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Blades

Wind turbine blades are the airfoil-shaped wings that convert wind energy into rotational mechanical energy. Modern blades are made from advanced composite laminates (glass/carbon fiber in epoxy or polyester resin) designed for high strength and low weight. Typical turbine blades range from ~30 m to over 100 m in length. All blade models incorporate standard features such as an integrated gelcoat surface for UV durability, pre-bend curvature to manage load deflection, and embedded lightning protection conductors. The blade root has a reinforced attachment structure (“SuperRoot” or similar) for secure hub mounting. These features combine to give blades high performance and reliability. Carbon fiber reinforcements (e.g. SDM-X, BDMS) may be used in tip or shear-web areas to reduce weight. Overall, our blades are engineered to maximize energy capture while meeting IEC design loads.

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Key Features

Aerodynamic Profile: Tailored airfoil design for each turbine model, with polished gelcoat finish.
Composite Structure: Multi-layer fiberglass (and carbon) laminates, often sandwich-cored (balsa/PVC foam) for stiffness and low weight.
Lightning & Erosion Protection: Integrated conductor paths and abrasion-resistant strips on leading edges.
Low-Noise Tips: Serrations or winglets available to reduce tip vortex noise.
Pre-bending: Curvature in the static blade ensures optimal shape under load (prebend angle).
Custom Add-ons: Options for vortex generators, de-icing elements, or trailing-edge flaps can be integrated.

Benefits

High Energy Capture: Optimized for maximum lift across wind speeds, boosting annual energy production.
Lightweight Strength: Composite materials cut blade weight significantly, allowing longer spans without exceeding structural limits.
Reduced Noise: Specialized tip and aerodynamic features minimize noise, important for onshore installations.
Durability: Tough resin systems and surface coatings withstand fatigue, UV and rain erosion, leading to long service life.

Applications

Suitable for onshore and offshore utility-scale wind turbines (1.5 MW to 15+ MW). Blades are customized to fit specific turbine models (rotor diameters) and can be used in new installations or as replacements in major maintenance overhauls.

Technical Specifications

Typical blade materials include E-glass or S-glass fiber (with carbon layers in high-load areas) infused in epoxy. Blades often contain 50–70% fiber volume. For example, a 3 MW blade might be ~60 m long and weigh ~10 tons. Each blade is subject to full-scale certification tests (static bending and fatigue per IEC 61400-23). Standard features include dimension tolerances ±2 mm and gelcoat color stability.

Unique Selling Points (USPs)

Our blades incorporate industry-leading design standards for reliability. As noted by LM WindPower, “features blend high performance and reliability”. We use proven material systems (ULTRALITE gelcoats, SafeReceptor lightning) and offer rapid prototyping for custom blade lengths. Continuous manufacturing processes (e.g. pultrusion of carbon spar caps) ensure consistent quality. Per industry data, carbon-fiber reinforcements allow longer, lighter blades without compromising stiffness, giving our blades a performance edge.