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Custom Seamless Rolled Ring Forging - China

price: contact company for price

Mechanical properties:

Deformation temperature: Hot forging

Surface treatment: quenching and tempering+quenching

Product Specification: It can produce various forgings with diameters ranging from 100mm to 4000mm

Product Material: Carbon steel, alloy steel, stainless steel, etc

Production process: Forging and CNC machining

Custom Seamless Rolled Ring Forging

The seamless rolled ring forging process combines strength, toughness, and fatigue resistance through a unique grain flow.

The process begins with cutting the initial material stock to size and then rounding it using open die presses.

This rounded piece is subsequently upset and pierced to create a preform, essentially a rolled ring forging ready for the ring rolling mill.

On the rolling mill, axial rolls control the ring's height, while an idler roll applies pressure against a drive roll.

These forces reduce the wall thickness and height of the rolled ring while increasing its diameter until the desired size is achieved.

At Runchi, we forge seamless rolled rings in a wide range of sizes and grades, including carbon and alloy steels, stainless steels, and custom-specific grades.

Advantages of Custom Seamless Rolled Ring Forging:

When it comes to obtaining metal rings for various applications, the choice of the metal forming process is crucial.

Cast rings often suffer from poor strength and integrity, while rings cut from plate materials and welded together can be susceptible to fatigue, excessive material, and processing costs.

Custom forging, as performed by Runchi experts, offers greater versatility and improved quality while reducing material expenses.

Additional benefits include:

Controlled directional grain flow

Increased strength

Enhanced structural integrity

Elimination of inclusions and porosity

Minimized waste

Elimination of welding, reducing the risk of part fatigue and breakage


Company Contact:


  • Phone: +8653317851571

  • Address: Jingzhong Town, Linzi District, Zibo City, Shandong Sheng, China

  • Email: Email


Published date: January 6, 2025

  • Business Description: Shandong Runchi Machinery Technology Co., Ltd. is a modern forging enterprise that integrates forging, heat treatment, and machining.

    At present, we can produce ring forgings with a maximum diameter of 6500mm and a maximum of 10 tons of open die forging.

    The company has advanced testing equipment, which can carry out ultrasonic flaw detection, magnetic particle testing, hardness testing, mechanical property testing, metallographic analysis, chemical analysis and other inspection items for forgings.

    The company has passed ISO9001 quality system certification, ISO14001 system certification, OHSAS18001 system certification, weapons and equipment quality management system certification, Class A manufacturing license for pressure vessel components, CCS China Classification Society certification, BV French Classification Society and other certifications.

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