Low crushing mining ball mill high chrome cast steel grinding ball
Material: High Chrome Cast Steel
Diameter Range: 20mm, 25mm, 30mm, …, 150mm,160mm
Hardness (HRC): Core: ≥55; Surface: 58-65
Times of Falling Balls: ≥15000
Machine Type: Ball Mills
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High Chrome Cast Steel Grinding Balls for Mining Ball Mills – Low Crushing Rate
Engineered to deliver superior performance in harsh mining environments, our Low Crushing Mining Ball Mill High Chrome Cast Steel Grinding Balls are the ideal choice for optimizing grinding efficiency and reducing operational costs. Crafted with precision using high-quality alloy materials, these grinding balls set the standard for durability, wear resistance, and consistent performance in ball mill applications.

Key Features & Advantages
1. Exceptional Wear Resistance
Manufactured from high chrome cast steel (typically containing 12-30% chromium), our grinding balls exhibit outstanding resistance to abrasion, ensuring a longer service life compared to standard carbon steel or low-alloy alternatives. The high chromium content forms a tough carbide structure that effectively withstands the intense friction and impact forces in mineral grinding processes, making them perfect for processing hard ores such as quartz, iron ore, gold, and copper.
2. Low Crushing Rate
Designed with a precise chemical composition and heat treatment process, these balls feature excellent impact toughness (≥10 J/cm²) and uniform hardness (HRC 58-65 across the entire ball), minimizing the risk of fragmentation during operation. The low crushing rate not only reduces material waste but also maintains consistent ball size distribution in the mill, ensuring stable grinding efficiency and fewer interruptions for ball replacement.
3. Strict Quality Control
- Chemical Composition: Meticulously controlled to meet international standards (C: 2.0-3.6%, Cr: 12-30%, Mn: 0.5-2.0%, Si: 0.3-1.2%, P≤0.06%, S≤0.06%), ensuring uniform mechanical properties.
- Heat Treatment: Through a rigorous quenching and tempering process, we achieve a fine-grained microstructure that balances hardness and toughness, eliminating internal stress and improving overall reliability.
- Dimension Accuracy: Manufactured with tight tolerances (diameter: 20mm-150mm, tolerance: ±1%), our balls provide consistent filling rates and optimal grinding media dynamics in both wet and dry milling operations.
4. Wide Application Range
Suitable for various ball mill types (overflow, grid discharge, autogenous, and semi-autogenous mills), these grinding balls are widely used in:
- Mineral processing plants (gold, silver, copper, iron, lead-zinc, etc.)
- Cement production
- Construction aggregate processing
- Industrial waste recycling

Technical Specifications
| Property | Value |
| Material | High Chrome Cast Steel (ASTM A532 Type III Class A) |
| Hardness (HRC) | Core: ≥55; Surface: 58-65 |
| Impact Toughness | ≥10 J/cm² |
| Density | 7.85 g/cm³ |
| Diameter Range | 20mm, 25mm, 30mm, …, 150mm |
| Surface Finish | Smooth, oxide-free |
| Customization | Available for special sizes and markings |
| (mm) Ball Diameter | (kg) Weight of Each Ball | Pcs/Ton |
|---|---|---|
| Φ20 | 0.0322 | 31056 |
| Φ25 | 0.063 | 15873 |
| Φ30 | 0.11 | 9091 |
| Φ40 | 0.257 | 3891 |
| Φ50 | 0.5 | 2000 |
| Φ60 | 0.867 | 1153 |
| Φ70 | 1.37 | 729 |
| Φ80 | 2.05 | 487 |
| Φ90 | 2.9 | 345 |
| Φ100 | 4 | 250 |
| Φ110 | 5.3 | 188 |
| Φ120 | 6.8 | 147 |
| Φ125 | 7.75 | 129 |
| Φ130 | 8.74 | 114 |
| Φ160 | 13.5 | 74 |
Why Choose Our Grinding Balls?
✅ Cost-Effective: Longer service life and lower replacement frequency reduce total cost of ownership.
✅ Reliable Performance: Engineered to maintain grinding efficiency even under high-load, high-temperature conditions.
✅ Global Compliance: Meet or exceed international standards (ISO 9001, SGS, etc.) for quality and safety.
✅ Dedicated Support: Professional team provides technical guidance for optimal ball mill charge configuration.
Partner with Us for Your Grinding Needs
As a leading manufacturer of wear-resistant mining equipment, we combine advanced casting technology with decades of industry experience to deliver products that enhance your production efficiency. Whether you need standard sizes or custom-engineered solutions, our high chrome cast steel grinding balls are designed to perform in the most demanding mining environments.
Contact Us Today for a detailed quotation or technical datasheet. Let us help you maximize your ball mill performance while minimizing operational costs!
FAQ
A: We are a high-quality manufacturer of wear-resistant parts for mining machinery and engineering machinery accessories in china.
A:Telegraphictransfer: 30% before shipment,balance payable against copy of bill of lading.L/C:sightL/C,30-dayL/C,60-dayL/C.
Main Products:
Owns abundant experience skilled technology in producing Ductile iron,high manganese steel, high chromium cast iron, alloy steel, carbon steel, heat-resistant steel and other castings. Products widely used in mining, cement, metallurgical, construction, metal recycling, engineering and other aggregate industries.(Mining wheels, mining axles, mining car connection buffers, crusher accessories, bucket teeth, mining grinding balls, wear-resistant castings, ductile iron castings, bearing boxes, mining crane pulley, mining chain, machining parts, etc.)
A:We provide pre-sale service,in-sale service and after-sales service,and always pursue long-term development and win-win
cooperation with you,adhering to the principle of customer first.












