- AGICO welcomes you to bring sample materials to the factory for a free grinding test, on-site watch the grinding process, and feel the granularity of the finished product more intuitively.
Grinding Media
Grinding media is a kind of carrier used in ball mill, cement mill, mineral mill and other equipment to help grind materials. Commonly used grinding media are steel grinding balls, grinding cylpebs, and steel grinding rods. The materials for making such grinding media are mostly cast iron alloys, alloy round steels, etc. that have been specially processed.
Steel Grinding Balls
1. Cast grinding balls
- Chromium content: 1% – 28%
- Hardness: HRC40-60
- Diameter: 10mm-150mm
- Features: after heat treatment, it has high hardness, grinding resistance and no loss of roundness
- Application: cast grinding balls are widely used in ball mill grinding systems in mining, cement, building materials, chemical industry and other fields.
| Name | Grade | Surface hardness(HRC) | Bulk hardness(HRC) | Impact value(Ak:J/cm2) | Metallographic structure | Falling Ball Impact Fatigue Life (height 3.5 meters) | |
|---|---|---|---|---|---|---|---|
| Low Chromium Grinding Balls (LCCB) | ZQCR1, ZQCR2, ZQCR3 | 45-50 | 45-49 | ≥1.5 | P+C | 80≤φ≤150 | 8000 |
| ZQCR0 | 40-45 | 40-44 | ≥1.2 | P+C | |||
| P-Pearlite, C-Carbide | |||||||
| High Chromium Grinding Steel Balls | ZQCR10-ZQCR12 | 58-63 | 58-62 | ≥3 | M+C | 80≤φ≤150 | 10000 |
| ZQCR13-ZQCR16 | 59-64 | 59-63 | |||||
| ZQRC17-ZQCR19 | 60-65 | 60-64 | |||||
| M-Martensite, C-Carbide | |||||||
2. Forged grinding balls
- Carbon content: 0.38% – 1.05%
- Hardness: HRC48-65
- Diameter: 10mm-150mm
- Features: after quenching, it has high hardness, abrasion resistance and low damage rate
- Application: forged grinding balls are widely used in ball mills and SAG grinding mill systems in mining, building materials, chemical industry and other fields.
| Grade | Model(mm) | Surface hardness(HRC) | Inner hardness(HRC) | Bulk hardness(HRC) | Impact value(Ak:J/cm2) | Metallographic structure | Falling Ball Impact Fatigue Life (height 3.5 meters) | |
|---|---|---|---|---|---|---|---|---|
| SGFB-3 | ||||||||
| φ40-φ50 | 60-65 | 59-64 | 60-65 | ≥13 | M+B+C | 80≤φ≤150 | ≥10000 | |
| φ60-φ80 | 60-65 | 58-63 | 60-65 | |||||
| φ90 | 59-64 | 59-63 | 59-63 | |||||
| φ100-φ120 | 53-58 | 47-52 | 50-55 | |||||
| φ125-φ130 | 51-56 | 45-50 | 47-52 | |||||
| φ140-φ150 | 48-53 | 40-45 | 45-50 | |||||
| M-Martensite, C-Carbide | ||||||||
Grinding Cylpebs
1. Cast grinding cylpebs
- Chromium content: 1% – 28%
- Hardness: HRC40-65
- Specifications: φ10mm×H12mm – φ50mm×H60mm
- Application: cast grinding cylpebs are widely used in ball mill grinding systems in cement, building materials, thermal power plants and other fields.
| Name | Grade | Surface hardness(HRC) | Bulk hardness(HRC) | Impact value(Ak:J/cm2) | Metallographic structure |
|---|---|---|---|---|---|
| Low chromium cast grinding cylpebs | ZQCR1-ZQCR3 | 45-50 | 45-49 | ≥1.5 | P+C |
| ZQCR0 | 40-45 | 40-44 | |||
| P-Pearlite, C-Carbide | |||||
2. Forged grinding cylpebs
- Carbon content: 0.35% – 0.70%
- Hardness: HRC45-62
- Specifications: φ20mm×H25mm – φ50mm×H60mm
- Application: forged grinding cylpebs are commonly used for grinding non-ferrous metal ores such as gold and copper mines, as well as coal mills in power plants and grinding in cement industry.
| Name | Grade | Surface hardness(HRC) | Impact value(Ak:J/cm2) | Metallographic structure |
|---|---|---|---|---|
| Forged grinding cylpebs | SGFC=1 | 50-60 | ≥11 | M+B+C |
| M-Martensite, B-Bainite, P-Pearlite, C-Carbide | ||||
Grinding Rods
1. High manganese steel wear resistant grinding rods
- Carbon content: 0.45% – 0.70%
- Diameter: 40mm-120mm
- Features: after quenching and tempering, it has the characteristics of high hardness, good toughness, grinding resistance and continuous rod
- Application field: high manganese steel rod is used in the grinding of rod mills such as silver ore, bauxite, quartz placer and building materials.
2. Alloy steel wear resistant grinding rods
- Carbon content: 0.37% – 1.05%
- Diameter: 40mm-120mm
- Length: 2m-6m
- Features: after quenching and quenching and tempering, the hardness and wear resistance of the product match scientifically
- Application: alloy steel rods are widely used in the grinding of rod mills such as copper, gold, lead-zinc and quartz placers.
