Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd
Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd 18 Years focus on development and production of grinding media Casting quality with strength, Forging glory with integrity
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Manufacturer: Jinan Zhongwei Casting And Forging Grinding Ball Co.,Ltd
Why Jinan Zhongwei ?
1 . Over 15 years Professional forging and casting grinding balls, grinding cylpebs manufacturing experience, deserves your trust.
2 . High quality, competitive price and good service benefit our customers.
3 . ISO9001 certified company, advanced oil quenching and heating production line, together with advanced testing machines imported from Germany are used to ensure the quality.
4 . Chemical analysis reports would be sent together with each batch of grinding balls, even samples.
5 . Skilled sales & service team can provide timely good service.
6 . 50000 Tons annual production capacity can provide short Leading time.
Product Name: cast iron balls
Product Type : Low Chromium, Medium Chromium, High Chromium ,Special High Chromium
The chemical composition of the cast iron balls
| Material | Chemical Elements | |||||
| C | Si | Mn | P | S | Cr | |
| Speical Cr 2 | 2.0-3.0 | < 1.0 | 0.5-2.0 | <0.08 | < 0.06 | > 20 |
| Speical Cr 1 | 2.0-3.0 | < 1.0 | 0.5-2.0 | <0.08 | < 0.06 | > 15 |
| High Cr | 2.0-3.2 | < 1.0 | 0.5-2.5 | <0.08 | < 0.06 | > 10 |
| Medium Cr | 2.0-3.2 | < 1.0 | 0.5-2.5 | <0.08 | < 0.06 | > 5 |
| Low Cr | 2.2-3.4 | < 1.2 | 0.5-1.5 | <0.08 | < 0.06 | 1.0-1.5 |
We can also manufacture the product with special chemical composition in accordance with the requirements
of the customers.
Cast Iron Ball Hardness
| Material | 25mm-50mm HRC | 60mm-70mm HRC |
80mm-90mm HRC
| |||
| 60-64 | ||||||
| Speical Cr 2 | 58-62 | 60-64 | ||||
| Speical Cr 1 | 58-62 | 58-62 | 58-62 | |||
| High Cr | 58-62 | 58-63 | 58-62 | |||
| Medium Cr | 45-48 | 45-48 | 45-48 | |||
| Low Cr | 42-46 | 42-46 | 42-46 | |||
Diameter, Diametrical tolerance, Weight, Impact toughness of cast iron ball
| Nominal diameter (mm) | Diametrical tolerance (mm) | Weight of Single of grinding ball in average | Number of piece of One ton grinding ball in average | Impact toughness |
| DIA 20MM DIA 25 MM DIA 30 MM DIA 40 MM DIA 50 MM | +2 -1 | 32 64 110 263 513 | 31250 15625 9090 3802 1949 | ≥12 |
| DIA 60 MM DIA 70 MM DIA 80 MM DIA 90 MM DIA 100 MM | +3 -2 | 888 1410 2104 2996 4110
| 1126 709 475 333 243 | |
| DIA 110 MM DIA 120MM DIA 130 MM | +4 -2 | 5457 7102 9030 | 182 140 110 | |
| DIA 140 MM DIA 150 MM | +4 -3 | 11278 13871 | 88 72 |
Production Process of Jinan Zhongwei Cast Iron Balls
