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High Strength Wind Turbine Bolts Wholesale

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High Strength Wind Turbine Bolts Manufacturers

-- Steady & Reliable Manufacturer --

Introduction

Fasteners for wind turbines are among the most critical and highly engineered in the industrial world, requiring exceptional strength, fatigue resistance, and absolute reliability. Our High Strength Wind Turbine Bolts (typically Class 10.9 and 12.9) are manufactured under strict control to connect massive tower sections, hubs, and blades, enduring massive dynamic loads and extreme weather conditions. Full material traceability and non-destructive testing are standard requirements for all wind energy fasteners we supply.

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Specification

Property Class

10.9, 12.9 (Heavy Hex Configuration)
Diameter Range

M24 to M72 (Large Diameter)
Coating System

Zinc Flake (Geomet/Dacromet), Hot Dip Galvanized (Special)
Testing Required

Magnetic Particle Inspection (MPI), Ultrasonic Testing (UT)
Key Feature

High Fatigue Resistance

Applications

  • Tower Segment Flanges: Connecting large sections of the turbine tower.

  • Rotor Hub Assembly: Fastening the massive rotor hub to the gearbox and main shaft.

  • Foundation Anchoring: Securing the turbine base to the concrete foundation.

  • Yaw and Pitch Systems: Used in the mechanical systems that rotate the nacelle and adjust the blades.

Advantages

  • Critical Load Capacity: Designed for high pre-load and maximum resistance to fatigue failure.

  • Full Traceability: Complete documentation from raw material to final shipment, essential for liability and safety.

  • Specialized Coatings: Coatings optimized for long-term corrosion protection in high-vibration, dynamic environments.

  • Reduced Downtime: Reliable quality means fewer failures and lower maintenance costs over the turbine's lifespan.

Payment & Shipping

Due to the high cost and critical nature of these fasteners, payment terms typically include TT against final certified MTRs and a Performance Bond if required. Packaging is custom-engineered for heavy components, often in steel baskets or wooden crates with specialized corrosion inhibitors.

FAQ

  • Q: How is fatigue resistance ensured in these bolts?
  • A: Fatigue resistance is achieved through controlled cold forging, rolled threads (which enhance material grain flow), and stringent heat treatment processes to eliminate surface defects and optimize the microstructure of the steel.
  • Q: What are the main types of coatings used on wind turbine bolts?
  • A: The industry increasingly favors high-performance zinc flake coatings (like Geomet or Dacromet) because they provide excellent corrosion protection without the risk of hydrogen embrittlement associated with HDG on high-strength steels. HDG is sometimes used on lower-strength foundation bolts.

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Steady-Ind

Steady-Ind - Pursue quality and cast high-quality goods.

STEADY manufactures over a thousands different types of blind rivet nut in steel,aluminium and stainless steel,thread size from M3-M16 in metric and UNC #6-32 to UNC 1/2-13 in inch. High advantage in stainless steel blind rivets both for open and sealed type, mutigrip,monobolt and other structural rivets. As China High Strength Wind Turbine Bolts Manufacturers and High Strength Wind Turbine Bolts Factory, we focus on "one stop shopping" and with advantage of large production capacity , consistent quality, competitive prices, punctual delivery and goods serverices before and after sales, STEADY has become one of the leading blind fasteners manufacuture & supplier in Asia.

About Us Steady-Ind
Recommended LINS: High Tensile Structural Bolts 10.9 High Temperature Hastelloy Studs Full Thread Grade 8.8 Hex Bolts Stainless Steel 316 U-Bolts