100KG - 1000KG Alloy Steel Forging Shaft For Wind Turbine Main Drive 42CrNiMo 18CrNiMo
100–1000KG Alloy Steel Forging Shaft for Wind Turbine Main Drive | 42CrNiMo, 18CrNiMo
Heavy Duty Precision Forged Steel Shaft100–1000KG Alloy Steel Forging Shaft for Wind Turbine Main Drive
Premium 42CrNiMo / 18CrNiMo Forged Shafts | Precision Engineered for Wind Power
Boost the performance and reliability of your wind turbine systems with our heavy-duty forged steel shafts, precisely manufactured from 42CrNiMo and 18CrNiMo alloy steel grades. Designed to endure extreme load conditions, our shafts are ideal for main drive applications in wind turbines from 1.5MW to 6MW+.
Heavy Duty Precision Forged Steel Shaft
42CrMo / 42CrNiMo / 18CrNiMo | 100–1000KGS | For Wind Power Turbines
Reliable Forging Solutions for High-Performance Wind Turbine Gearboxes
We manufacture precision-forged steel shafts made from 42CrMo, 42CrNiMo, and 18CrNiMo, designed to meet the demanding requirements of wind turbine main gearboxes and drivetrain systems. Our shafts range from 100kg to 1000kg, offering robust strength, excellent fatigue resistance, and long-term durability.
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Industry Use:
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Wind turbine gearbox shafts
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Port crane gear shafts
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Construction machinery power transmission
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Heavy-duty industrial reducers
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Key Product Features
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Weight Range: 100–1000KG per piece
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Materials:
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42CrNiMo – High toughness & fatigue resistance
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18CrNiMo – Excellent hardenability & surface strength
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Forging Process: Open die or closed die forging with optimized grain flow
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Condition: Forged + Rough Machined / Semi-finished / Final Machined (per drawing)
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Standard Compliance: GB / DIN / ASTM standards available
Application in Wind Power Industry
Our forged shafts are engineered for:
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Main shaft of wind turbines
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Intermediate gearbox shafts
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High-load gear drive systems
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Yaw and pitch control mechanisms
Mechanical Properties (Typical values after heat treatment):
| Property | 42CrMo | 42CrNiMo | 18CrNiMo |
|---|---|---|---|
| Tensile Strength | 850–1100 MPa | 900–1150 MPa | 1000–1200 MPa |
| Yield Strength | ≥ 650 MPa | ≥ 700 MPa | ≥ 750 MPa |
| Elongation | ≥ 14% | ≥ 13% | ≥ 12% |
| Impact Toughness | ≥ 40J (at -20°C) | ≥ 45J (at -20°C) | ≥ 50J (at -20°C) |
| Hardness (HB) | 229–269 | 248–302 | 270–310 |
Customization available based on specific mechanical requirements.
Compatible with turbines from 1.5MW to 6MW and above.
Applications:
A. Wind power generation
B. Port heavy machinery
C. Mining
D. Ship building
E. Chemical industry
F. Petroleum industry
G. Metallurgy industry
H. Hydraulic industry
I. Other manufacturing industries of various industrial equipment, transmission gear box, parts and etc.
The steel forgings production flow:
Raw material steel ingot into warehouse(test the chemical composition) → Cutting→ Heating(Furnace temperature test) → Heat treatment after forging(Furnace temperature test) Discharge the furnace(blank inspection)→ Machining→ Inspection(UT,MT,Visal dimension, hardness)→ QT→ Inspection(UT, mechanical properties, hardness, grain size)→ Finish machining→ Inspection (dimension)→ Packing and Marking(steel stamp, mark)→ Storage Shipment.
