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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Steel ball grinding balls for mining used in ball mill forged and cast balls
Jinan zhongwei is one of the largest factory specialized in producing Forging Grinding Media Ball, Hot Rolling Grinding Media Ball , Casting Grinding Media Ball Grinidng rods and Grinding Cylpebs in China. It was founded in 2000, located in Zhangqiu City, Shandong Province, China. Annual Production Capacity is 50,000 metric ton. There are 180 employees, covering an area of 15,000 square meters. Our products have been exported to more than 20 countries and got a lot of praise. We have large-scale production workshop, advanced production equipment and perfect quality assurance system. Our company has passed ISO9001:2000 quality system authentication and we always keep sincere service promise.
1. Features of forging and casting grinding media balls:
1). Even high hardness
2). Good wear-resistance
3). Unbreakable
4). High impact value
5). Production Capacity: 50,000mt per year
6). Low price
2. Applied fields of forged grinding balls:
a) Mines; b) Cement plants; c) Power stations; d) Chemical industry
3. Raw Materials:
B2; B3; B4; 60Mn; Chrome Iron
4. Specifications of our products as follows:
| PRODUCTS | SURFACE HARDNESS | CORE HARDNESS | CHEMICAL COMPOSITION |
| 1) 60Mn Forged grinding ball | HRC58-65 | ≥HRC44 | C: 0.52-0.65; Si: 0.15-0.37; Mn: 0.6-1.2; S & P: 0.04Max; Cr: 0.25Max |
| 2) B2 Forged grinding ball | HRC60-68 | ≥HRC55 | C: 0.75-0.90; Si:0.17-0.37; Mn:0.7-0.9; P: 0.035 MAX; S: 0.035MAX; Cr:0.40-0.70. |
| 3) B3 Forged grinding ball | HRC60-68 | ≥HRC55 | C:0.55-0.65; Si:0.2-0.37; Mn:0.75-0.9; Cr:0.85-1.2;S/P≤0.03; |
| 4) B4 Forged grinding ball | HRC60-68 | ≥HRC58 | C:0.58-0.66; Si:1.6-1.9; Mn:0.65-0.80; Cr:0.7-0.9; S/P≤0.03; |
| 3) High chrome cast grinding ball | HRC58-65 | ≥HRC55 | Cr:11-27; C: 2.0-3.0; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max; |
| 4) Low chrome cast grinding ball | HRC48-55 | ≥HRC46 | Cr:1-3; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max; |
| 5) Medium chrome cast grinding ball | HRC50-60 | ≥HRC48 | Cr:4-10; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5; S & P:0.10Max; |
5. Diameter, Diametrical tolerance, Weight, Impact toughness of forged grinding balls
| 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 20 DIA 25 DIA 30 DIA 40 DIA 50 |
+2 -1 | 32 64 110 263 513 | 31250 15625 9090 3802 1949 | ≥12 |
| DIA 60 DIA 70 DIA 80 DIA 90 DIA 100 |
+3 -2 | 888 1410 2104 2996 4110
| 1126 709 475 333 243 | |
| DIA 110 DIA 120 DIA 130 | +4 -2 | 5457 7102 9030 | 182 140 110 | |
| DIA 140 DIA 150 | +4 -3 | 11278 13871 | 88 72 |
6. Package:
Steel drums (850kg per drum) or Flexible Container Bags ( 1000kg per bag)
Grinding Balls For Mining Package ( Container bags and steel drums are two common used package all over the world,let me know which one you want.)
