cement plant use low price forged and low chrome cast grinding
steel balls
1. Jinan Zhongwei has 16 years production and exporting experience.
2.We keep continuous adjustment and improvement in production
according to the customer’s requirement at the last 10 years.
3.On the basis of satisfied customer’s 50,000 tons/year demand,
Jinan Zhongwei has more 30,000 - 50,000 tons/year production
capacity for the new cooperative partner.
4.Stable price system - 12 months price validity
5.Payment terms ( Negotiate)
Type and chemical composition of forged balls
Name |
Material |
Chemical composition |
Hardness |
| C | Si | Mn | S | P | Cr | HRC |
forged ball | B3 | 0.58-0.66 | 1.6-1.9 | 0.65-0.8 | <0.025 | <0.025 | 0.7-0.9 | 58-63 |
| B2 | 0.72-0.85 | 0.17-0.37 | 0.7-1.0 | <0.04 | <0.04 | 0.4-0.6 | 58-63 |
| 60Mn | 0.55-0.65 | 0.17-0.37 | 0.7-1.0 | <0.04 | <0.04 | <0.25 | 58-62 |
| 45# | 0.42-0.50 | 0.17-0.37 | 0.5-0.8 | <0.035 | <0.035 | ≤0.25 | 50-55 |
Hardness distribution
Material | Dia25mm-Dia50mm
| Dia60mm-Dia90mm
| Dia90mm-Dia125mm
|
|
surface |
core |
surface |
core |
surface |
core |
| B3 | / | / | / | / | 56-63 | 45-53 |
| 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 |
Type and chemical composition of cast iron balls
Name |
Material |
Chemical composition |
Hardness |
| C | Si | Mn | S | P | Cr | HRC |
Cast ball |
Special Hi-Cr | 2.0-3.0 | <1.0 | 0.5-2.0 | ≤0.06 | ≤0.08 | >20 | 58-64 |
Special Hi-Cr | 2.0-3.0 | <1.0 | 0.5-2.0 | ≤0.06 | ≤0.08 | >15 | 58-64 |
High-Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≤0.06 | ≤0.08 | >10 | 58-62 |
Medium-Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≤0.06 | ≤0.08 | ≥5 | 50-55 |
Low-Cr | 2.2-3.4 | ≤1.2 | 0.5-1.5 | ≤0.06 | ≤0.08 | 1.0-1.5 | 42-46 |
Hardness distribution
Material | Dia25mm-Dia50mm
| Dia60mm-Dia70mm
| Dia80mm-Dia90mm
|
|
surface |
core |
surface |
core |
surface |
core |
Special hi-CR:>20 | 60-64 | 59-63 | 60-64 | 58-62 | 60-64 | 57-61 |
Special hi-CR:>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 | 50-55 | 49-54 | 50-55 | 48-53 | 50-55 | 47-52 |
Low Cr:1-1.5 | 42-46 | 41-45 | 42-46 | 40-44 | 42-46 | 39-43 |
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
Packaging & Shipping
Packing: Container bags or steel drums or others.
For Container Bag, Net weight 1000Kgs ,Gross Weight 1002KGS
,Measurement 0.4CBM
For Steel Drums ,Net weight 850-950Kgs ,Gross Weight 865-965KGS
,Measurement 0.3CBM .
Shipping and delivery
Port of loading:Qingdao Port,China
Delivery time : Normally 2-3 weeks after down payment received.
Partial shippment allowed
FAQ
Payment terms : T/T (30% DP,balance against copy of B/L.; L/C
Samples : Free samples are provided for test before trial order
MOQ : 1 Ton
Company Profile
Jinan Zhongwei Casting And Forging Grinding Ball Co.,LTd established in 2000, as a professional grinding media manufacturer, we are devote to development and production wear-resistant steel balls for ball mill. Main products: Forged
Steel Ball, Cast Steel Ball (High, Medium, Low Chrome), Casting
Cylpebs, Grinding Rods.
We have obtained ISO 9001:2008 International Quality System
Authentication. To ensure the excellent performance of grinding
balls, our company have advance quality control and test
equipments, and complete quality inspection system.
Strength casting high quality goods and good faith forging
magnificent. Our aim is to insist on the theory of "Quality first, Honesty and Trust Bring Mutual Benefits". We are trying best to supply customers from both at home and abroad with high quality products and
satisfactory service.
For more information about our products ,Pls feel free to contact
us.
eileen@zwgrindingball.com
+86-156 5001 6516
