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.
Casting grinding balls stand at the forefront of industrial operations where precision and durability are paramount. These spheres of excellence redefine the standards of grinding and milling, offering unmatched performance across diverse applications. As a leading manufacturer and supplier of the products, Ninghu brings forth a legacy of innovation and reliability, catering to the discerning needs of global industries.
| Mechanical Properties and Microstruture | |||||
| Name | Designation | HRC | Impact Value (J/cm²) |
Microstruture | Falling Times |
| Special High Chromium Alloy Casting Grinding Balls | ZQCr26 | ≥60 | ≥4.0 | M+C | ≥20000 |
| ZQCr20 | ≥60 | ≥4.0 | M+C | ≥20000 | |
| Ultra-high Chromium Alloy Casting Grinding Balls | ZQCr15 | ≥60 | ≥4.0 | M+C | ≥20000 |
| Ordinary High Chromium Alloy Casting Grinding Balls | ZQCr12 | ≥58 | ≥3.5 | M+C | ≥18000 |
| Medium Chromium Alloy Casting Grinding Balls | ZQCr8 | ≥48 | ≥2.5 | P+C | ≥12000 |
| ZQCr5 | ≥47 | ≥2.0 | P+C | ≥12000 | |
| Low Chromium Alloy Casting Grinding Balls | ZQCr2 | ≥45 | ≥2.0 | P+C | ≥10000 |
| Carbide Ductile Iron Grinding Balls | ZQCADI | ≥50 | ≥2.0 | P+C | |
| M-Martensite P-Pearlite A-Austenite C-Carbide | |||||
Ninghu epitomizes excellence in quality assurance, fortified by a state-of-the-art manufacturing facility equipped with cutting-edge technology. With an annual production capacity of 50,000 tons, we adhere to stringent quality control measures, ensuring adherence to ISO9001 quality system certification. As designated suppliers of major domestic import and export companies, our commitment to quality and reliability remains unwavering.
Ninghu stands as a beacon of excellence, offering high-quality wear-resistant solutions that redefine industry standards. With our own factory, customization capabilities, extensive inventory, and prompt delivery, we emerge as your trusted partner in enhancing operational efficiency and productivity. Contact us at sunnyqin@nhgrindingmedia.com to embark on a journey of excellence and innovation with Ninghu.
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.