Ball mill grinding balls are generally divided into four categories according to different manufacturing processes. Four types of steel balls have their advantages and disadvantages. According to the user's use habits, our company can provide relevant consultation services free of charge. The company customizes steel balls for ball mills according to customers' need. The common materials and models are in reasonable stock and can be shipped two trucks at any time for emergencies.
| Air hammer forging steel ball | |||||
| Ball Mill Balls | Hot rolled steel ball | Automatic spinning hot-rolled steel balls | |||
| Hot roll forging of large diameter steel balls | |||||
| Casting grinding ball | Low chromium alloy ball | ||||
| Medium chromium ball | |||||
| High chromium alloy ball | |||||
| Super high chromium ball | |||||
| Multicomponent alloy ball | |||||
| Bearing disassembly grinding ball | Bearing disassembly ball | ||||
| Dismantling Bearing Steel Section |
二、 Rainbow Ball Mill Steel Balls Productivity Table
| Name | Model range | Capacity | Material | Note |
| Air hammer forging of steel balls and sections |
φ20---160mm φ20*25-50*60mm |
Annual capacity of 50,000 tons | HM1/HM2/HM20 More than ten kinds of materials can be choose | Please refer to the related product introduction page for the physical and chemical indicators of various materials. Call or email if needed. The production capacity of the production line is fully loaded, and is actually arranged according to the order situation. |
| Hot-rolled steel balls and sections |
φ15---150mm φ20*25-50*60mm |
Annual capacity of 100,000 tons | HM1/HM2/HM20 More than ten kinds of materials can be choose | |
| Casting grinding ball |
φ15mm---150mm φ14*14—φ50*60mm |
Annual capacity of 50,000 tons | Low chromium, medium chromium, high chromium, multi-element alloys, etc. | |
| Bearing disassembly ball |
φ10mm---80mm φ10*15---φ50*60 |
Annual capacity of 10,000 tons | Bearing steel, GCr15, etc. |
三、Rainbow Ball Mill Balls Material No and Chemical Composition Table
1、Forging and hot rolling steel balls
| Material No | Balls model（mm） | Chemical composition | Mechanical properties | |||||||
| C | MN | CR | S | P | SI | Surface hardness（HRC） | impact toughness | Crusher rate | ||
| LB-1 | φ20-150 | 0.6-0.8 | 0.8-1.2 | ≤0.25 | ≤0.035 | ≤0.035 | 0.17-0.37 | 58-65 | ＞12 j/cm² | ＜0.5% |
| LB-2 | φ30-100 | 0.7-0.9 | 0.7-0.8 | 0.3-0.9 | ≤0.025 | ≤0.013 | 0.17-0.37 | 55-65 | ＞12 j/cm² | ＜0.8% |
| LB-3 | φ90-140 | 0.6-0.8 | 0.6-0.8 | 0.7-0.9 | ≤0.03 | ≤0.03 | 1.6-1.9 | 58-65 | ＞12 j/cm² | ＜0.8% |
| LB-4 | φ60-150 | 0.9-1.2 | 0.2-0.4 | 1.2-1.8 | ≤0.025 | ≤0.027 | 0.15-0.35 | 55-60 | ＞10 j/cm² | ＜1% |
| LB-5 | φ20-150 | 0.4-0.6 | 0.5-0.8 | 0.9-1.2 | ≤0.035 | ≤0.035 | 0.17-0.37 | 55-65 | ＞12 j/cm² | ＜0.5% |
| LB-6 | φ80-150 | 0.7-0.9 | 0.8-1.2 | 0.7-1.2 | ≤0.03 | ≤0.03 | 0.1-0.4 | 58-65 | ＞10 j/cm² | ＜1% |
| LB-7 | φ80-150 | 0.9-1.1 | 0.9-1.2 | 0.4-0.8 | ≤0.03 | ≤0.03 | 0.2-0.3 | 58-65 | ＞10 j/cm² | ＜1% |
