---
title: "Tongyu Heavy successfully delivered the core components of the world's largest ring mill"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/259139583.md"
description: "Tongyu Heavy announced that recently, Tongyu Heavy Industry Co., Ltd. successfully delivered the world's largest diameter ring rolling machine core component—the main roller shaft, marking a new breakthrough for the company in the key technologies of high-end equipment manufacturing and the localization process of major equipment"
datetime: "2025-09-27T03:20:41.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/259139583.md)
  - [en](https://longbridge.com/en/news/259139583.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/259139583.md)
---

# Tongyu Heavy successfully delivered the core components of the world's largest ring mill

Tongyu Heavy announced that recently, Tongyu Heavy Industry Co., Ltd. successfully delivered the world's largest diameter ring mill core component—the main roller shaft, marking a new breakthrough for the company in the key technologies of high-end equipment manufacturing and the localization process of major equipment

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