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Forgings & Castings Wind Turbine Main Shaft Ductile Cast Iron 0.75-6MW

Categories Wind Turbine Castings
Brand Name: Guangda
Model Number: 1.5MW,2MW,3MW,4MW ,5MW, 6MW etc.
Certification: DNV, BV, Rina, ISO, GL, ABS, LR ,CCS ,PED
Place of Origin: Jiangsu China
Payment Terms: L/C, D/A, D/P, T/T
Supply Ability: 10000pcs/year
Delivery Time: 15-45 days
Material: QT350-22AL ,QT400-18AL ,QT500-14, QT500-7, QT600 etc .
UT: EN12680-3
Application: Turbine ,wind power turbine ,wind industry
Steel Grade: Spheroidal cast irons
MPI: EN1369
Metallic products inspection: EN10204-2004
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Forgings & Castings Wind Turbine Main Shaft Ductile Cast Iron 0.75-6MW


Forgings and Castings Wind Turbine Main Shaft Ductile Cast Iron 0.75-6MW


A wind turbine generates electricity by harnessing the power of wind. A wind turbine shaft is the most central part of a wind turbine, subjected to highly dynamic loads and operating conditions. The energy from wind is converted into mechanical energy with the help of blades and rotors, which is then transferred to a generator through the gear box and shaft.

The wind turbine generally consists of two types of shafts i.e. main shaft and generator shaft. The main shaft is a low speed shaft with the turbine rotor bolted through a strong disc. The generator shaft is a high speed shaft coupled with the output shaft of the gearbox.


Wind power castings mains shaft specification


ApplicationMain shaft
Steel GradeSpheroidal cast irons QT350-22AL ,QT400-18AL ,QT500-14, QT500-7, QT600 etc .
UTEN12680-3
MPIEN1369
Metallic products inspectionEN10204-2004
Surface treatmentSand blasting ,Corrosion protection and painting

Advantages for the casting main shaft compared with the forging main shaft


  • Casting molding, reduce the amount of processing, lower than forging cost.
  • The outer ring metal shape ensures the densification of the spindle surface.
  • The internal quality of the spindle is ensured by optimizing the process through simulation.
  • Ensure the safety of production process through reasonable design of tooling.

Wind power castings Test


  • Material chemical composition test
  • Material mechanical properties test
  • Ultrasonic testing sound speed measurement
  • Casting wall thickness test
  • Ultrasonic test
  • Casting blank dimensions test
  • Metallurgical microstructure test
  • Magnetic partice inspection
  • Size test during machining and finished products
  • Heat treatment technology curve
  • Corrosion protection test
  • EN10204-3.1 certificate
  • Quality certifixation of raw material

Guangda wind turbine products overview


Wind turbine casting partsRotor Hub, Nacelle head carrier , Main carrier, Main shaft ,Shaft sleeve, Torque arm ,Shell frame, Support base , Yaw base plate, Planet carrier ,Cover, Frame, Ring , Tower connection part, Nacelle connection part, All kinds of the structure parts for the widn turbines .
Wind turbine forging partsMain shaft, Flange, Yaw flange ,Rolled Ring, Flanges , Gear box parts etc.
Wind turbine gear box partsTorque arm ,Planet shaft, Sun shaft, Planet gear, Internal gear, Planet carrier, Gear box cover etc.

Smelting & Casting & Machining&Surface treatment, one-stop castings delivery capability


Max length/Diameter15m
Max weight200T
MaterialQT350-22AL ,QT400-18AL ,QT500-14, QT500-7, QT600 etc .
MachiningTurning, milling, boring ,grinding, finished machining, gear shaping ,gear hobbing, gear grinding capability.
Heat treatmentNormalizing, QT, annealing, carburizing, nitriding with complete heat treatment capacity
Surface treatmentHigh-pressure cleaning, sand blasting and thermal spraying. Complete surface treatment capability.

About Guangda


Guangda is a professional manufacturer for the wind turbine parts including the wind turbine castings ,forgings and gear box parts . As we are an integrated steel manufacturer from smelting, forging,casting, heat treatment to precision smart manufacturing .We could provide rough blank or semi-finishing or finishing parts for the wind power industry .


We have deep cooperation with ZF, Mingyang ,DEC,Windey, Envision, NGC,Flender,Shanghai electric ,CRRC. In the field of wind power technology, Guangda manufactures ready-to-install cast parts for wind turbines, according to your specifications and requirements, including heavy-duty and complex components made of a wide variety of materials.


Factory, Custom Wind Turbine OEM/ODM Manufacturing

Wind power components,wind turbine components

wind turbine nacelle head carrier,casting carrier,turbine nacelle head carrier

large head cover,large wind turbine parts,large turbine parts

Spheroidal Graphite Cast Irons

On shore wind power turbine

Off shore wind power turbine


Guangda Core advantage
  • Listed company. Strong scientific research ability , Strength for Market experience and customer service .
  • Completed industrial supply chain for smelting, casting ,forging, heat treatment to the precision finished processing.
  • Better control for the cost ,quality,delivery term as we control every link of the completed chain.
  • Certificate PED,DNV, BV, Rina, ISO, GL, ABS, LR etc.
  • Different industry bases :Smelting,Forging,Cast steel, cast iron ,Precision Intelligent Manufacturing Base.
  • Experience:Cooperation with many Europe customers more than 10years and quick delivery time and fast service.

Main shaft in factory





Quality Forgings & Castings Wind Turbine Main Shaft Ductile Cast Iron 0.75-6MW for sale
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