Casting Grinding Balls, so called as Casting Grinding media balls,casting grinding steel ball, crusher balls,mill balls, steel balls.Casting grinding balls are durable, abrasion-resistant media made from cast iron or steel (low, medium, or high-chromium). They are produced by pouring molten metal into molds and are mainly used in ball mills to crush materials in industries such as cement, mining, and power generation. These grinding balls provide high hardness and superior wear resistance.
Chrome cast steel balls are grinding media made with a specific percentage of chromium and are classified into high, medium, and low chromium cast steel balls. These chromium cast steel balls are known for their high hardness, low wear, and minimal breakage. They are widely used in industries such as cement, mining, metallurgy, power generation, and construction for efficient material grinding in ball mills.
Characteristics of Casting Grinding Balls
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Surface Hardness: Cast Grinding Media Balls generally have higher surface hardness than forged balls due to the heat treatment process.
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Internal Porosity: The casting process can create internal defects such as porosity or shrinkage cavities, which may impact durability.
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Brittleness: Cast grinding balls are typically more brittle than forged ones, making them more prone to breakage under high-impact conditions.
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Wear Resistance: Their wear resistance is usually lower than forged balls, especially in high-stress grinding environments.
Advantages of Cast Grinding Balls
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Lower Manufacturing Cost: Casting is a simpler and more cost-effective production process compared to forging.
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Consistent Hardness: Controlled heat treatment allows cast balls to achieve uniform hardness throughout.
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Customization: Chemical composition can be easily adjusted to meet specific grinding requirements.
Contact Our Experts – Discuss your project requirements and get professional recommendations for grinding media.
Casting Grinding Media balls produced by Molding Line
Casting grinding balls produced by Metal Mold
Casting Grinding Balls Size
| Ф8 | Ф10 | Ф15 | Ф17 | Ф20 | Ф25 | Ф30 |
| Ф35 | Ф40 | Ф50 | Ф60 | Ф65 | Ф70 | Ф75 |
| Ф80 | Ф90 | Ф100 | Ф110 | Ф120 | Ф125 | Ф130 |
Casting Grinding Steel Ball Chemical Composition
| Model | Casting Grinding Steel Ball Chemical Composition | |||||||
| C | Si | Mn | Cr | Mo | Cu | P | S | |
| Low chrome grinding ball | 2.2-3.5 | ≤1.2 | ≤1.5 | 0.8-2.5 | ≤1.0 | ≤0.5 | ≤0.15 | ≤0.15 |
| Medium chrome grinding ball | 2.0-3.3 | ≤1.2 | ≤1.8 | 2.5.0-9.0 | ≤1.5 | ≤1.0 | ≤0.15 | ≤0.15 |
| High chrome grinding ball | 1.6-3.3 | ≤1.0 | ≤2.5 | 10-18 | ≤1.0 | ≤1.5 | ≤0.10 | ≤0.10 |
| Super High chrome grinding ball | 2.0-3.3 | ≤1.0 | ≤2.5 | 22-25 | ≤2.0 | ≤1.5 | ≤0.10 | ≤0.10 |
Casting Grinding Balls Machnical Property
| Model | Mechanical properties | Metallurgical structure | |
| HRC | The degree of ball-drop | ||
| Low chrome grinding ball | ≥45 | ≥8000 | P+C |
| Medium chrome grinding | ≥50 | ≥12000 | P+C |
| High chrome grinding ball | ≥55 | ≥15000 | M+C |
| Super High chrome grinding ball | ≥60 | ≥22000 | M+C |
Applications of Cast Grinding Steel Balls
Cast grinding balls are widely used as grinding media in ball mills across various industries due to their hardness and abrasion resistance. Common applications include:
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Cement Industry: Used for grinding raw materials and clinker to produce cement.
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Mining Industry: Efficiently crush ores such as gold, copper, iron, and other minerals.
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Metallurgical Industry: Employed in grinding and milling operations for metal powders and slurries.
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Power Generation Industry: Used in coal and ash grinding processes for thermal power plants.
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Construction Industry: Aid in crushing and grinding construction materials for aggregate production.
These Cast Grinding Media Balls are ideal for processes requiring high hardness, wear resistance, and durability under continuous grinding conditions.
Effect of Chromium Content on Casting Grinding Balls
The chromium content in cast grinding balls significantly affects their performance and durability:
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Hardness: Higher chromium content increases the hardness of the grinding balls, enhancing their ability to crush and grind tough materials.
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Wear Resistance: As chromium content rises, the balls exhibit better wear resistance, reducing material loss during long-term milling.
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Brittleness: Excessive chromium can make the balls more brittle, increasing the risk of breakage under high-impact conditions.
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Corrosion Resistance: Chromium improves resistance to oxidation and chemical corrosion, which is especially beneficial in wet or chemically aggressive milling environments.
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Application Suitability:
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Low Chromium Ball (≤2% Cr): Suitable for general-purpose grinding with moderate wear resistance.
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Medium Chromium Ball (2–10% Cr): Balanced hardness and wear resistance, ideal for most mining and cement applications.
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High Chromium Ball (≥10% Cr): Maximum hardness and wear resistance, used in high-stress industrial grinding where long service life is critical.
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Why Choose Hexin as Your Casting Grinding Ball Supplier?
- Multiple Material Options: Low, medium, and high chrome grinding balls to suit different applications.
- Certified Quality: Complies with ISO 9001:2015 and ISO 14001:2015 standards.
- Advanced Equipment: Modern grinding ball production lines ensure high efficiency and consistency.
- Strict Quality Control: Full-process inspection guarantees stable hardness and wear resistance.
- Cost-Effective Performance: Longer service life helps reduce overall operating costs.
Hexin delivers reliable quality and efficient grinding solutions.
Package
- Using Iron drum to pack, each weight : 800kgs
- Using ton plastic bag to pack, each weight: 1ton
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