Manufacturing Excellence for Critical Circuit Protection Components

Jiangsu Lantai (Kaerda) specializes in the precision manufacturing of Sheet Molding Compound (SMC) components critical for the safety and performance of Air Circuit Breakers (ACB), Molded-Case Circuit Breakers (MCCB), and broader switchgear assemblies. Our SMC molded circuit breaker housings, covers, bases, and other insulation/structural parts serve as the foundational elements within these vital electrical systems. We utilize specifically formulated SMC materials, engineered by Kaerda, to provide superior electrical insulation, robust fire resistance, and exceptional mechanical strength. Our advanced manufacturing processes ensure that each component meets the stringent demands of the power distribution and control industry.

The integrity of our SMC molded parts is ensured through meticulous attention to material properties and molding precision. Kaerda’s SMC formulations for electrical applications are designed for high dielectric strength and excellent dimensional stability, even under varying temperatures and mechanical stress. These components reliably support and insulate critical internal parts such as vacuum bottles, arc chutes, and busbars. We focus on achieving high Relative Thermal Index (RTI) values and consistent material quality, ensuring long-term reliability and safety in high-voltage environments. The inherent properties of our SMC also provide excellent resistance to tracking and electrical erosion.

  • SMC formulated for high dielectric strength, fire resistance (e.g., VO according to UL94), and thermal endurance.
  • Precision molding ensures complex geometries and tight tolerances for perfect assembly.
  • High mechanical strength for robust structural support within switchgear units.

Advanced Technology in Molding SMC for Electrical Safety

Kaerda (Jiangsu Lantai) employs advanced technology throughout its SMC production and molding processes to manufacture superior components for circuit breakers and switchgear. Our facilities are equipped with 5 advanced SMC sheet production lines and a versatile array of 16 different tonnage compression molding machines, including large-capacity presses (e.g., 2500T). This robust infrastructure enables the efficient, high-volume production of diverse and intricate SMC parts essential for electrical safety and functionality. Automated controls in our compounding and molding operations ensure tight control over material consistency, cure cycles, and dimensional accuracy, leading to components that consistently meet the high-performance criteria for electrical insulation, mechanical integrity, and fire resistance demanded by the switchgear industry.

Material Optimization

State-of-the-art SMC compounding and sheet production for optimized material properties.

Structural Precision

High-tonnage precision compression molding for complex, dimensionally stable electrical components.

Expert Solutions & Collaborative Design for Switchgear Components

The reliability of modern switchgear depends heavily on the quality and design of its core structural and insulating components. Kaerda (Jiangsu Lantai) brings extensive expertise in composite materials science to the switchgear industry, understanding both the intricacies of SMC molding and the specific performance demands of circuit breaker applications. Our dedicated R&D and engineering teams work collaboratively with switchgear manufacturers, such as those in the league of Schneider, Siemens, and GE, to develop custom SMC formulations and component designs. We focus on optimizing properties like insulation resistance (e.g., 2X10^4 MΩ at 500V DC), flame retardancy, mechanical strength, and thermal endurance (high RTI) to meet or exceed industry standards and specific client needs. This collaborative approach ensures that Kaerda’s SMC molded parts provide a robust, reliable, and precisely engineered foundation for all other critical elements within circuit breakers and switchgear assemblies.

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Kaerda factory

Kaerda (Jiangsu Lantai) pioneers advanced composite materials like SMC, BMC, and Prepregs, delivering custom molded solutions and driving innovation across diverse industries.

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