Precision 18CrNiMo7-6 Open Die Forgings Customizable Open Forging Process For Umbrella Gears

Precision 18CrNiMo7-6 Open Die Forgings  for Wind Power Sun Gear Transmission 

These precision open die forgings are manufactured from high-grade 18CrNiMo7-6 alloy steel, renowned for its excellent hardenability, wear resistance, and core toughness—making it ideal for high-load and long-life gear transmission systems in wind turbines.

Forged using hydraulic hammers and controlled thermal processes, each component features a refined grain structure and enhanced internal integrity. The open die forging process supports large-diameter gear blanks with complex geometries while ensuring mechanical uniformity across critical sections.

Key Features

• High-Performance Alloy Steel: Forged from 18CrNiMo7-6, known for excellent hardenability, wear resistance, and strength—ideal for critical rotating parts in wind power systems.

• Open Die Forging Process: Hydraulic hammers (5T–12T) enable precise forging of large gear blanks, ensuring uniform grain flow and low porosity.

• Enhanced Structural Integrity: Forging ratio ≥ 3.0 helps refine grain structure and improve fatigue resistance under fluctuating loads.

• Machining-Ready Quality: Excellent dimensional stability and machinability for downstream gear hobbing, shaping, and grinding.

Application Areas

• Main Gear Drives in Wind Turbine Gearboxes: Suitable for high-torque, high-speed transmission systems in both onshore and offshore turbines.

• Yaw and Pitch Drive Systems: Used in control gear assemblies that operate under frequent directional changes and load cycles.

• Renewable Power Installations: Designed for long-life, low-maintenance performance in variable environments, including coastal and extreme climate regions.