| LB-18 | φ30-125 | 0.7-0.9 | 0.7-1.2 | ≤0.25 | ≤0.035 | ≤0.035 | 0.17-0.37 | 55-65 | ＞10 j/cm² | ＜1% |
| LB-20 | φ50-130 | 0.8-1.1 | 0.7-0.9 | ≤0.25 | ≤0.035 | ≤0.035 | 0.17-0.37 | 55-65 | ＞10 j/cm² | ＜1% |
| Note | Support OEM or customize special ingredient steel balls according to customer requirements. The hardness of small straight D steel ball is higher than that of large diameter steel ball. If the hardness range is required, it can be adjusted by heat treatment process. | |||||||||
2、Casting grinding ball
| Ball No | Chemical composition | Casting ball specification mm | Casting specification mm | ||||||||
| c | Si | Mn | Cr | Mo | Cu | Ni | P | S | |||
| LBCr26 | 2.0-3.5 | ≤1.2 | 0.3-1.5 | 23-30 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 | ￠17-￠150 | ￠14*14--￠50*60 |
| LBCr20 | 2.0-3.5 | ≤1.2 | 0.3-1.5 | 18-23 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 | ||
| LBCr15 | 2.0-3.5 | ≤1.2 | 0.3-1.5 | 14-18 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 | ||
| LBCr10 | 2.0-3.5 | ≤1.2 | 0.3-1.5 | 10-14 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 | ||
| LBCr8 | 2.0-3.5 | ≤1.2 | 0.3-1.5 | 7-9 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 | ||
| LBCr5 | 2.0-3.5 | ≤1.2 | 0.3-1.5 | 5-8 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 | ||
| LBCr2 | 2.0-3.5 | ≤1.2 | 0.3-1.5 | 1-3 | 0-3.0 | 0-1.2 | 0-1.5 | ≤0.10 | ≤0.06 | ||
| Note | Support OEM or customize special ingredient steel balls according to customer requirements. The hardness of small straight D steel ball is higher than that of large diameter steel ball. If the hardness range is required, it can be adjusted by heat treatment process. | ||||||||||
四、Ball Mill Balls Physical Parameters
|
NOMINAL DLAMETER (mm) (ins) |
THEORETICALDA METER (mm) |
APPROX.MASS PER BALL (g) |
AVERAGE NUMBER OF BALLS PER MT |
|
| 20 | 3/4 | 20.8 | 37 | 27000 |
| 25 | 1 | 26 | 72 | 13900 |
| 30 | 1¼ | 31.2 | 125 | 8000 |
| 40 | 1½ | 41.6 | 396 | 3380 |
| 50 | 2 | 52 | 578 | 1730 |
| 60 | 2½ | 62.4 | 999 | 1000 |
| 70 | 2¾ | 67.6 | 1270 | 790 |
| 75 | 3 | 78 | 1951 | 510 |
| 90 | 3½ | 88.4 | 2839 | 350 |
| 95 | 3¾ | 93.6 | 3371 | 290 |
| 100 | 4 | 98.8 | 3964 | 250 |
| 115 | 4½ | 114.4 | 6154 | 162 |
| 120 | 4¾ | 119.6 | 7032 | 142 |
| 125 | 5 | 124.8 | 7989 | 125 |
| 135 | 5¼ | 135.2 | 10158 | 98 |
| 140 | 5½ | 140.4 | 11375 | 88 |
五、 Forged Steel Ball Packaging
Usually, four kinds of packing methods are used, ton bag, barrel, ton bag + wooden bracket, barrel + wooden bracket.
六、Conclusion
Our company has been manufacturing and exporting ball mill steel balls for many years. We have rich experience in production, inspection, transportation and export. We are willing to base our long-term cooperation on high-quality products, timely shipment and delivery, competitive prices and satisfactory services. Our goal is to be a professional supplier of high-quality wear-resistant consumables for mines in China.
七、Physical pictures
