Epoxy fiberglass tubes are high-performance thermosetting insulating materials designed for demanding industrial environments. Manufactured by impregnating alkali-free glass fiber filaments with epoxy resin and undergoing high-temperature winding, these tubes offer a unique combination of electrical insulation and mechanical strength. Compared to standard plastic or metal pipes, epoxy fiberglass tubes provide superior reliability in high-voltage and high-vibration scenarios.
Core Applications in Power Transmission and Distribution
In the field of high-voltage electrical engineering, epoxy fiberglass tubes serve as indispensable components. They are widely used as insulating bushings, support tubes, and operating rods in equipment such as:
- High-voltage switchgear and mutual inductors.
- Circuit breakers and isolating switches.
- Power equipment ranging from 10kV to 35kV+.
Unlike traditional porcelain insulators, these tubes are shatter-resistant and exhibit excellent weather resistance, making them ideal for humid or temperature-fluctuating outdoor substations.
Essential for Motors and Electrical Equipment
Modern motor manufacturing relies on the thermal stability of epoxy fiberglass winding tubes. With long-term temperature resistance reaching 130°C to 155°C, they are used as:
- Coil bobbins and insulating liners inside transformers.
- Lead wire bushings for servo motors and frequency converters.
- Insulating spacers in electric welding machines.
Their high processing precision allows for custom cutting, tapping, and polishing to meet specific assembly requirements.
Advancing New Energy and Rail Transit
As the world shifts toward sustainable technology, epoxy fiberglass tubes are finding new roles in green energy.
- Photovoltaic & Wind Power: Used in junction boxes and wiring protection tubes to withstand UV exposure and corrosion.
- Rail Transit: Acting as harness protection tubes that meet strict flame-retardant and vibration-resistance safety standards.
Why Choose RDS for Your Insulation Needs?
Beyond power and transit, these tubes are excellent for mechanical equipment and anti-corrosion tooling due to their low density and acid-alkali resistance.
RDS has been deeply involved in the fiberglass industry for many years. We operate multiple production lines to provide high-quality epoxy glass winding tubes and laminated tubes. With an abundant range of existing mold sizes, we can meet your specific project requirements quickly and efficiently.
Contact RDS today to find the perfect insulation solution for your business!