Forged Steel Grinding Media Ball

Established in 2000, We Jinan Zhongwei casting and forging grinding ball Co. , Ltd,are leading manufacturer and professionalexporter of grinding media balls in China.with the annual output of 50, 000 to 80, 000 metric tons. Our products grinding mediaballs are mainly exported to more than 20 countries and regions in the world,such as Japan, Korea, South Africa, Zambia,Malaysia, Philippines, Indonesia, Mongolia, Australia, UAE, Chile etc.Our company is located in Zhangqiu city, Shandong Province,which is provided with superior geographical position andconvenient transportation.

Our main products are forging grinding steel balls,hot rolling balls,and (high,medium,low) chrome alloyed casting iron balls.casting cylpebs,grinding rods.  

Specification:

1) No deformation 
2) High hardness Good wear resistant 
3) Size:Dia20mm-150mm
4) Breakage<1%
5) Certification: ISO9001,SGS.

Grinding steel ball application : 
1) Cement Plant
2) Coal Mining, Gold Mining,Silver Mining, Copper Mining
3) power stations
4) Chemical engineering 

The production process of the forged grinding balls：

1). Raw material:
All the material is qualified with certificate and made in the Chinese largest steel production enterprise.

2). Different steel specifications ccording to the clients's requirements.
Main Steel Material :C45 Steel;60Mn Steel;B2 Steel

3). Steel Cutting:
the steel bars should be cut into small pieces according to the size of steel balls required by the order.

4). Heating:
we use the electric furnace instead of the traditional coal stove, the biggest advantage is that all the steel bars can accept the most approriate temperature during the heating progress. It affect the hardness and toughness directly.

5). Hammer forging:
The raw material is forged to a certain deformation by the air hammer, when the compression ratio increased, the micro-structure become more compact so that the hardness and the toughness can be improved.

6). Heat treatment:
Both the water quenching heat treatment production line and our own temperature control technics are important.
We have mature production technicians responsible for the heat treatment process as we know this process affect the grinding balls performance directly.

7). Quality Control.
Raw material test before production
Hardness test  Drop Test  Impact Test Core pulling Test after production
SGS test before delivery

Chemical elements:

45#
C:0.42-0.50 Mn:0.50-0.80 Si:0.17-0.37 Cr:0.25 max P: 0.035max Ni:0.25max Cu:0.25max
60Mn
C:0.55-0.65 Mn:0.7-1.0 Si:0.17-0.37 Cr:0.25max S:0.04max P:0.04max Ni:0.3max Cu:0.25max
65Mn
C:0.62-0.70 Mn:0.7-1.0 Si:0.17-0.37 Cr:0.25max S:0.035max   P:0.035max Ni:0.3max Cu:0.25max
B2
C:0.72-0.85 Mn:0.7-1.0 Si:0.17-0.37 Cr:0.4-0.6 S:0.025max   P:0.025max Ni:0.02max Cu:0.02max Mo:0.01-0.06

Packing: Container bags or steel drums or others.
For Container Bag, Net weight 1000Kgs ,Gross Weight 1002KGS ,Measurement 0.252CBM
For Steel Drums ,Net weight 850-950Kgs ,Gross Weight 865-965KGS ,Measurement 0.325CBM .

Shipping and delivery:
Port of loading:Qingdao Port,China

Delivery time : Normally 2-3 weeks after down payment received.
Partial shippment allowed

Our Advantages:

1. Jinan Zhongwei has 20 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 50,000 tons to 80,000 tons production capacity for the new cooperative partner.

4. Stable price system - 12 months price validity

5. Payment terms ( Negotiate)

Our serious promise: supplying you with high quality products, competitive prices, timely delivery, and satisfactory service. We are always insisting on the theory of "Credit Goal, Client First, and Mutual Profits". Let's build a better future.

For more information about our products ,Please feel free to contact us.