Laminated Transformerboard is a high - performance insulating material. Composed of multiple layers of paper or other insulating materials bonded together, it offers great mechanical strength and electrical insulation. With good heat resistance and chemical stability, it effectively protects transformers. It helps improve the safety and reliability of transformer operation, widely used in the power industry. 

The Laminated Transformerboard is a high-density insulating material designed for use in power, distribution, and special transformers. Produced by laminating hot-press-dried transformerboard sheets, it achieves superior thickness uniformity and enhanced mechanical integrity, with available thicknesses ranging from 5.0 mm to 120.0 mm. The Laminated Transformerboard combines excellent electrical insulation properties with exceptional mechanical strength and dimensional stability, ensuring reliable performance even under high electrical and thermal stress.

With an apparent density between 1.15 and 1.30 g/cm³, the Laminated Transformerboard provides consistent dielectric strength exceeding 12.0 kV/mm in oil, making it suitable for high-voltage insulation systems. It exhibits minimal shrinkage, low moisture absorption, and a neutral pH level that maintains insulation stability over time. Its high oil absorption capacity enhances compatibility with transformer oils, improving cooling efficiency and extending operational life.
The Laminated Transformerboard is widely used in manufacturing pressure rings, static rings, beams, clamping plates, and support strips within transformer structures. Engineered for precision and reliability, it offers excellent machinability and resistance to deformation under pressure. With its superior physical and electrical characteristics, the laminated transformerboard ensures safe, efficient, and long-term insulation performance for modern transformer applications.