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Development History

 
1990

Ningguo Steel Ball Factory was established in Shanmen Town, Ningguo City, Anhui Province.

 
1993

Anhui Ningguo Ninghu Steel Ball Co., Ltd. was officially established.

 
2006

• Moved into new site which is located in the Economic and Technological Development Zone of Ningguo City, Anhui Province

•“Dayang” brand chromium alloy was recognized and awarded by the China Building Materials Machinery Industry Association, establishing it as a renowned product in the Chinese building materials machinery industry.

 
2009

Anhui Ninghu Steel Ball Co., Ltd. achieved sales revenue exceeding 100 million yuan.

 
2011

The automated casting production line has been completed and put into operation.

 
2013

The company has been awarded the “High-Tech Product Certification” by the Anhui Provincial Department of Science and Technology.

 
2014

The company has been awarded the certificate of Anhui Province Recognized Enterprise Technology Center.”

 
2020-2022

Recognized by the National Administration of Work Safety as a “Level Three Standardized Enterprise for Safety Production (Machinery)” and was evaluated by the Anhui Provincial Department of Economy and Information Technology as an “Anhui Provincial Green Factory” and High-tech enterprise.

 
2023

The company has comprehensively completed technical upgrades by achieving numerical control and intellectualizations of melting, molten iron transportation, sand treatment and pouring.

 
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We will continue to explore and innovate, strive to transform Ninghu into a high-quality manufacturer of wear-resistant materials, aiming to expand our presence globally.

Customer reviews background image

Here are some reviews from our users:

March 19, 2024

Deployed in a cement clinker grinding mill, these high-chromium cast grinding balls feature stable hardness and low breakage. They help us maintain consistent grinding output and lower long-term consumable costs.

June 24, 2025

Used in a copper-ore wet-grinding ball mill, the grinding balls show durable wear resistance under non-stop 24-hour operation. Stable grinding performance reduces frequent mill inspections for abnormal ball damage.

August 12, 2025

Used in an iron-ore grinding mill, these high-chromium cast grinding balls maintain uniform hardness from batch to batch. They withstand sustained heavy-load impacts well with minimal breakage, and reliable wear performance keeps our throughput steady over long operating cycles.

October 07, 2025

Adopted for a gold-ore grinding mill, these high-chromium cast balls have evenly distributed hardness. They hold up well under complex abrasive conditions, and their consistent wear profile helps us achieve fine, uniform particle size throughout service.

January 15, 2026

Applied in a limestone grinding production line, the cast steel balls perform reliably under fluctuating load conditions. Well-balanced wear characteristics effectively cut down unplanned downtime.

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