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Cast Iron High Chrome Grinding Media Balls

Cast Iron High Chrome Grinding Media Balls

This type of grinding balls are produced with different chemistries、 steel and cast iron, with chrome contents ranging from 1% to 32% and sizes ranging from 4.8mm to 150mm. Different heat-treatment cycles are used to impart specific metallurgical properties depending on the intended application. Whether the predominant wear mechanism is abrasion, corrosion or impact, NINGHU can offer a product to suit.

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What is Cast Iron High Chrome Grinding Media Balls?

Cast Iron High Chrome Grinding Media Balls, also known as chromium alloyed cast iron grinding balls, are widely used in cement, mining, thermal power generation, etc., due to their excellent wear resistance, high hardness, and impact toughness. These grinding balls are meticulously engineered to meet the demanding requirements of grinding applications across various industries.

With a comprehensive understanding of the market demands and advanced manufacturing techniques, we, at NINGHU, are proud to offer top-quality media balls that excel in performance and durability. Our commitment to innovation and excellence drives us to continually improve our products to meet and exceed customer expectations.

Advantages and Features:

  1. Superior Wear Resistance: Our grinding media balls are manufactured with high-quality materials, ensuring exceptional wear resistance, thereby prolonging the lifespan of grinding equipment.

  2. High Hardness: These grinding balls possess high hardness, providing efficient grinding performance and maintaining shape and size consistency throughout the grinding process.

  3. Excellent Impact Toughness: With excellent impact toughness, our grinding media balls can withstand the impact of large particles, ensuring stable and efficient grinding operations.

  4. Uniform Microstructure: Each grinding ball is meticulously crafted with a uniform microstructure, ensuring consistent performance and minimizing wear on grinding equipment.

  5. Optimized Chemical Composition: Our grinding media balls are designed with an optimized chemical composition to ensure superior performance and compatibility with various grinding applications.

Technical Parameters:

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

Process Flow:

  1. Raw Material Selection: High-quality raw materials are carefully selected to ensure optimal performance and durability of the grinding media balls.

  2. Melting and Casting: The selected raw materials are melted in electric furnaces and cast into precise molds to form the desired shape and size of grinding balls.

  3. Heat Treatment: The cast grinding balls undergo heat treatment processes such as quenching and tempering to enhance hardness and optimize microstructure.

  4. Surface Treatment: Surface treatments like shot blasting or polishing are applied to ensure smooth surface finish and improve wear resistance.

  5. Quality Control: Rigorous quality control measures are implemented throughout the manufacturing process to guarantee the consistency and reliability of the grinding media balls.

Application Fields:

  1. Cement Industry: Cast Iron High Chrome Grinding Media Balls are extensively used in cement mills for grinding clinker, gypsum, and other materials to produce cement of the desired fineness.

  2. Mining Industry: These grinding balls are essential for crushing and grinding ore particles in mining operations, ensuring efficient extraction of valuable minerals.

  3. Thermal Power Generation: In thermal power plants, our grinding media balls are utilized in coal mills for pulverizing coal and achieving optimal combustion efficiency.

Self-developed Factory:

NINGHU has cemented its status as an industry trailblazer in the realm of wear-resistant materials manufacturing, leveraging a rich reservoir of over three decades of unparalleled experience. As a vanguard high-tech enterprise and a pivotal member of the esteemed China Foundry Association, we remain steadfast in our unwavering commitment to upholding the apex standards of quality and driving relentless innovation. The prestigious ISO9001 certification serves as a tangible manifestation of our relentless pursuit of excellence, while our cutting-edge fully automated production line epitomizes precision and efficiency at unparalleled levels. An impressive annual production capacity scales up to 50,000 tons. We are strategically positioned to seamlessly cater to the dynamic and evolving demands of the global mining and mineral processing sectors, poised for sustained growth and dominance in the market.

After-sales Service:

At NINGHU, prioritizing customer satisfaction is paramount, driving us to deliver unmatched post-sales service that secures the enduring success of our clientele. Our excellence in post-sales service encompasses:

  • Rapid Responsiveness: Our committed customer service unit guarantees swift reactions to inquiries and issues, delivering timely aid and resolutions.
  • Technical Expertise: We furnish extensive technical expertise to aid clients in maximizing the performance and efficacy of our offerings.
  • Product Assurance: We uphold the excellence and dependability of our products, providing warranty protection and support in the unlikely event of product flaws or challenges.

Contact Us

NINGHU is your trusted partner for high-quality Cast Iron High Chrome Grinding Media Balls. With our own factory, support for customization, ample inventory, and fast delivery, we provide excellence and innovation to various industries worldwide. If you are interested in our products or have any inquiries, please contact us at sunnyqin@nhgrindingmedia.com.

In conclusion, our grinding media balls offer superior performance, durability, and reliability, making them the ideal choice for grinding applications across various industries. Choose NINGHU for top-quality grinding media solutions and experience unparalleled customer service and support.

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