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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China factory Cast iron balls and Grinding balls for ball mill
Grinding Balls For Ball Mill Chemical Elements( Below is common used type all over the world,if you have any other different requirement, please let me know,we can order from steel mill)
Forged Steel Balls
| Material | Chemical Elements | ||||
| C | Si | Mn | P/S | Cr | |
| 45# | 0.42-0.50 | 0.17-0.37 | 0.5-0.8 | <0.035 | <0.25 |
| 60MN | 0.55-0.65 | 0.17-0.37 | 0.7-1.0 | <0.04 | <0.25 |
| B2 | 0.72-0.85 | 0.17-0.37 | 0.7-1.0 | <0.04 | 0.4-0.6 |
| B3 | 0.5-0.8 | 1.0-1.8 | 0.4-1.0 | 0.035 | 0.5-1.0 |
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 |
| Nominal Diameter(mm) | Dimensional Tolerance(mm) | Roundness % |
| Φ20 | ±2 | ≤6 |
| Φ25 | ±2 | ≤6 |
| Φ30 | ±2 | ≤5 |
| Φ35 | ±2 | ≤5 |
| Φ40 | ±2 | ≤5 |
| Φ50 | +3,-1 | ≤4 |
| Φ60 | +3,-1 | ≤4 |
| Φ70 | +3,-1 | ≤4 |
| Φ75 | +3,-1 | ≤4 |
| Φ80 | +3,-1 | ≤4 |
| Φ90 | +4,-2 | ≤4 |
| Φ100 | +4,-2 | ≤4 |
| Φ120 | +4,-2 | ≤4 |
| Φ125 | +4,-2 | ≤4 |
| Φ130 | + 4,-2 | ≤4 |
| Φ140 | +4,-2 | ≤4 |
| Φ150 | +4,-2 |
Jinan zhongwei company:
It is 50 KM to the east of Jinan Airport , in north of the 309 National Highway and it's 300 kilometer from Qingdao port! The company covers an area of 15000 Square Meters!
The factory had a total of 100 people ( it includes 10 engineering and technical personnel, 20 sales which consists of domestic sales and export sales, 10 administrative staff, 10 logistics service personnel and 50 production workers). The capacity of production is 50000 Metric Tons per year.
Certification and Patent :
Our company has obtained ISO 9001 International Quality System Authentication, ISO14001 Environmental System Management Authentication and ISO18001 occupational health and safety certification, safety standardization identification, clean production enterprise certification.
Cooperative Partner:
We export our products 80% into the foreign market, and keep close cooperation with many large companies at home and abroad.
Credibility:
Our company has won the "Shandong Province Famous Brand", "Shandong Famous Trademark" ,"Leading Forged Steel Ball Manufacturer in China ", "High-tech Enterprise "and "Contract Abiding and Promise Keeping Enterprise",etc.
