrial machinery relies on efficient motors to drive equipment and processes, making laminations a key component in manufacturing and production environments. The laminations industry supports the development and operation of energy-efficient electrical devices, contributing to the overall efficiency and sustainability of electrical systems.