Electric motors require high-performance electrical steel strip. It is especially suited to use in electric car engines, which can have an RPM several times higher than industrial electric motors. Our non-grain-oriented electrical steel strip featuring a thin strip thickness (NO grades) provides the best possible foundation for this technology.
Because of their good permeability (penetrability for magnetic fields) and low core losses (conversion of a portion of the energy into heat due to eddy currents), our NO grades are ideal for high-frequency applications. A very low nominal thickness starting at 0.1 mm (see the table “Thin electrical steel strip”) also contributes to this purpose. This reduced material strength minimizes the occurrence of eddy currents (see the “Eddy current” infographic) in laminated electrical steel strip stacks, making the material suitable for high-frequency applications. All NO grades can be combined with bonding varnish or with traditional insulating varnishes. We also produce NO grades in an HS grade (high-strength) variation, which has especially high yield strength.
Waelzholz’s NO grades are the first choice for medium to high-speed electric automotive drive systems. Our thin, non-grain-oriented electrical steel strip from a nominal thickness of 0.1 mm offers a high power density with excellent permeability and low core losses.
Many industrial products are equipped with high-speed electric motors, such as electric vacuum cleaners, food processors, and garden tools. Our thin, high-strength NO grades offer low weight and high performance thanks to low eddy current losses.
Are you interested in testing the performance of our electrical steel strip for yourself, including the available coating systems? We offer samples of our entire range of materials for initial testing purposes. You can request your own personalized sample by clicking the button on the right and specifying the desired grade, coating type, and layer thickness.
Sheet thickness is a decisive factor when it comes to core loss in electrical steel strip. It has a disproportionate impact as frequency increases. The low nominal thickness of the NO grades (starting at 0.1 mm/ 0.004") guarantees minimal performance loss, resulting in significantly higher output at the same energy input.
