Flyaford
Explore our flagship series of thermosetting composite BMC/DMC standoff insulators, engineered for power distribution systems, high-capacity switchgears, and renewable energy grids demanding zero-defect dielectric performance.
ZHEJIANG FLYAFORD ELECTRON CO., LTD., situated in the Jinyi New District of Jinhua City, Zhejiang Province, stands as a global authority in low-to-medium voltage electrical insulation technology. Founded in 2007, Flyaford has grown into a high-precision manufacturing powerhouse equipped with a 35,000 square meter standardized production facility, housing over 60 high-capacity thermosetting molding machines, 20+ state-of-the-art laboratory testing stations, and a dedicated engineering workforce of over 120 specialists.
Flyaford operates under full compliance with international automotive and electrical safety benchmarks. Our operations are accredited with IATF 16949 (Automotive Quality Management System), UL Certification (US Safety Standard), ISO 9001 (Quality Management System), ISO 14001 (Environmental Management System), and CE EU Safety Compliance. Every batch of Bulk Molding Compound (BMC), Sheet Molding Compound (SMC), and Unsaturated Polyester (UP/PF) resin meets strict RoHS 2.0 and REACH environmental standards.








Recognized as a "National High-Tech Enterprise" and a "Zhejiang Provincial Specialized, Refined, Distinctive, and Innovative SME", Flyaford hosts the Jinhua High-Performance Insulator Science and Technology R&D Center. We maintain long-term industry-university-research partnerships with Tsinghua University and premier technological institutes in Hangzhou and Jinhua, acting as the official designated insulator development partner for high-voltage testing arrays at Tsinghua University.
The global electrification wave—driven by utility-scale renewable energy integration, high-density data centers, electric vehicle (EV) charging super-hubs, and microgrid modernization—has transformed the demands placed on low and medium voltage busbar supports. Traditional epoxy resin and ceramic standoffs are increasingly replaced by engineered Bulk Molding Compounds (BMC) and Unsaturated Polyester Formulations.
Solar PV inverters, wind turbine nacelles, and Battery Energy Storage Systems (BESS) operate under extreme environmental fluctuations, harmonic vibrations, and continuous DC bias voltages. Modern grounding busbar insulators must deliver dynamic electrodynamic resistance under sudden short-circuit surges while preventing tracking currents.
As urban real estate costs escalate, power distribution gear requires ultra-compact physical footprints. This necessitates busbar insulators with high mechanical strength-to-weight ratios, short creepage clearance optimization, and thermal endurance ratings exceeding 140°C under continuous duty.
Global buyers insist on certified conformity. CE marking guarantees that grounding busbar insulators comply with the Low Voltage Directive (LVD) 2014/35/EU, EN 60664-1 insulation coordination, and UL 94-V0 self-extinguishing flame retardancy to prevent thermal runaway fires in industrial controlboards.
The core engineering advantage of Flyaford grounding busbar insulators lies in our proprietary polymer formulation. Bulk Molding Compound (BMC) and Dough Molding Compound (DMC) are composite materials comprising unsaturated polyester resin, chopped glass fiber reinforcement (15% to 30%), mineral fillers (aluminum trihydrate for flame suppression), and specific curing catalysts.
| Engineering Parameter | Flyaford Glass-Reinforced BMC | Traditional Epoxy Resin | Standard Ceramic Insulators |
|---|---|---|---|
| Comparative Tracking Index (CTI) | CTI ≥ 600 V (Group I) | CTI 400 - 500 V | CTI ≥ 600 V |
| Flammability Rating (UL 94) | V-0 Self-Extinguishing | V-1 to HB | Non-flammable |
| Impact Mechanical Toughness | High (>25 kJ/m²) | Moderate (Brittle) | Extremely Low (Fragile) |
| Thermal Shock Tolerance | -40°C to +140°C | -20°C to +100°C | High shock sensitivity |
| Dielectric Strength | > 18 kV/mm | 15-18 kV/mm | 10-15 kV/mm |
| Brass/Steel Insert Torque Limit | Up to 500 N.m | Moderate pull-out risk | Glued insert structural weakness |
Unlike thermoplastic materials that deform under heat stress, thermosetting BMC undergoes irreversible chemical cross-linking during compression molding. This yields exceptional dimensional stability, zero cold-flow under mechanical torque, and resistance to environmental tracking caused by industrial dust and condensation.
Flyaford leverages Zhejiang's world-class industrial cluster to deliver unmatched supply chain agility, cost efficiency, and scale. Our Smart Factory integrates real-time telemetry, automated raw material dosing, dynamic pressure-temperature closed-loop molding, and full automated visual inspection.
Operating over 60 high-tonnage hydraulic molding presses, Flyaford processes raw BMC dough with computer-controlled press cycles. Automated robotic arms handle hardware insert placements, guaranteeing zero thread damage, precise verticality, and minimal residual internal stress in the molded composite insulator body.
From raw chemical batch analysis to final high-voltage spark testing, every single insulator produced in our facility carries digital batch traceability. Operating under an overall defect threshold below 100 PPM (Parts Per Million), we protect international OEMs against costly field failures and line shutdown risks.





