Engineered BOPET Films for High-Voltage
Insulation & Motors
Empowering the EV and power grid industries with UL-recognized insulation films. Featuring exceptional dielectric strength and ultra-thick manufacturing capabilities up to 600μm.
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  • Up to 600μmUp to 600μmUp to 600μm

    Ultra-Thick Capability

  • Dielectric StrengthDielectric StrengthDielectric Strength

    High Breakdown Voltage

  • Thermal EnduranceThermal EnduranceThermal Endurance

    High RTI Ratings

  • UL CertifiedUL CertifiedUL Certified

    Global Safety Standards

Traction Motor & Transformer Series
High-thickness insulating solutions engineered for heavy-duty power infrastructure and EV powertrains.
Motor Slot Insulation
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Exceptional mechanical strength and high thermal endurance for reliable motor windings.
Thickness
188-350μm
Models: CY30YS, CY30G
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Dry-Type Transformer Film
Reflector Icon
Ultra-thick film series offering superior dielectric isolation for power infrastructure.
Thickness
Up to 600μm
Models: 6023D, 6023D-1
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Ultra-thick Colored Insulating Film
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The ultimate monolithic alternative to traditional multi-layer laminated materials.
Thickness
188-600μm
Models: CY22 Series (B/T/G/H)
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Heat-Resistant & General Insulation Series
Versatile insulation substrates optimized for reliable thermal stability and seamless processing.
Heat-Resistant Film
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Maintains ultra-low thermal shrinkage under continuous high-temperature environments.
Thickness
125-250μm
Models: CY30YS, CY30G
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General Insulation Film
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Optimized balance of mechanical durability and dielectric properties for universal usage.
Thickness
50-350μm
Models: 6023D, 6021, 6027D, 6020
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Colored Insulation (Optional)
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Specially pigmented for precise phase identification and reliable light-blocking insulation.
Thickness
Custom
Models: CY11, CY28 (White/Black)
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Where Yuxing Empowers EV Traction Motors
Monolithic Dielectric Integrity for Next-Generation Motor Stators.
Slot Liner
Phase Insulation
Wedge Insulation
S
Slot Liner
The primary dielectric barrier protecting windings from the stator core. This layer demands extreme mechanical toughness to survive automated high-speed coil insertion, paired with superior dielectric strength to securely suppress partial discharge in high-voltage 800V EV powertrains.
P
Phase Insulation
Critical isolation keeping different phase coils safely separated. Operating under continuous thermal loads, our films feature exceptional RTI ratings and ultra-low thermal shrinkage, preventing voltage breakdown between adjacent coils and ensuring long-term motor lifespan.
W
Wedge Insulation
The mechanical retention shielding the slot opening from centrifugal forces. This layer provides robust structural support and chemical resistance against automatic slot-locking pressures, anchoring the wire coils tightly inside the slot under high-speed motor rotation.
Engineered for High-Power Applications
EV Traction Motors
EV Traction Motors
Preventing partial discharge in 800V high-voltage platforms.
Dry-Type Transformers
Dry-Type Transformers
Replacing laminates with single-layer 600μm thick PET for better heat dissipation.
Wire & Cable Wrapping
Wire & Cable Wrapping
Flexible and high-tensile strength for reliable cable wrapping.
The 600μm Advantage: Eliminating Delamination
Traditional thick insulation uses adhesives to laminate multiple thin films, introducing risks of delamination and thermal failure. Yuxing's single-layer 600μm co-extrusion technology provides monolithic dielectric integrity, dramatically extending motor lifespan.
Eliminating Delamination
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Insulation Manufacturing Excellence

  • Specialized Thick-Film Lines

  • Precision Slitting (Down to tape width)

  • 250,000 Tons Annual Capacity

Compliance & Safety Certifications
Compliance & Safety Certifications
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UL Recognized (Yellow Cards Available)
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RoHS & REACH Compliant
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Halogen-Free (IEC 61249-2-21)
Compliance & Safety Certifications
From Sample to Scale: How We Partner
Request Insulation Samples & TDS
Contact our engineering team today to receive a technical data sheet (TDS) or request a free sample roll tailored to your precise electrical insulation and voltage requirements.
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Frequently Asked Questions

  • Q: What is your maximum thickness?
    A: We can manufacture monolithic (single-layer) PET films up to 600μm.
  • Q: Are your insulation films UL certified?
    A: Yes, many of our core electrical grades hold UL Yellow Cards.
  • Q: Can you slit to narrow tape widths for wire wrapping?
    A: Yes, our precision slitting handles custom widths for direct manufacturing use.