High hardness and good wear resistance forged and cast grinding
balls for mining
Company Profile
Jinan Zhongwei established in 2000 , we are a leading manufacturer
and professional exporter grinding balls in China.
Our company covers an area of 15000 square meters, now we have 150
staff, including 13 technical staff. Annual output is 50000 tons to
80000 tons .
Main products : forged steel ball, cast iron ball ,grinding rod,
cylpebs
We have exported to 20 more countries, UAE, Zambia,South Africa,
Peru, Chile, Australia, UK, USA, Turkey and so on.
Forged ball chemical and hardness:
| Material | Chemical elements |
| C | Si | Mn | P/S | Cr |
| B2 | 0.72-0.85 | 0.17-0.37 | 0.7-1.0 | ＜0.04 | 0.4-0.6 |
| 60Mn | 0.55-0.65 | 0.17-0.37 | 0.7-1.0 | ＜0.04 | ＜0.25 |
| 45# | 0.42-0.50 | 0.17-0.37 | 0.5-0.8 | ＜0.035 | ≤0.25 |
| B3 | 0.58-0.66 | 1.6-1.9 | 0.65-0.8 | ＜0.025 | 0.7-0.9 |
Material
|
25mm-50mm HRC |
60mm-90mm HRC |
100mm-125mm HRC
|
| Surface | Core | Surface | Core | Surface | Core |
| B2 | 60-65 | 58-62 | 58-63 | 50-55 | 56-60 | 40-45 |
| 60Mn | 58-63 | 55-60 | 58-63 | 40-45 | 56-60 | 30-35 |
| 45# | 55-58 | 45-55 | 55-58 | 30-35 | 50-55 | 25-30 |
| B3 | | | 60-65 | 58-63 | 58-62 | 56-60 |
Cast Iron Ball chemical and hardness:
Material | 25mm-50mm HRC | 60mm-70mm HRC | 80mm-90mm HRC |
|
| Surface | Core | Surface | Core | Surface | Core |
| Special Cr1:＞20 | 60-64 | 59-63 | 60-64 | 58-62 | 60-64 | 57-61 |
| Special Cr2:＞15 | 58-62 | 57-61 | 58-62 | 56-60 | 58-62 | 50-59 |
| High Cr:＞10 | 58-62 | 57-61 | 58-62 | 56-60 | 58-62 | 50-59 |
| Medium Cr:≥5 | 45-48 | 44-47 | 45-48 | 43-46 | 45-48 | 42-45 |
| Low Cr:1-1.5 | 42-46 | 41-45 | 42-46 | 40-44 | 42-46 | 39-43 |
Our Advantages
1.Jinan Zhongwei has 16 years production experience and complete
purchasing ,testing,service system ,
2.We keep continuous adjustment and improvement according to the
customer’s requirement at the last 10 years.
3.On the basis of satisfied customer’s 50,000 tons demand, Jinan
Zhongwei has more 30,000 tons to 50,000 tons production capacity
for the new cooperative partner.
4.Stable price system - 12 months price validity
5.Payment terms ( Negotiate)
Packing
Steel drum (800-950kg per drum) &Container Bag (1000kg per bag)
FAQ
Can you provide samples for free?
Answer: Yes, Free Sample.
2. Are you a manufacturer or a trading company?
Answer: We are a manufacturer, and we have independent export
qualification.
3. What kind of payment you can accept?
Answer: T/T , L/C, Paypal,Western Union
4. How about your quality control?
Answer: 100% check before delivery to ensure the products quality.
5. If I send an inquiry ,when can you reply ?
Answer: Immediately.
6. How about your packing?
Answer:Container bags & Steel drum with wooden pallets or iron
pallets
7. Do you have any certificate ?
Answer : ISO9001:2008, SGS and BV inspection or any third party
test.
8. How about your delivery time? (25 tons)
Forged balls : 3-5 days after deposit
Cast balls : 5-7 days