Advantages:
Reduced customer machining time
Stable dimensions and structure after heat treatment
Flexible customization of materials and dimensions
Quality consistency through controlled forging and machining processes
Delivered ready for final precision machining
Key Figures
A. More than 25 years of professional free forging and open-die forging manufacturing experience
B. The company covers an area of 71,000 square meters
C. The construction area of the production workshop is 12,000 square meters
D. Total number of employees: 158
E. 28 engineering and technical personnel
F. 59 skilled workers
G. Annual production capacity is 38,000 tons
H. Annual raw material steel throughput turnover reaches 56,000 tons
| Main Forging service Machine list: | sets | |
| Sample Inspection tester machines in the lab. | ||
| 1 | Spectrometer | 1 |
| 2 | Impact testing machine | 1 |
| 3 | Tensile testing machine | 1 |
| 4 | Metallographic microscope | 1 |
| 5 | Brinell hardness tester | 1 |
| 6 | Notch projector | 1 |
| 7 | Quenching test machine | 1 |
| 8 | high-precision flaw detector | 2 |
| Natural gas equipment | ||
| 1 | Natural gas furnace 15Ton | 6 |
| 2 | Natural gas furnace 20Ton | 1 |
| 3 | Natural gas furnace 30Ton | 3 |
| 4 | Natural gas furnace 40Ton | 1 |
| Sawing machine | 16 | |
| 5 | 5 Ton electro-hydraulic forging hammer | 1 |
| 6 | 8 Ton electro-hydraulic forging hammer | 1 |
| 7 | 12 Ton electro-hydraulic forging hammer | 1 |
| operation machine | ||
| 8 | 10 Ton loader machine | 1 |
| 9 | 15 Ton loader machine | 1 |
| 10 | 20 Ton Loader machine | 1 |
| Material carrier machine | ||
| 12 | 10 Ton material carrier | 1 |
| 13 | 20 Ton material carrier | 1 |
| 14 | Heat Treatment electric furnace 5Ton | 1 |
| 15 | Heat Treatment electric furnace 15Ton | 1 |
| 16 | Heat Treatment electric furnace 50Ton | 1 |
| 17 | Heat Treatment electric furnace 60Ton | 1 |
| 18 | Heat Treatment electric furnace 60Ton | 1 |
| 19 | horizontal lathe, vertical lathe,CNC vertical lathe,machining equipment | 31 |
Why Choose Our Forged Steel Shafts?
✅ 25+ Years of Forging Expertise
✅ In-house Quality Control & Testing Lab
✅ ISO9001 / ISO14001 / ISO45001 Certified
✅ Reliable Partner of Top Gearbox Brands (Goldwind, NGC, ZPMC, etc.)
✅ Customized Dimensions & Tolerances Based on Drawings
Typical Features of Our Wind Turbine Shafts
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High torsional strength & fatigue life
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Optimized grain flow via precision forging
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Crack-free forging surfaces
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Enhanced mechanical reliability under extreme loads
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Full traceability and quality documentation (MTC available)
Technical Capabilities
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Heat Treatment: Normalizing, Quenching & Tempering
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Surface Condition: Turned, peeled, or as-forged
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NDT: UT, MT as per customer requirements
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Dimensional Tolerance: As per DIN/ASTM/GB standard or custom specs.
Frequently Asked Questions (FAQs)
1. What is your forging weight range?
We produce forged parts ranging from 100 kg to 7000 kg.
2. Do you provide heat treatment and machining?
Yes, we offer full in-house heat treatment, rough, and finish machining services.
3. Which industries do you supply to?
We serve wind energy, heavy equipment, port machinery, transmission systems, and more.
4. What is your production lead time?
With stock: Around 30 days
Without stock: 40–45 days
5. Where is your factory located?
In Changzhou City, near Shanghai, with shipping via Shanghai Port.
Customer visiting:
Why Choose Our Forged Steel Shafts?
✅ 25+ Years of Forging Expertise
✅ In-house Quality Control & Testing Lab
✅ ISO9001 / ISO14001 / ISO45001 Certified
✅ Reliable Partner of Top Gearbox Brands (Goldwind, NGC, ZPMC, etc.)
✅ Customized Dimensions & Tolerances Based on Drawings
Request a Quote
Please send your technical drawings and requirements to us. Our engineers will review and provide you with a professional quotation and solution shortly.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.







