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Quick Details

  • Place of Origin: Shandong, China (Mainland)
  • Brand Name: Huisheng
  • Model Number: H4, H41
  • Type: Insulation Sheet
  • Material: paper
  • Application: High Voltage
  • Rated Voltage: 110KV-1000KV
  • Tensile Strength: 75~110Mpa
  • Density: High
  • Mechanical and electrical strength: High
  • Compression coefficient: Low

Packaging & Delivery

Packaging Details pallet package
Delivery Time 10 days

We produce high quality insulation sheet (transformer board, pre-compressed pressboard), which is mainly applied to produce oil-immersed transformer as electrical insulation components (or electric components).



  • Item No: H4, H41
  • Thickness (mm): 1.0  1.5  2.0  2.5  3.0  4.0  5.0  6.0  7.0  8.0
  • Standard size (mm): 4400x2200 (Customer size is available)
  • Rated voltage: 110KV-1000KV
  • Package: pallet


As insulation material, it is widely used in transformer, reactor,capacitor, mutual inductor, etc.


Our Unique Advantages:


High purity raw material:

Canada 100% unbleached sulfate wood pulp


Most Advanced technology in China:

  • Expert: we hired authoritative Japanese expert of 36 years of insulation pressboard production experience. And also we engaged famous expert in China
  • Machine: hot-press machine, stainless steel production line, on-line metallics detector are most advanced in China
  • Water treatment: IEC standard, electrical conductivity<15µs/cm

Strict quality control:

  • Thickness can be accurately control (1.6mm board less than ±5%)
  • Best index in China: High density / mechanical strength / electrical strength
    Low compression coefficient
  • We use the same detecting instrument with National quality certification authority, and we test every batch.

Reasonable Price:

(Welcome to quote!)


First-rate service:

We will handle your complaint within 24 hours and make a satisfactory solution.

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China (Mainland) | Manufacturer, Trading Company
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