Phenolic Cotton Tube | Machinable Electrical Insulation Tube for Transformers & Motors

Phenolic Cotton Tube is a high-performance laminated insulation tube made from cotton fabric impregnated with phenolic resin. It is widely used in transformer, motor, and electrical insulation systems requiring both mechanical strength and dielectric stability.

 Key Features

• Excellent machinability (CNC turning, drilling, milling)
• High mechanical strength and impact resistance
• Stable electrical insulation performance
• Low water absorption and dimensional stability
• Suitable for oil-immersed transformer environments

Applications

• Oil-immersed power transformers
• Dry-type transformers
• Motor winding insulation systems
• High-voltage switchgear equipment
• Insulating spacers and structural parts
• 

Technical Data

Why Choose Our Phenolic Cotton Tube

Our phenolic cotton tube are designed for OEM transformer manufacturers requiring reliable insulation materials with stable machining performance and long service life. They ensure safe operation under electrical, thermal, and mechanical stress conditions.

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      • OEM customization

   • CNC machining

   • Technical datasheets

    • Fast gloal delivery

 Contact us for technical datasheets and pricing.