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Suizhou Gainicn Machinery is able to produce high quality grinding media with different hardness grades and chemical composition on request. Our products as follows: 
1. Forged Grinding Balls with diameters from 20mm to 180mm
2. Rolled grinding balls with diameters from 20mm to 120m.
3. High, medium, and low chrome alloyed Cast Grinding Balls with diameters from 15mm to 120mm
4. High, medium, and low chrome Cast Grinding Cylpebs
5. Grinding Rods/bars
6. Decorative Steel Balls with diameters from 15mm to 180mm
 
The specialties of our grinding ball is that High hardness, Low breakage, Good wear resistance and Low wear rate. It is mainly applied to various mines, cement plants, power stations and chemical industries.
 
Our principal production equipment and testing equipment as follows:
1. Automatic Hot Rolling Grinding Ball Production Line 2. Electric furnace for forging ball
3. Pneumatic power hammer
4. Electric furnace for casting ball
5. Heat treatment lines
6. Rockwell Hardometer
7. Impact Testing Machine
8. Chemical Composition Testing Equipment
9. Filament Cutting Machine（Wire Cut Electric Discharge Digital Control Machine Tool）

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;
5) High chrome cast grinding ball HRC60-65 ≥HRC58 Cr:11-27; C: 2.0-3.0; Si:1.0Max; Mn: 0.5-1.5;
S & P:0.10Max;
6) 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;
7) Medium chrome cast grinding ball HRC55-63 ≥HRC55 Cr:4-10; C: 2.2-3.6; Si:1.0Max; Mn: 0.5-1.5;
S & P:0.10Max;

Feature:
1) High Hardness: The surface hardness of forged and rolling balls is to 60-65 HRC and volume hardness is to 60-63 HRC
2) High Impact Toughness: The impact toughness is more than 12 J/cm2;
3) Low Broken Rate: The actual broken rate is not higher than 1%;
4) Even Wear-resistance: The loss of ball round rate is 20-300 g/ton.