1, Incoming Raw Material Inspection
3, Open-Die Forging and Post-Forging Inspection
5, Physicochemical Inspection
6, Rough Machining and Semi-Finishing
7, Inspection
8, Precision Machining and Hole Processing
9, Final Inspection and Identification
10, Cleaning, Packaging, Storage
This manufacturing process addresses the challenges of machining high-strength alloy steel and large-scale components, while meeting the precision, strength, and long-term reliability requirements essential for hydroelectric turbine shafts.
Product Specifications
- Material: High-strength alloy steel (e.g. 42CrMo4, or customizable per client requirements)
- Length: 2.5 - 5m (customizable within this limit)
- Diameter: 400 – 1,200 mm (customizable)
- Weight: 3 – 10 tons
- Tolerance: ±0.01 mm
- Heat Treatment: Normalizing, Quenching & Tempering, or other customer-specified treatments
- Certification: ISO 9001, or customer-specific standards
Industry Applications
Designed for medium to large Francis turbines, the main shaft transmits hydraulic torque from the runner to the generator. It is widely used in hydroelectric power plants, supporting vertical and horizontal turbine configurations.
These shafts are suitable for applications requiring high torsional strength, fatigue resistance, and long-term cyclic stability, as well as mechanical testing rigs and industrial hydraulic systems that demand high-strength rotational components.
Illustration for reference only. Final components are manufactured to exact project specifications for reliable operation.
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