Wind Turbine Foundation Bolt
A wind turbine foundation bolt manufactured by LG Industries (also called anchor bolt or tower anchor bolt) is a critical structural fastener used to securely fix the wind turbine tower to its concrete foundation. These bolts transfer dynamic loads, wind forces, vibration, and overturning moments from the turbine to the foundation.
Key Features
High tensile strength to withstand cyclic and fatigue loads
Designed for large diameter & long embedment depth
Precision threading for accurate tower flange alignment
Suitable for onshore and offshore wind turbines
Common Types of Wind Turbine Foundation Bolts
J-Type Foundation Bolt
J-shaped end for strong anchorage
Widely used in onshore wind turbine foundations
L-Type / Hook Type Bolt
Provides enhanced pull-out resistance
Used in heavy-load turbine installations
Straight Foundation Bolt with Plate (Plate Welded Type)
MS plate welded at the bottom
High load capacity and uniform stress distribution
Double Ended Anchor Bolt
Threaded on both ends
Used with sleeves or templates during casting
Material & Grades
Carbon Steel / Alloy Steel
Common Grades: IS 2062, EN 8, EN 19, ASTM A36, ASTM A193 B7
Heat-treated for high tensile strength
Surface Finish
Hot Dip Galvanized (HDG) – preferred for wind turbines
Electro Galvanized / Black Finish (as per requirement)
Corrosion protection as per ISO 1461 / ASTM A123
Typical Specifications
Diameter: M30 to M90 (custom sizes available)
Length: 1500 mm to 6000 mm
Thread: Metric / UNC / UNF
Accessories: Heavy hex nuts, plain & spring washers, templates
Applications
Onshore wind turbine tower foundations
Offshore wind turbine base structures
Hybrid & renewable energy projects
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