As global demand for renewable energy accelerates, wind power remains a cornerstone of sustainable infrastructure. Behind each high-performance wind turbine blade lies a sophisticated manufacturing process—and Pelican Wire plays a critical role in that process through the engineering of durable, high-resistance wire designed for composite mold heating.
One of our custom solutions tailored for this application features:
- Conductor: 7-Strand, Alloy 90 (0.021″ diameter)
- Nominal Resistance: 0.270 Ohms/ft
- Insulation: 0.021″ Black ETFE (Ethylene Tetrafluoroethylene)
- Nominal Finished Diameter: 0.063″
- Certifications: UL Style 1644 | 150°C | 600V Rating
Application: Internal Heating of Composite Molds
In wind turbine blade production, precision temperature control during the curing process of resin-based composites is critical to achieving the structural strength and aerodynamic performance required for decades of operation. Rather than curing blades in large external ovens, many manufacturers embed resistance wires directly into the clam shell molds used to form the blades.
When energized, these resistance wires convert electrical energy into heat, uniformly warming the mold surface to promote consistent resin curing throughout the blade structure. This method provides multiple advantages:
- Enhanced process control and repeatability
- Energy efficiency compared to external ovens
- Reduced production cycle time
- Improved composite bonding and structural integrity
Why Pelican Wire?
Pelican Wire is a long-standing supplier of heating wire solutions used in composite mold tooling for major wind energy OEMs and subcontractors. Our resistance wire solutions are engineered for:
- Long-term thermal stability in high-cycle molding environments
- Chemical and abrasion resistance through robust fluoropolymer insulation
- UL-certified safety and compliance in industrial manufacturing systems
- Customization of strand count, resistance, and insulation materials to match specific mold designs and voltage requirements
We don’t just provide wire—we collaborate on optimized solutions that enable efficient, repeatable blade production in the wind energy sector.
American Made / Employee-Owned
Ready to explore a custom resistance wire solution for your molding or curing system?