Flyaford CE-certified busbar standoff insulators are deployed globally across mission-critical infrastructure where electrical breakdown or mechanical shear leads to catastrophic power interruptions.
Serving as the backbone support for copper and aluminum busbars inside switchboards, metal-clad switchgear cabinets, and main distribution panels. Our insulators maintain phase-to-phase and phase-to-ground isolation under heavy current loads.
Variable Frequency Drives (VFDs) generate steep voltage gradients (dv/dt) and high-frequency harmonics. Flyaford insulators prevent partial discharge erosion and dielectric fatigue caused by rapid pulse-width modulation spikes.
Containerized BESS installations require UL 94-V0 flammability compliance and high mechanical creepage protection to withstand chemical vapor exposure, tight spatial packing, and continuous DC ground fault monitoring.
Flyaford manufactures a complete range of standoff busbar insulator geometries designed for standard DIN rail mounting, direct chassis bolting, and customized busbar offset dimensions.
Low-profile trapezoidal standoff design for compact low-voltage distribution and control cabinets.
Hexagonal geometry with extended ribs for maximum creepage distance in damp environments.
Designed specifically for ABB-MNS style modular low-voltage switchgear busbar frames.
Cylindrical pillar supports with double-female brass inserts for heavy mechanical load paths.
Heavy-duty high-torque busbar clamps for medium-voltage transformer connection boxes.
Standardized drum-type insulators widely adopted in industrial motor control centers (MCC).
Reinforced polymer pillars engineered for dynamic short-circuit electromagnetic shock resistance.
T-slot compatible insulation blocks for fast modular grid rail assembly and EV battery packs.
To guarantee absolute electrical safety and structural integrity under severe overload conditions, Flyaford operates a high-standard testing laboratory equipped with precision scientific instruments:
Equipped with a Double 85 Test Chamber (85°C temp / 85% RH endurance), Thermal Shock Chamber (-40°C to +140°C rapid cycling), High-Temperature Ovens (up to 300°C), Arc Resistance Testers, Salt Spray Chambers, and ROHS Spectrometers.
With over 20 years of specialized manufacturing experience, Flyaford provides end-to-end custom engineering for international switchgear OEMs, utility contractors, and industrial component exporters.
Our electrical engineering team provides technical 3D CAD drawing verification, mold flow simulation, custom insert material selection (brass, copper, stainless steel), and rapid 3D sample prototyping prior to volume tooling.
We offer 24/7 online technical support, issue troubleshooting within 2 hours, site assistance, and standard quality replacement guarantees to ensure seamless customer operation.












Expert guidance regarding CE certification standards, polymer material selection, and grounding insulator installation dynamics.
Explore additional high-performance low and medium voltage insulator solutions from our comprehensive product export catalog.