Calendered Pressboards
Calendered pressboards are essential solid insulation materials used in transformer and electrical equipment manufacturing. Their high density, mechanical strength, and dielectric performance make them ideal for structural insulation applications. ACC Insulations is a trusted manufacturer of calendered pressboards for power and industrial applications.
What Are Calendered Pressboards?
Calendered pressboards are manufactured by compressing layers of cellulose pulp under high pressure and temperature. The calendering process improves surface finish, density, and insulation performance.
| Key Specifications | |
|---|---|
| Material | 100% Sulfate Pulp |
| Color | Natural |
| Thickness | 1 mm to 6 mm |
| Density | 1.05 |
| Insulation class | A (105 °C) according to VDE 0530 Part 1 |
| Size | 1070 x 1850 |
Key Characteristics
- High mechanical strength
- Excellent dielectric properties
- Smooth surface finish
- Oil compatibility
- Dimensional stability
Application
Calendered pressboards are used in:
- Transformer spacers
- Electrical barriers
- End rings
- Structural insulation components
Importance in Transformer Design
Pressboards provide:
- Mechanical support for windings
- Electrical isolation between components
- Resistance to short-circuit forces
Manufacturing Expertise at ACC Insulations
ACC Insulations ensures:
- Precision calendering
- Uniform density
- Strict quality control
- Compliance with international standards
Quality Standards
- IEC specifications
- IS standards
- Transformer OEM requirements
Advantages of ACC Insulations Pressboards
- High dimensional accuracy
- Long service life
- Custom machining support
- Reliable supply chain
Industries Served
- Power transformer manufacturers
- Distribution transformer manufacturers
- Electrical equipment manufacturers
Why Choose ACC Insulations
ACC Insulations is a leading manufacturer of calendered pressboards, offering high-quality products for transformers and other electrical applications. Our pressboards are made from high-quality materials and are designed to provide mechanical stability and long-term electrical performance.
Engineering Tools Suite
Calculate thickness requirements, dielectric safety margins, and matched standards for your calendered pressboard applications using our interactive tools.
Frequently Asked Questions
Yes, calendered pressboards are suitable for oil-filled transformers. They are made from high-quality materials and are designed to provide mechanical stability and long-term electrical performance.
Yes, calendered pressboards can be machined to achieve precise dimensions and shapes. This makes them ideal for use in a variety of applications.
Yes, custom dimensions are available.
