ISO9001:2008 forged grinding ballType and chemical composition of forged balls Hardness distribution
|45#||0.42-0.50||0.17-0.37||0.5-0.8||<0.035||<0.035||≤0.25||50-55|Type and chemical composition of cast iron balls
Advantages of Jinan Zhongwei Forged Grinding Balls
1.Electric Furnace as compared to coal
2.Fair Market Price
4.On time delivery
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
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.
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
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
7). Quality Control.
Raw material test before production
Hardness test Drop Test Impact Test Core pulling Test after
SGS test before delivery
Certificate: ISO 9001:2008
Packaging & Shipping
Packing: Container bags or steel drums or others.
For Container Bag, Net weight 1000Kgs ,Gross Weight 1002KGS
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
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
1. Can you provide samples for free?
Answer: Yes, we glad to provide free samples.
2. Are you a manufacturer or a trading company?
Answer: We are a manufacturer, and we have independent export
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: We will reply to you asap.If we cannot not, we will tell.
6. How about your packing?
Answer:Container bags & Steel drum with wooden pallets or iron
7. Do you have any certificate ?
Answer : We have obtained ISO9001:2008, and now we have accpeted
SGS and BV inspection,according to the customer's need, we can
accpet any third party test.
8. How about your strength?
Answer: We are a professional manufacturer of forged steel balls
and cast balls, with about 16 years’ experience in this field . Our
products are widely welcome by the domestic and foreign customers.
9.How about your delivery time? (25 tons)
Forged balls : 7-10 days after deposit
Cast balls : 10-15 days
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
For more information about our products ,Pls feel free to contact