Sun Shaft: The Core Power Output Shaft of Wind Turbine Gearboxes
The sun shaft is a critical transmission component in wind turbine generator systems — a high-speed rotating power shaft responsible for torque transmission, centering, and supporting complex loads. Our precision-machined sun shafts are made from high-quality 18CrNiMo7-6 alloy steel, produced through a complete and controlled process chain that enhances torsional and fatigue resistance. Designed to meet the high-load requirements of medium and large-scale power generation equipment, they deliver exceptional strength, accuracy, and reliability.
Manufacturing Process
1, Raw Material incoming inspection,
2, Blank Cutting,
3, Open Die Forging,
4, Post-Forging Inspection,
5, Normalizing & Tempering,
6, Saw Cutting,
7, Rough Turning,
8, Deep Hole Drilling,
9, Heat Treatment (Quenching & Tempering) ,
10, Heat Treatment Inspection,
11, Physical & Chemical Testing,
12, Semi-Finish Turning,
13, Inspection (Body Hardne…