Custom Forged Cylinder Open Die Forging Process Cylinder Sleeve For Industrial Gearbox

Hollow Shaft Forgings :

Our forged hollow shafts are designed for high-performance applications where reduced weight and excellent torsional strength are critical. Manufactured through open die forging or customized mold forging, our hollow shafts offer superior mechanical properties, structural integrity, and dimensional precision.

We produce hollow shafts ranging from 100 kg to 7000 kg, with customized dimensions and internal diameters available upon request.

Reliable Open Die & Closed Die Forgings (100-7000KG) – Direct from Manufacturer

Key Features:

Our forged hollow shafts are designed for high-performance applications where reduced weight and excellent torsional strength are critical. Manufactured through open die forging or customized mold forging, our hollow shafts offer superior mechanical properties, structural integrity, and dimensional precision.

We produce hollow shafts ranging from 100 kg to 7000 kg, with customized dimensions and internal diameters available upon request.

About Our Forging Factory
With more than 30 years of forging experience, we are a leading manufacturer of open die and closed die forgings in China, focusing on components for industrial gearboxes, wind turbines, and port machinery. Our forging range covers parts from 100kg up to 7000kg, produced with 5T, 8T, and 12T electro-hydraulic hammers.

We are the largest long-term supplier to Nanjing High Speed Gear (NGC), providing high-performance gear shafts and blanks with stable quality. We are also the primary forged wheel supplier for ZPMC (Shanghai Zhenhua Port Machinery), with our products exported globally with ZPMC’s port equipment. In the wind energy sector, we supply forged components to leading companies such as Goldwind, Mingyang, and Southern Aerospace.

We operate a fully equipped in-house testing laboratory to ensure quality, and offer optional rough machining, heat treatment, and UT/MT inspections. Our manufacturing is certified under ISO 9001, ISO 14001, and ISO 45001 standards.

Reliable Wind Power Gear Components – Forged for Strength

More products we are producing:

We have our Own Inspection Lab:

These are the main inspection equipments:

We operate a fully equipped in-house laboratory dedicated to mechanical, chemical, and metallurgical testing. This allows us to perform real-time quality checks throughout the entire production process—from raw material selection to final inspection.

Our laboratory testing equipment includes:

Spectral Component Analyzer – for chemical composition analysis

Hydraulic Universal Testing Machine – for tensile and yield strength testing

Impact Strength Testing Machine with Cryogenic Tank – for room temperature and low-temperature impact testing

Brinell & Rockwell Hardness Testers – to assess surface and core hardness

Ultrasonic Flaw Detector – for internal defect detection (UT)

Metallurgical Microscope – for grain structure and heat treatment evaluation

Program-Controlled Box Furnace – for heat treatment simulations and metallurgical testing