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50mm Grinding Rods For Mining

50mm Grinding Rods For Mining

  • 50mm Grinding Rods For Mining
  • 50mm Grinding Rods For Mining
  • 50mm Grinding Rods For Mining
  • 50mm Grinding Rods For Mining
50mm Grinding Rods For Mining
Product Details:
Place of Origin: Zhangqiu
Brand Name: Zhongwei
Certification: ISO SGS
Model Number: 45# 60Mn B2 B3
Payment & Shipping Terms:
Minimum Order Quantity: 1 ton
Price: Negotiable
Packaging Details: Container bags 73*60cm or Steel drums 60*90cm
Delivery Time: 5-10days
Supply Ability: 50000 Tons per year
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Detailed Product Description
Hardness: 40-60HRC Size: 50mm
Breakage: ≤1% Application: Mining Cement Power Station Chemical
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Grinding Rod


Grinding bar


50mm Grinding Rods

Basic Info
  • Model NO.: B2 B3 45# 60Mn
  • Content: >90%
  • Processing Type: Forging and Casting
  • Color: Metallic
  • Breakage Rate: 1% Max
  • Name: ISO9001:2008 Forged Grinding Ball
  • Transport Package: Steel Drun or Container Bag
  • Origin: Zhangqiu Shandong China
  • Material: Steel
  • Usage: Grind
  • Size: Dia20mm-150mm
  • Customized: Customized
  • Surface Hardness: HRC 55-65
  • Trademark: ZW
  • Specification: Dia20mm-150mm
  • HS Code: 73261100
Product Description
ISO9001:2008 forged grinding ball

Type and chemical composition of forged balls



Chemical composition

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

Dia25mm-Dia50mm Dia60mm-Dia90mm Dia90mm-Dia125mm






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



Chemical composition

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

2.0-3.2 <1.0 0.5-2.5 ≤0.06 ≤0.08 >10 58-62

2.0-3.2 <1.0 0.5-2.5 ≤0.06 ≤0.08 ≥5 50-55

2.2-3.4 ≤1.2 0.5-1.5 ≤0.06 ≤0.08 1.0-1.5 42-46

Hardness distribution

Dia25mm-Dia50mm Dia60mm-Dia70mm Dia80mm-Dia90mm







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


50mm Grinding Rods For Mining 0

ISO9001: 2008 Forged Grinding BallISO9001: 2008 Forged Grinding Ball

Advantages of Jinan Zhongwei Forged Grinding Balls
1.Electric Furnace as compared to coal
2.Fair Market Price
3.Quality guarantee
4.On time delivery

ISO9001: 2008 Forged Grinding Ball

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

Certificate: ISO 9001:2008
ISO9001: 2008 Forged Grinding Ball
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
ISO9001: 2008 Forged Grinding Ball

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

ISO9001: 2008 Forged Grinding Ball


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 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: 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 pallets

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


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. Whatsapp:+8615666669469

Contact Details
Jinan  Zhongwei  Casting And Forging Grinding Ball Co.,Ltd

Contact Person: Mr. Stevin Liu

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Address: Lejia,Puji Town,Zhangqiu Jinan city,Shandong Province,China

Factory Address:Lejia,Puji Town,Zhangqiu Jinan city,Shandong Province,China

  • Tel:86-531-83215819
  • Worktime:8:00-18:00
  • Contact Person: Mr. Stevin Liu
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