In the modern electromagnetic industry, magnetic conductive plates serve as key functional materials. Their core role is to guide the concentrated distribution of magnetic fields and suppress electromagnetic interference, making them vital for optimizing efficiency. Today, they are widely used across multiple fields, including motors, electronic equipment, and industrial manufacturing.
Among these materials, Class F and Class H magnetic conductive plates have become the mainstream choices, adapting to different working conditions by virtue of their differentiated heat resistance and mechanical properties.
Class F Magnetic Conductive Plates: Cost-Effective Industrial Standards
Class F magnetic conductive plates are identified by a core temperature index of 155°C. Mostly composed of soft magnetic composites such as ferrite, they offer moderate magnetic permeability and mechanical strength.
- Cost-Performance Balance: Because they offer high reliability with highly controllable production costs, they are one of the most widely used magnetic conductive materials in the industrial field.
- Ideal Working Conditions: They are perfectly suited for medium-to-low temperature and medium-load working environments.
- Core Applications:
- Wind Turbines: Used as magnetic slot wedges to effectively connect the stator inner ring magnetic circuit and optimize electromagnetic performance.
- Standard Machinery: Applied in ordinary industrial motors, household air conditioning compressors, and small transformers.
- Electromagnetic Shielding: Utilized in electronic equipment where heat resistance requirements are not high.
Class H Magnetic Conductive Plates: High-Temperature and High-Load Powerhouses
When applications demand more extreme thermal stability, Class H magnetic conductive plates stand out with their high-temperature resistance of 180°C and above. These are manufactured by hot-pressing alkali-free glass fiber cloth impregnated with resin and combined with Class H magnetic powder materials, offering superior mechanical strength.
- Thermal and Noise Reduction Advantages: They avoid thermal aging and softening during long-term high-temperature operation. This effectively reduces motor loss and temperature rise while decreasing operational noise.
- Core Applications:
- Specialized Motors: Focused on high-temperature, high-load, and high-requirement scenarios like high-speed motors and high-power generators.
- New Energy Vehicles (NEVs): Employed in NEV electronic control modules to ensure stable operation under harsh conditions.
- Industrial Instruments: Crucial for industrial instruments operating in high-temperature environments, ultimately improving overall energy efficiency and safety.
Selection Guide: Choosing the Right Grade for Your Needs
The selection between Class F and Class H must always be based on actual working conditions.
For ordinary industrial production and civil electronic equipment, Class F plates offer outstanding cost-performance and can meet basic magnetic conductivity and electromagnetic shielding needs. These 155°C rated materials provide a reliable solution for projects where cost control is as important as technical performance.
However, for scenarios such as special motors and high-end electronic equipment with high temperatures and high loads, the advantages of Class H plates are indispensable. With a resistance of 180°C or higher, Class H materials ensure that critical components do not suffer from thermal aging or mechanical failure under extreme stress.
Conclusion
As industries evolve with 5G, the Internet of Things (IoT), and new energy technologies, the performance requirements for magnetic conductive plates continue to rise. Both Class F and Class H materials are constantly being optimized through formula improvements to adapt to more segmented scenarios. Precisely matching these materials to your application requirements ensures a perfect balance between equipment performance and cost.
RDS professionally produces high-quality electrical insulation materials, with magnetic conductive plates being one of our key product highlights. We can provide you with full-size plates or custom-process them into slot wedges according to your specific drawings.
Have questions about which class is right for your project? Contact RDS today to get expert advice and a custom quote!