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.
Milling balls, otherwise called crushing media, assume an urgent role in different modern cycles, including material comminution. These little, round objects are intended to proficiently crush, homogenize, and blend different materials, going from minerals and metals to synthetic substances and ceramics. At Ninghu, we have practical experience in assembling excellent products that fulfill severe industry guidelines, guaranteeing ideal execution and unwavering quality in many applications.
They are meticulously engineered to deliver superior grinding efficiency and durability, making them indispensable tools in industries such as mining, cement production, and pharmaceuticals. Crafted from premium materials, our grinding media exhibit exceptional wear resistance, ensuring prolonged service life and consistent performance in demanding environments.
| 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 has established itself as a leading manufacturer of wear-resistant materials, leveraging cutting-edge production technology and a state-of-the-art fully automated production line. With an annual production capacity of 50,000 tons, we adhere to strict quality control measures and have obtained ISO9001 certification. Additionally, we are designated suppliers for major domestic import and export companies, underscoring our commitment to delivering premium-quality products and services.
Ninghu is a professional manufacturer and supplier of milling balls, offering a diverse range of high-quality grinding media tailored to meet the needs of industrial applications worldwide. With our own factory, customizable solutions, ample inventory, and efficient delivery services, we are committed to delivering excellence and innovation to industries around the globe. For inquiries and orders, please contact us at sunnyqin@nhgrindingmedia.com.
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.