Flyaford
Explore our precision-molded BMC/DMC standoff insulators engineered for severe dielectric and mechanical stress.
In an era defined by rapid electrification, high-power battery energy storage systems (BESS), renewable energy integration, and smart switchgear automation, the reliability of electrical insulation infrastructure is non-negotiable. Modern power systems demand standoff insulators that can endure intense mechanical vibration, extreme thermal fluctuations (-40°C to +140°C), aggressive chemical corrosion, and high short-circuit electrodynamic forces without dielectric degradation.
As a specialized OEM High Performance Insulators Supplier, Zhejiang Flyaford Electron Co., Ltd. engineered a comprehensive portfolio of Bulk Molding Compound (BMC) and Sheet Molding Compound (DMC) composite standoff insulators. Transitioning away from traditional brittle porcelain and moisture-susceptible phenolic resins, thermosetting composite materials reinforced with chopped glass fiber represent the pinnacle of electrical isolation engineering.
Established in 2007 and headquartered in the Jinyi New District of Jinhua City, Zhejiang Province, ZHEJIANG FLYAFORD ELECTRON CO., LTD. operates a modern 35,000-square-meter manufacturing facility. Recognized as a "National High-Tech Enterprise" and a "Zhejiang Provincial Specialized, Refined, Distinctive, and Innovative SME," Flyaford serves as a cornerstone manufacturer of low-to-medium voltage electrical insulation components globally.
Our automated smart factory houses over 60 hydraulic compression molding machines, integrated robotic deburring units, and state-of-the-art laboratory testing infrastructure. Operating under strict IATF 16949 automotive-grade quality standards, we achieve an industrial-leading daily production volume exceeding 200,000 pieces with a verified defect rate below 100 PPM.
To guarantee absolute structural integrity and electrical endurance, Flyaford maintains an in-house laboratory equipped with comprehensive diagnostic machinery:
Choosing the optimal thermosetting compound is critical for electrical safety and mechanical stability under short-circuit stress. Bulk Molding Compound (BMC) and Dough Molding Compound (DMC) combine unsaturated polyester resin with unsaturated cross-linking monomers, inorganic fillers (aluminum trihydrate - ATH for flame retardancy), and chopped glass fibers (15% to 30% concentration).
| Technical Parameter / Property | BMC (Bulk Molding Compound) | DMC (Dough Molding Compound) | EMC (Epoxy Molding Compound) | PF (Phenolic Resin Material) |
|---|---|---|---|---|
| Dielectric Strength (kV/mm) | 18 - 25 kV/mm | 16 - 22 kV/mm | 20 - 28 kV/mm | 10 - 15 kV/mm |
| Comparative Tracking Index (CTI) | CTI 600V (Class 0) | CTI 600V (Class 0) | CTI 600V (Class 0) | CTI 175V - 275V |
| Tensile Strength (MPa) | 40 - 65 MPa | 35 - 55 MPa | 60 - 90 MPa | 25 - 40 MPa |
| Flexural Strength (MPa) | 90 - 140 MPa | 80 - 120 MPa | 110 - 160 MPa | 60 - 90 MPa |
| Flammability Rating (UL 94) | UL 94-V0 (Self-Extinguishing) | UL 94-V0 (Self-Extinguishing) | UL 94-V0 (Self-Extinguishing) | UL 94-HB to V1 |
| Thermal Working Limit (°C) | -40°C to +140°C | -40°C to +130°C | -50°C to +180°C | -20°C to +105°C |
| Moisture Absorption Rate | < 0.15% | < 0.20% | < 0.08% | > 0.50% |
Flyaford produces an extensive catalog of standoff insulators engineered for specific mechanical geometry, threaded insert requirements (M6 to M16 brass/steel inserts), and voltage ranges from 400V AC up to 12kV MV switchgear applications.
With 20 years of OEM/ODM manufacturing expertise, Flyaford provides end-to-end custom engineering services. From initial FEA (Finite Element Analysis) stress modeling to mold design, copper/brass insert anchorage engineering, and final full-spectrum electrical testing, we deliver tailored solutions for multinational OEMs.
3D mold modeling, thermal expansion matching between metal insert and resin matrix, stress concentration analysis.
In-house high-precision CNC tooling fabrication, hardened mold steel selection ensuring >500,000 compression cycles.
Automated insert positioning, precise BMC dose charge loading, high-pressure thermocuring under strict temperature control.
Automated vision inspection for micro-cracks, torque testing up to specified N.m limit, flash clearance, and dielectric testing.
Leveraging China's world-class electrical industrial cluster in Zhejiang with international quality compliance.
Direct partnerships with global glass-fiber and resin suppliers ensure raw material batch consistency, low volumetric costs, and stable supply chain resistance against global raw material price volatility.
Designated insulator supplier for Tsinghua University. Joint university-industry laboratory initiatives drive breakthrough research in polymer thermal conductivity and arc flash resistance.
Fully certified across IATF 16949, ISO 9001, ISO 14001, UL certification, CE EU safety standards, and strict adherence to RoHS 2.0 and REACH environmental directives.






Engineered to excel in demanding global industrial applications across green energy, industrial automation, and transport.
High-density lithium battery enclosures require ultra-compact busbar support insulators with high dielectric insulation strength up to DC 1500V. Flyaford D-Series and SM-Series provide maximum flame resistance (UL 94-V0) to prevent thermal runaway propagation.
Offshore nacelles and tower switchgears experience constant vibrational fatigue and high-humidity salt mist corrosion. Our double-85 humidity tested BMC insulators maintain structural stability under continuous flexural stress.
Built to meet IATF 16949 automotive standards, our customized insulators secure high-voltage busbars, DC fast-charging power modules, and onboard traction inverters subject to rapid temperature cycling.
Essential for power grid distribution cabinets, MNS low-voltage switchgears, and power control centers requiring high mechanical insert torque resistance (up to 500 N.m) during dynamic short-circuit electromagnetic surges.
Variable frequency drives (VFD) generate high-frequency harmonic stresses and thermal dissipation loads. BMC material provides low dielectric loss and continuous heat displacement up to 140°C.
Utility-scale solar central inverters demand UV-resistant, non-tracking insulation components designed to operate continuously under high ambient desert and outdoor solar conditions.
Our production processes adhere strictly to global regulatory frameworks, ensuring seamless market access in North America, Europe, and Asia-Pacific.
In-depth answers to critical technical and procurement questions from power system design engineers.
Select a model below to access detailed mechanical dimensions, creepage distances, and custom engineering datasheets.