Wenzhou Shuowei Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of aramid insulation paper for transformer magnetic cables in China, also supports customized service. Welcome to wholesale bulk advanced aramid insulation paper for transformer magnetic cables in stock here from our factory. If you have any enquiry about quotation, please feel free to email us.
Products Description
Aramid paper, also known as polyaramid fiber paper, is a high-performance specialty paper-based material made from aramid staple fibers and aramid fibrid fibers via processes such as inclined wire wet-laying and hot-pressing.
Material: Made of aramid fibersPerformance: High dielectric strength (excellent insulation), mechanical toughness (wear-resistant & durable), flexibility (easy to process), elasticity (resilient), and high heat resistance rating.
Products Main Applications
Large transformers / Motors: Wrapping of magnetic cables
Generators: Insulating components
Electrical systems: Laminated structures
High-demand scenarios: Heat-resistant & insulation cable paper (calendered paper)
Products Description
| Parameter Category | Technical Index | Unit | Notes |
|---|---|---|---|
| Basic Dimensions | Thickness range | mm | 0.05 - 0.76 |
| Width range | mm | 5 - 1000 (customizable for large transformers) | |
| Electrical Performance | Dielectric strength | kV/mm | ≥ 20 (stable at high temperature) |
| Volume resistivity | Ω·cm | ≥ 10¹⁴ (50Hz, 25℃) | |
| Thermal Performance | Continuous operating temperature | ℃ | ≥ 200 |
| Thermal decomposition temperature | ℃ | ≥ 370 (no melting or dripping) | |
| Mechanical Performance | Tensile strength | MPa | ≥ 15 (longitudinal direction) |
| Flexibility | - | Can be bent 180° repeatedly without cracking | |
| Elasticity | - | Resilient after slight deformation | |
| Material Composition | Raw material | - | Aramid staple fibers + aramid fibrid fibers |
| Process Feature | Forming process | - | Inclined wire wet-laying + hot-pressing |
| Application Scenarios | Core use | - | Transformer magnetic cable wrapping; transformer winding interlayer insulation |
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