Flyaford
Precision-molded standoff busbar insulators certified to UL94 V-0, CE, and IATF 16949 standards.
Global Industrial Benchmark in Thermoset Composite Insulation Technology
Located in the Jinyi New District of Jinhua City, Zhejiang Province, ZHEJIANG FLYAFORD ELECTRON CO., LTD. (Established in 2007) has grown into an international authority in the research, development, and ultra-precision manufacturing of low-to-medium voltage electrical insulators and engineering composite accessories. Spanning a 35,000-square-meter state-of-the-art intelligent manufacturing facility, Flyaford combines material science innovation with Industry 4.0 automation to deliver unyielding dielectric protection for global infrastructure.
Decoding Bulk Molding Compound (BMC), Epoxy Molding Compound (EMC), and Phenolic Resin (PF) Performance Mechanics
Flame retardant insulators are the fundamental line of defense against thermal runaway, short-circuit arcing, and catastrophic equipment failures in high-power distribution systems. At Flyaford, our core engineering advantage lies in the microscopic optimization of thermoset polymer matrix composites.
Unlike standard thermoplastics that soften and melt under thermal stress, our Bulk Molding Compound (BMC) and Epoxy Molding Compound (EMC) formulations undergo irreversible chemical cross-linking during compression molding. This structure ensures zero melt-dripping during intense localized thermal events.
| Parameter Standard | BMC Thermoset Insulators | EMC High-Voltage Insulators | PF Phenolic Insulators |
|---|---|---|---|
| Flame Retardancy Rating | UL94 V-0 (Self-extinguishing <10s) | UL94 V-0 / 5VA Grade | UL94 V-0 Standard |
| Comparative Tracking Index (CTI) | CTI ≥ 600V (Group I) | CTI ≥ 600V (Anti-Tracking) | CTI 175V - 400V |
| Operating Temperature Range | -40°C to +140°C continuous | -50°C to +180°C continuous | -30°C to +150°C continuous |
| Dielectric Strength | ≥ 18-22 kV/mm | ≥ 25-30 kV/mm | ≥ 15-18 kV/mm |
| Flexural Strength | ≥ 120 MPa | ≥ 180 MPa | ≥ 100 MPa |
Flyaford integrates functionalized Aluminium Trihydroxide (ATH) fillers within the thermoset resin. When exposed to extreme temperatures or open flames, ATH undergoes an endothermic decomposition (absorbing ~1.17 kJ/g of heat), releasing water vapor to dilute flammable gases and creating a dense, non-conductive protective char layer. This prevents secondary ignitions and ensures zero toxic halogen gas emissions during fire incidents, complying fully with EU RoHS 2.0 and REACH mandates.
Precision-engineered standoff busbar insulators tailored for multi-industry installation requirements.
Designed for compact low-voltage distribution boards with optimized creepage distance.
CE-certified high-voltage indoor insulation supports engineered for extreme torque resistance.
Standardized low-voltage switchgear insulators for modular cabinet systems.
High dielectric strength cylindrical standoffs for heavy-duty busbar clamping.
Heavy-duty structural standoff busbar supports designed for high short-circuit electrodynamic forces.
Versatile red/brown BMC busbar insulators widely adopted in industrial power networks.
Enhanced tracking-resistant medium-voltage insulators for harsh environmental deployment.
Precision T-slot standoff insulators optimized for EV battery packs and energy storage busbars.
Fully Integrated Thermoset Compression Molding, Insert Hardware Design, and Automated QC Control
At Zhejiang Flyaford Electron Co., Ltd., our manufacturing setup is designed for absolute reliability and high volume output. Operating over 60 automated thermoset compression molding machines within our 35,000 m² plant, we guarantee an uninterrupted supply chain capable of delivering more than 200,000 finished units daily.
Every batch of raw materials and finished insulators undergoes stringent zero-defect quality screening according to IATF 16949 automotive management guidelines. Our in-house research laboratory is equipped with state-of-the-art testing systems:
• Microcomputer Torsion Tester (0-500 N.m)
• Universal Tensile/Flexural Tester (0-200 KN)
• Insert Thread Pull-out Force Rig
• Partial Discharge Chamber (0-120 KV)
• Lightning Impulse Voltage Rig (0-300 KV)
• AC Withstand Voltage Tester (0-100 KV)
• Megohmmeter (0-1 TΩ)
• High-Low Thermal Shock Chamber (-40°C to +140°C)
• Double 85 Damp Heat Chamber (85°C / 85% RH)
• High-Temp Aging Oven (0-300°C)
• Salt Spray Corrosion Chamber
• Vertical & Horizontal Flame Test Chamber
• Ball Pressure Deformation Tester
• Arc Resistance Tester
• RoHS 2.0 XRF Chemical Analyzer
Tailored Insulating Solutions for Critical Power, Automotive, and Industrial Automation Systems
High dielectric, compact BMC/EMC T-type standoff insulators engineered to isolate high-voltage busbars within battery modules, resisting violent vibrations and thermal cycling.
