Flyaford
In modern electrical architecture, power reliability hinges on high-integrity dielectric isolation. ZHEJIANG FLYAFORD ELECTRON CO., LTD. (established in 2007 in Jinyi New District, Jinhua City, Zhejiang Province) stands at the global forefront of high-performance insulator design and manufacturing. Operating a state-of-the-art 35,000 square meter standard manufacturing complex, Flyaford delivers critical isolation components engineered to withstand severe electrical, mechanical, and thermal stress.
Our specialized EL Series Insulators represent a pinnacle in Bulk Molding Compound (BMC) and Sheet Molding Compound (DMC) matrix engineering. Tailored for switchgears, battery energy storage systems (BESS), frequency cabinets, EV charging hubs, and renewable generation grids, these insulators prevent dielectric breakdown, eliminate flashovers, and optimize busbar support stability under maximum electrodynamic fault currents.
National High-Tech Enterprise & Zhejiang Provincial Specialized SME
The EL Series utilizes unsaturated polyester reinforced with glass fibers and mineral fillers. Thermosetting composite materials undergo irreversible chemical cross-linking during compression molding, resulting in zero thermal softening, exceptional dimensional stability, and high comparative tracking index (CTI ≥ 600V).
Incorporating custom threaded inserts (M6 to M16) crafted from high-grade brass or anti-corrosion plated steel. Knurled external insert geometry locks seamlessly into the composite core, providing exceptional torsional strength (tested up to 500 N·m) and tensile pull-out resistance.
Designed with optimized shed geometry to maximize creepage distance and clearance path. Void-free dense compression eliminates micro-air pockets within the matrix, suppressing internal partial discharge (< 5 pC at rated voltage) and eliminating insulation degradation over decades.
| Parameter / Specification | EL Series BMC/DMC Insulator Value | International Standard Compliance |
|---|---|---|
| Dielectric Strength | ≥ 20 kV/mm | IEC 60243-1 / ASTM D149 |
| Comparative Tracking Index (CTI) | CTI 600 (Group I) | IEC 60112 / UL 746A |
| Flame Retardancy Rating | UL94 V-0 (Self-Extinguishing, Zero Halogen) | UL 94 Standard for Safety |
| Operating Temperature Range | -40°C to +140°C (Transient stability to 300°C) | IEC 60085 Thermal Class H |
| Mechanical Flexural Strength | ≥ 120 MPa | ISO 178 / ASTM D790 |
| Tensile Strength & Torque Limit | Tensile ≥ 15 kN | Torsion up to 500 N·m | GB/T 8287 / IEC 60660 |
With the accelerated global transition toward solar power, wind turbines, and utility-scale energy storage systems, electrical isolation demand has shifted from standard AC utility lines to high-density DC distribution. DC busbars generate continuous unidirectional electrical stress that accelerates ionic migration in low-grade insulators. Global EPC firms now mandate CTI 600 rated BMC EL Series insulators to prevent tracking failure in high-humidity ambient environments.
High-power charging infrastructure (800V DC megawatt chargers) demands compact, vibration-resistant standoff insulators. Modern EV charging kiosks require small-footprint EL series insulators capable of supporting massive copper busbars while enduring automotive-grade thermal cycling and mechanical shock in harsh outdoor conditions.
Global original equipment manufacturers (OEMs) require suppliers capable of scaling rapidly while guaranteeing full component traceability. Flyaford's automated smart factory uses real-time digital parameter monitoring to maintain a defect rate strictly below 100 PPM across daily outputs exceeding 200,000 pieces.
Lead-free, non-toxic, and non-halogenated insulating components have become mandatory across Europe, North America, and East Asia. Flyaford EL Series insulators undergo comprehensive ROHS 2.0 and REACH testing to ensure zero environmental impact throughout product lifecycles.
Provides high mechanical rigidity and dielectric isolation for internal busbar support within power distribution cabinets, gas-insulated switchgears (GIS), and ring main units (RMU).
Engineered to dissipate thermal accumulation caused by high-frequency harmonic vibrations while isolating power electronic modules in industrial VFD enclosures.
Prevents electrical fault propagation across high-density lithium battery racks and power conversion system (PCS) units, ensuring maximum flame safety.
Resists severe mechanical shock, continuous cyclic oscillation, and harsh environmental humidity inside offshore and onshore wind turbine generators.
IATF 16949-certified automotive insulator solutions for onboard power distribution units (PDU), traction inverters, and high-speed rail power lines.
Weatherproof UV-stabilized standoff insulators for solar combiner boxes, central inverters, and grid-interconnection substations.
Innovation powers Flyaford. Recognized as the official Jinhua Feifav High-Performance Insulator Science and Technology R&D Center, our organization maintains deep technical partnerships with leading academic research bodies, including ongoing joint projects with Tsinghua University. We serve as Tsinghua University's designated insulator supplier, supplying cutting-edge insulation parts for advanced power electronics development.
Our in-house, high-standard testing laboratory houses an extensive array of advanced diagnostic equipment, including:
Flyaford holds comprehensive international quality management and safety accreditations, giving global buyers full confidence in seamless cross-border integration. Our engineering team provides end-to-end technical support, from initial CAD/3D modeling and custom insert tooling to on-site installation troubleshooting.






Integrating bio-based polyols and recycled glass fiber reinforcements into BMC formulations to reduce carbon footprints by up to 35% without compromising mechanical flexural strength or flame retardancy.
Embedding micro-fiber optic partial discharge sensors and surface tracking monitoring nodes directly inside the EL series insulator body during compression molding for real-time grid diagnostics.
Expanding digital twin factory automation to 100+ molding cells, achieving zero human-touch quality control, continuous closed-loop parameter adaptation, and sub-50 PPM quality standards.






