42CrMo, 18CrNiMo7-6 100-1000KGS Precision Forged Steel Shaft For Wind Power Turbines

42CrMo, 42CrNiMo, 18CrNiMo100-1000KGS Precision Forged Steel shaft for Wind Power Turbines. We manufacture precision forged steel shafts using high-performance alloy steels such as 42CrMo, 42CrNiMo, and 18CrNiMo, specifically developed for wind turbine drivetrain systems. With a weight range from 100KG to 1000KG, these shafts are engineered to deliver outstanding strength, fatigue resistance, and dimensional accuracy under continuous high-load operation.

Material Grades:

• 42CrMo – A versatile alloy steel offering excellent toughness, wear resistance, and hardenability, ideal for medium to heavy-duty shafts.

• 42CrNiMo – A nickel-molybdenum alloy steel with superior fatigue and impact resistance, especially suitable for cold climates and dynamic loads.

• 18CrNiMo – A premium carburizing steel known for deep hardenability and superior surface hardness after heat treatment, perfect for long-life drive components.

Key Features:

• Weight range: 100–1000 KGS

• Custom shapes: straight shaft, stepped shaft, spline shaft, hollow or solid

• Close grain structure and directional fiber flow for enhanced fatigue resistance

• Heat treated for improved performance

• Precision pre-machined or rough-machined surfaces available

• Full quality inspection: ultrasonic testing (UT), magnetic particle inspection (MPI), and dimensional checks

Applications:

• Wind turbine main shafts and gear drive shafts

• Gearbox input and output shafts

• Coupling and transmission drive assemblies

• High-load rotating equipment in renewable energy systems

Production Process:

High-quality alloy steel is forged using open-die or closed-die processes, followed by heat treatment tailored to the final application. Precision forging and controlled cooling ensure optimal grain flow and metallurgical properties. Each shaft is inspected and optionally delivered with CNC pre-machining for seamless integration into wind turbine gear systems.

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.

Why Choose Our Forged Steel Shafts?

1. 25+ Years of Forging Expertise
2. In-house Quality Control & Testing Lab
3. ISO9001 / ISO14001 / ISO45001 Certified
4. Reliable Partner of Top Gearbox Brands (Goldwind, NGC, ZPMC, etc.)
5. Customized Dimensions & Tolerances Based on Drawings

Frequently Asked Questions (FAQs)

1. What is the typical weight spectrum of the forged components you manufacture? Our forging capabilities encompass a range of components weighing from 100 kilograms up to 7 metric tons.

2. Do you handle downstream processing such as thermal treatment and material removal? Indeed, we provide comprehensive in-house services for heat treatment, encompassing both preliminary and final machining operations.

3. Which industrial sectors are the primary beneficiaries of your forged products? We cater to a diverse array of critical industries, including wind power generation, heavy machinery manufacturing, port infrastructure, power transmission systems, and various others.

4. What are the typical timeframes for the completion and dispatch of orders? For items readily available in our inventory, the standard lead time is approximately 30 days. For custom-manufactured orders, the timeframe generally spans 40 to 45 days.

5. Could you provide information on the geographical location of your manufacturing facility and shipping hub? Our production plant is situated in Changzhou City, strategically located near Shanghai, and we utilize the Port of Shanghai for our shipping logistics.

Request a Quotation

To receive a tailored price assessment and a comprehensive engineering solution designed to meet your specific needs, please forward your detailed technical drawings and requirements to our dedicated team. Our experienced engineers will promptly review your submission and provide you with a professional quotation and a suitable solution.

About CHANGZHOU TIANGONG 

We are a Chinese company with over 30 years of forging experience. Our focus lies in the production of machine free forged products. We take pride in our independent quality assurance laboratory, which ensures that all our products meet our customers’ requirements. 

Our customers and partner value our products and services for 2 reasons: excellence and reliability.

Key figures 

A. Over 30 years professional free 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 of 158

E. 28 engineering and technical personnel 

F. 59 skilled workers 

G. Annual production capacity is 38,000 tons

H. Steel throughput can reach 56,000 tons

Efficient and reliable solutions for customers

Industrial sector application

We design and manufacture forged parts for all industrial areas applying our experience and unique professionalism and taking the specific requirements of the markets into account. This has led us to become a forging industry leader in all industrial segments and collaborating with leading companies.

A. Wind power generation

B. Port Heavy Machinery

C. Mining

D. Ship Building

E. Chemical industrial

F. Oil industrial

G. Metallurgical industry 

H. Hydraulic industry 

I. Other high-end industrial equipment, gearbox body, parts and etc.

Customized solutions 

Modular processes allow us to engineer a solution for almost every industrial application requiring free forged parts. Our modularity means flexibility, a wide range of options, faster delivery, and most important of all, competitiveness.

All our products and production process have been designed to assure excellent, reliable and long lasting unique mechanical performances, resulting in reduced operating costs and long life.

With a wide range of products and a significant experience gained in most industrial applications, we can also provide complete engineering recommendation for customers.