Custom non-flammable insulators engineered for containerized lithium-ion storage banks, preventing arc fault propagation across power conversion systems (PCS).
Heavy-duty SM and SEP series insulators capable of enduring harmonic vibration, continuous ultraviolet radiation, and salt-spray humidity in coastal solar and off-shore wind turbines.
Precision-molded MNS and D series busbar supports built for low/medium voltage distribution cabinets, offering exceptionally low partial discharge and maximum mechanical rigidity.
Solving Procurement Risk via Precision Tooling, Rapid Prototyping, and International Compliance
Global B2B procurement directors face growing challenges regarding supply chain transparency, batch-to-batch consistency, and stringent safety certifications. Flyaford eliminates procurement friction through end-to-end custom engineering Services.
Review of 2D/3D CAD models, finite element analysis (FEA) for mechanical torque, selection of raw material grades (BMC/EMC/PF).
In-house mold design and precision brass/steel insert hardware fabrication ensuring ultra-high thread pull-out strength.
Rapid sample creation, complete lab stress testing (dielectric breakdown, thermal shock, flammability) within 7 business days.
High-efficiency compression molding with automated temperature/pressure data tracking for complete lot traceability.






Next-Generation Materials: Eco-Friendly Thermosets & Smart Insulators for 800V+ EV Architectures
As power densities escalate across electric vehicle battery packs (800V to 1200V architectures) and ultra-large energy storage sites, conventional insulator designs face unprecedented operational pressures. Flyaford's R&D Center is actively pioneering three core technology frontiers:
Developing bio-based epoxy resins and recyclable thermoset compounds that reduce carbon intensity by 40% while maintaining absolute UL94 V-0 flame retardation and high mechanical strength.
Engineered polymer-matrix nanocomposites designed to resist surface electrical treeing under high-frequency pulse-width modulation (PWM) stress in modern silicon carbide (SiC) inverters.
Embedding micro-passive thermal and partial discharge sensors directly within standoff insulators to enable real-time IoT condition monitoring for smart grid substations.
24/7 Technical Response, On-Site Engineering Assistance, and Industry Collaboration
Flyaford provides localized technical support to international buyers, switchgear OEMs, and system integrators. Our dedicated engineering desk delivers:







Engineering Clarifications on Material Selection, Certification, and Insulator Applications
Bulk Molding Compound (BMC) consists of unsaturated polyester resin reinforced with glass fibers, offering an exceptional balance of mechanical strength, arc resistance, and cost-efficiency for general low-to-medium voltage switchgear. Epoxy Molding Compound (EMC) delivers superior dielectric strength (≥25 kV/mm), extremely low moisture absorption, and thermal resistance up to 180°C, making it ideal for high-voltage energy storage and EV applications. Phenolic Resin (PF) provides excellent fire resistance and dimensional stability at budget-friendly price points for standard low-voltage applications.
UL94 V-0 certification ensures that when the insulator material is subjected to an open flame, vertical burning stops within 10 seconds without producing flaming drips. In high-power distribution cabinets and battery energy storage systems (BESS), this fire-extinguishing behavior prevents localized electrical arcs from escalating into thermal runaway fires.
CTI measures the breakdown resistance of an insulating material against electrical tracking under conductive contamination and moisture. Flyaford’s BMC/EMC insulators achieve a CTI ≥ 600V (Material Group I). This high tracking resistance allows equipment designers to shorten creepage distances while maintaining safety, enabling compact enclosure footprints.
Yes. We offer fully integrated OEM/ODM custom insert molding services. Internal brass, steel, or aluminum inserts (such as M6, M8, M10, M12, M16 threads) can be engineered to custom pull-out force and tightening torque specifications according to your engineering drawings.
Every insulator product line undergoes 100% full visual inspection and high-voltage dielectric screening. Our factory utilizes statistical process control (SPC), microcomputer-controlled torsion testing, and automated optical inspection (AOI) to consistently maintain an overall defect rate of less than 100 PPM.
Browse our complete catalog of certified standoff, busbar, and custom composite insulators.