Insulation Pressboard
Your Professional Insulation Pressboard Supplier
Hangzhou Weshare Import & Export Co.,Ltd. is a leading Chinese manufacturer and exporter of transformer components, electrical insulation materials and consulting company. Weshare founded in 2005 by one specialized sales in transformer accessories. Most of our products are used in oil and dry transformers, electrical motors, generators and electronic products.Our mission is to ensure appropriate product quality while satisfying the needs of our customers is our prime objective and represents the core principle of our business activities.
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Thermally Upgraded Insulation PressboardThermally upgraded insulation pressboard for oil-immersed transformers — N 1.78%, ash 0.47%, 43.69 kV/mm in oil. 1.0mm, low shrinkage, OEM supply.read more -
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Compressed PressboardA hard insulating board formed by laminating wood fibers under high temperature and high pressure, used for winding insulation, slot wedge fixing and structural support of transformers, motors and...read more -
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Electrical Insulation PressboardThickness:5.5mmread more
Electrical Insulation Pressboard is a special product based on the purest cellulose, extracted from long-fibered coniferous trees. electrical insulation pressboard produced by... -
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Why Choose Us
Quality Assurance
Certified by UL, SGS, and ISO9001, Weshare upholds stringent quality standards.
Extensive Experience
Weshare, since 2005, excels in transformer accessories and electrical engineering.
Export markets
With a strong focus on export markets, we have successfully captured significant market share in East Asia, North Europe, the Middle East, South America, Egypt, and East Africa. Our dedication to ensuring appropriate product quality while meeting customer needs is the cornerstone of our business philosophy.
Product Application
Our company boasts a wide array of products used in oil and dry transformers, electrical motors, generators, and electronic devices.
Advantages of Insulation Pressboard
Excellent Electrical Insulation
Insulation Pressboard offers high dielectric strength, preventing electrical breakdowns and ensuring the safe operation of motors and transformers.
Thermal Stability
Capable of withstanding high temperatures, Insulation Pressboard maintains its insulating properties even under thermal stress, making it suitable for applications that generate significant heat.
Mechanical Strength
This material is known for its durability and mechanical integrity, providing reliable insulation and support under mechanical stress and vibration.
Moisture Resistance
High-quality Insulation Pressboard is treated to resist moisture absorption, which is crucial for maintaining its insulating properties in humid environments.
Types of Insulation Pressboard
Standard Insulation Pressboard
Made from high-purity kraft cellulose fibers. Used for general insulation: barriers, layers, and separators.
Pre-Compressed Pressboard (PBP)
Manufactured under high pressure and temperature. Densified for increased strength and dimensional stability.
Formable Pressboard (Moldable Grade)
Specially designed to allow forming and bending. Requires moistening and thermal pre-conditioning.
Product Paramenters
Insulation Pressboard Grades
Standard Pressboard
Flexible, economical, and meets IEC standards. Used for duct strips, barriers, and layer wraps.
Pre-Compressed Board
Rigid, high dielectric, and dense. Used for support blocks and axial spacers.
Formable Pressboard
Bendable, moldable, and allows 3D shaping. Used for shields, structural corners, and profiles.
Application Areas of Insulation Pressboard
Transformer Applications
Interlayer Insulation: Used between transformer windings to prevent inter-turn short circuits and ensure reliable insulation.
Barriers and Spacers: Support winding structures and maintain coil positioning while preserving insulation integrity.
Lead Insulation: Wrapped around conductors to prevent leakage or breakdown, ensuring safe operation of leads.
Oil Channel Separation: In oil-immersed transformers, pressboard separates oil ducts to enhance cooling and insulation.
Motors and Generators
Slot Insulation: Inserted into stator or rotor slots to isolate windings from the core and prevent short circuits.
Phase-to-Phase Insulation: Separates windings of different phases to avoid phase-to-phase faults.
End Support: Provides structural support at winding ends to resist electromagnetic vibration and maintain stability.
Commutator Liners: Used in DC motors to insulate and support commutator segments, ensuring safe commutation.
High and Low Voltage Switchgear
Breaker Barriers: Prevent inter-phase discharge by isolating arcs, enhancing operational safety of breakers.
Insulating Pads: Support conductive components and prevent direct contact between metal parts.
Cabinet Insulation: Installed on switchgear walls to increase overall insulation rating and reduce fault risk.
Production Process of Insulation Pressboard
Preparation of pulp
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Wet Molding
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Drying And Curing
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Gluing
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Cutting
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Finisher Products
6
FAQ
As one of the leading insulation pressboard suppliers in China, we warmly welcome you to wholesale high-grade insulation pressboard made in China here from our factory. All our products are with high quality and competitive price.