Transformer Pressboard For Platfrom Rings

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Product Details

High Density Transformer Insulation Pressboards

HECHIN/HAOTAI offers a broad variety of transformer boards. The cellulose based pressboard is available in various densities and thicknesses - ranging from 1.0mm - 60mm, all meeting international standards. Transformer board ensures long-term dimensional stability.


Shrinkage(Thickness direction)%≤4.0
Ash content%≤0.8
Oil absorption rate%≥9
Electric conductivity water extractMs/m≤8.0
Voltage resistant strength (In oil)Kv/mm≥6
Moisture content%≤4.0
Bending StrengthN/mm²≥100(VD)≥80(LSD)
Compression Strength


1. Insulation class A (105 °C) according to VDE 0530 part 1
2. Natural-coloured
3. Hot-pressed Pressboard, 100 % sulphate pulp
4. High hardness and stiffness
5. Low shrinkage and compatibility
6. High purity and mechanical strength
7. Good compatibility with liquid dielectrics

Typical application of laminated pressboards are press rings, static rings, beams, clamping plates, support strips

Welcome to contact Haotai, which is one of best transformer pressboard for platfrom rings manufacturers and suppliers in China, you can also get transformer pressboard for platfrom rings free sample from our factory.