100kg - 7ton Forged Steel Flange 42CrNiMo C45 Close Die Forging OEM Available

Forged Steel Flange 42CrNiMo / C45 – Gearbox and Crane Components – OEM Available

Our forged steel flanges made from 42CrNiMo and C45 carbon steel are engineered for high-strength applications such as gearboxes, cranes, and heavy equipment. These components are produced through precision open or closed die forging, ensuring superior mechanical performance, shock resistance, and dimensional accuracy.

With weight capabilities from 100kg to 7000kg, we offer full OEM support, including custom forging, heat treatment, and CNC machining based on your specifications or drawings. All flanges are subjected to ultrasonic testing (UT) and mechanical property inspections, meeting international standards such as DIN, GB, and ISO.

Our forged flanges are widely used in industrial power transmission, marine handling systems, and construction machinery, trusted by leading OEMs in the global market.

We support custom dimensions, heat treatment specifications, and machining processes based on customer drawings or technical requirements. With over 25 years of forging expertise, our flanges comply with ISO, GB, and DIN standards, and are ultrasonically tested for internal quality assurance. Trusted by top-tier clients in wind energy and port equipment sectors.

Key Features:

• Material: 42CrMo, 42CrNiMo, 18CrNiMo7-6, 20CrMnMo, C45, C35

• Forging Type: Open die / Closed die

• Weight Range: 100kg – 7000kg

• Heat Treatment: Normalizing, Quenching + Tempering

• Machining: Rough / Semi-finished / Precision CNC

• Standards: Custom / GB / DIN / ANSI

• Applications: Wind turbines, port cranes, gearboxes, engineering machinery

Custom 42CrMo / 42CrNiMo / 18CrNiMo Forged Shafts, drives for Wind Turbine Gearboxes (100–1000KG). We manufacture custom forged shafts and drive components made from premium alloy steels including 42CrMo, 42CrNiMo, and 18CrNiMo, specifically engineered for wind turbine gearbox applications. These forged parts range from 100KG to 1000KG, and can be tailored to meet your exact design and performance requirements.

Material Options:

• 42CrMo – A high-strength alloy steel with excellent toughness and hardenability, widely used for heavy-duty drive shafts.

• 42CrNiMo – A nickel-molybdenum alloy steel offering superior impact resistance and stability in harsh, low-temperature environments.

• 18CrNiMo – A carburizing alloy steel combining high surface wear resistance with strong core toughness, ideal for long-life gear shafts

  

   

   

Key Features:

• Weight range: 100–1000KG

• Available in various shapes: stepped shafts, spline shafts, solid or hollow structures

• Forged and heat-treated for enhanced mechanical properties

• CNC pre-machining or rough machining available upon request

• 100% Ultrasonic testing and Magnetic Particle Inspection

Applications:

• Main shafts and input/output shafts in wind turbine gearboxes

• High-torque drive components in renewable energy systems

• Custom transmission shafts for planetary and parallel gear reducers

• Offshore and onshore wind power equipment

Manufacturing Process:

The shafts are produced using open die forging or precision closed die forging, followed by appropriate heat treatment such as quenching & tempering or carburizing. Each part is processed to achieve optimized grain flow and superior fatigue resistance. All products are strictly inspected and can be delivered with pre-machined surfaces to facilitate your final assembly or finish machining.

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?

✅ 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

• High torsional strength & fatigue life

• Optimized grain flow via precision forging

• Crack-free forging surfaces

• Enhanced mechanical reliability under extreme loads

• Full traceability and quality documentation (MTC available)

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.