Description
Aramid Paper for winding is a high-performance insulating material made from aramid fiber through a wet molding process. It features high temperature resistance, high mechanical strength, and excellent electrical properties. It is widely used in transformers, motors, aerospace, and other fields.
Core Functions:
Electrical Insulation: Dielectric strength ≥ 20 kV/mm (IEC 60243 standard).
High Temperature Resistance: Long-term tolerance of 220°C, with no decomposition at 240°C for short periods (ASTM D2307 test).
Thickness:0.13mm-0.50mm
width:Custom
Mechanical Protection: Tensile strength ≥ 100 MPa (longitudinal), with excellent tear resistance.
| Performance Indicators | Data | Testing Standards | Comparison with Competitors |
|---|---|---|---|
| Dielectric Strength | ≥20 kV/mm | IEC 60243 Standard | Competitors generally ≤15 kV/mm |
| Longitudinal Tensile Strength | ≥100 MPa | ISO 1924 Certification | Competitors ≤80 MPa |
| Temperature Resistance | Long - term: 220°C, Short - term: 240°C | ASTM D2307 | Competitors' long - term temperature ≤180°C |
| Flammability Rating | UL94 V - 0 | UL 94 Standard | Most competitors pass V - 1/V - 2 |
| Thickness Uniformity | Error ≤ ±0.02 mm | ISO 534 Certification | Competitors ±0.05 mm |
Additional information:
Minimum order quantity: 100Kg
Packaging: wooden box + pallet
Logistics: sea freight, air freight
Sample: Support free delivery
Aramid Paper for winding has the same product performance as Nomex paper, but has more advantages in price.
Please contact our sales to obtain
1.UL certification: ensuring product safety and high performance
2.RoHS certification: complies with environmental protection standards and does not contain harmful substances
3.REACH certification: ensuring material safety meets EU requirements
Application
- Dry-Type Transformers
Used as conductor insulation, layer insulation, and barrier insulation in transformer windings.
- Electric Motors
Applied in slot liners, phase insulation, slot wedges, and end-turn insulation systems.
- Generators
Used where long-term thermal stability and dielectric performance are required.
- Railway and Traction Equipment
Suitable for insulation systems operating under continuous thermal and mechanical stress.
- High-Temperature Electrical Equipment
Commonly used in reactors, converters, and industrial power systems.
Available Grades of aramid paper
Calendered Aramid Paper
Dense structure with higher dielectric strength and smoother surface. Commonly used where electrical performance is the primary requirement.
Uncalendered Aramid Paper
More porous structure with improved resin absorption characteristics. Often used in motors, generators, and resin-rich insulation systems.
Laminated Aramid Composites
Aramid paper can also be combined with polyester film or polyimide film to produce composite insulation materials such as AMA, AHA, and NHN.
Product display
certificate
customer
FAQ
Q1: What thermal class does this aramid paper meet?
A:
Hangzhou Weshare aramid paper meets Class H (180°C) thermal classification for continuous operation.
It maintains stable electrical and mechanical properties even under prolonged high-temperature conditions.
Q2: Can it replace Nomex® aramid paper?
A:
Yes. Our aramid paper offers comparable thermal, electrical, and mechanical performance and can be used as an alternative solution for winding insulation applications.
Samples and technical data can be provided for customer validation and testing.
Q5: What thickness and sizes are available?
A:
Standard thickness ranges from 0.13 mm to 0.50 mm.
We also offer custom thickness, width, roll length, and sheet sizes based on your winding process and equipment requirements.
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