Our products advantages
We are a manufacturer specializing in the production of forged steel ball, grinding rods, grinding cylpebs and casting balls for Mining industry and cement plants, our 95% products export more than 30 countries. We have more than 30 years production experience and has passed TUV, ISO, SGS etc. certificated qualification and extreme standard, these let us keep very competitive in the current market. Our grinding media ball has good surface quality, high impact value, strong toughness, good wear resistance, and low ball breaken rate.
Grinding media ball Info
Product Name: Grinding media ball
grinding ball diameter: Φ 20mm - Φ 150mm
Material Grad : 45#, 50Mn, 60Mn, 65Mn, B2, B3, BL, BG
Certification: TUV ISO9001, SGS
Hardness: HRC55-66 Breakage rate: <1%
Application Areas: Mines, Cement Plant, Power Station, Chemical Industry
Grinding media Ball Classification and Chemical Composition
| Name | C | Mn | Si | S | P | Cr |
| SY-01-45# | 0.42-0.48 | 0.50-0.80 | 0.17-0.37 | 0.05max | 0.05max | 0.15max |
| SY-02-50Mn | 0.48-0.56 | 0.65-1.00 | 0.17-0.37 | 0.05max | 0.05max | 0.15max |
| SY-03-60Mn | 0.57-0.65 | 0.70-1.10 | 0.17-0.37 | 0.05max | 0.05max | 0.25max |
| SY-04-65Mn | 0.62-0.75 | 0.90-1.20 | 0.17-0.37 | 0.05max | 0.05max | 0.25max |
| SY-05-B2 | 0.75-0.85 | 0.70-0.90 | 0.17-0.35 | 0.05max | 0.05max | 0.40-0.60 |
| SY-06-B3 | 0.50-0.65 | 0.40-1.00 | 1.35-1.85 | 0.05max | 0.05max | 0.80-1.20 |
| SY-07-BL | 0.55-0.75 | 0.65-0.85 | 0.15-0.35 | 0.05max | 0.05max | 0.70-1.20 |
| SY-08-BG | 0.90-1.05 | 0.35-0.95 | 0.15-0.35 | 0.05max | 0.05max | 1.0-1.70 |
Grinding media Ball Mechanical Propety
| Name | Impact Value AK.J/cm2 | Dropping test(sm) |
Hardness | |||||
| Ф25-50(1"-2") | Ф60-90(2.5"-3.5") | Ф100-150(4"-6") | ||||||
| Surface | Core | Surface | Core | Surface | Core | |||
| SY-01-45# | ≥12 | ≥15000 | ≥55 | ≥38 | ≥50 | ≥35 | ≥45 | ≥25 |
| SY-02-50Mn | ≥12 | ≥15000 | ≥56 | ≥40 | ≥56 | ≥35 | ≥50 | ≥30 |
| SY-03-60Mn | ≥12 | ≥15000 | ≥58 | ≥45 | ≥58 | ≥38 | ≥52 | ≥35 |
| SY-04-65Mn | ≥12 | ≥15000 | ≥60 | ≥52 | ≥60 | ≥42 | ≥53 | ≥36 |
| SY-05-B2 | ≥12 | ≥15000 | ≥60 | ≥60 | ≥60 | ≥54 | ≥55 | ≥48 |
| SY-06-B3 | ≥12 | ≥15000 | ≥60 | ≥60 | ≥60 | ≥54 | ≥58 | ≥53 |
| SY-07-BL | ≥12 | ≥15000 | ≥60 | ≥60 | ≥60 | ≥54 | ≥58 | ≥55 |
| SY-08-BG | ≥12 | ≥15000 | ≥60 | ≥60 | ≥60 | ≥60 | ≥60 | ≥60 |
Grinding media ball date
| Nominal Diameter (mm) | Theoretical Diameter | Weight per ball(KG) | Average Number Of Balls per MT | Diametrical Tolerance(mm) |
| 25 (1") | 26 | 72 | 13,900 | +2.5 -1.0 |
| 30 (1.25") | 31.2 | 125 | 8,000 | |
| 40 (1.5") | 41.6 | 296 | 3,980 | +1.5 -1.0 |
| 50 (2") | 52.0 | 578 | 7,730 | |
| 60 (2.5") | 62.4 | 999 | 1,000 | +3.0 -1.5 |
| 65 | 67.6 | 1.270 | 790 | |
| 70 (2.75") | 72.8 | 1.586 | 630 | |
| 80 (3.25") | 83.2 | 2.367 | 420 | |
| 90 (3.75") | 93.6 | 3.371 | 300 | +4.0 -2.0 |
| 100 (4") | 98.8 | 3.964 | 250 | |
| 120 (5") | 124.8 | 7.989 | 125 | +5.0 -3.0 |
| 150 (6") | 153 | 13.800 | 70 |
Company Profile
Shandong Shengye Grinding Ball Co., Ltd is located in the beautiful city: Zhangqiu District Jinan City. In China, we are a professional factory specializing in the production of grinding media ball and alloy steel bars for the mills, with an annual output of 100,000 tons. More than 95% of the products are exported to more than 30 countries, with customers throughout Southeast Asia, Africa and Latin America. And we have a good business cooperation with the big renowned mining companies, cement plants, thermal and chemical power plants in China and worldwide, we have received favorable comments from them.
At present, the company has 10 production lines of forged and automatic hot rolling that are world advanced level, and produce grinding balls with diameters from 15 mm to 200 mm and several steel bars resistant to wear. Given that the company uses advanced technology and automated processes, the entire round bar is uniformly heated at one time to ensure each ball produced is of high quality.
Testing Equipment
We have a first-class laboratory and equipped with advanced testing equipment to ensure the quality:
Spectrometer--The wear resistance of grinding media ball is mainly determined by its chemical composition.
Hardness tester-- Testing the surface hardness of grinding ball.
Laser cutting machine-- Cuting the core of grinding ball.
Impact tester-- Ball mill with a diameter more than 6m, the larger the impact value, the lower the breaking rate.
Microscope-- Observe the density and structure of grinding ball.
Drop tester--Testing the service life of the forged grinding ball. 
Packing and Delivery
1. Transpotation
Ocean shipping ( Or Customers designated transportation mode.)
2. Packing Way
a. steel drums (850-930kgs/drum) b. flexible container bags(1ton/bag)
3.Delivery Time
Witnin 15-20 days after received the payment or LC at sight. (Generally it is 5-10 days if the grinding ball is in stock. or it is 15-20 days if the grinding ball is not in stock, it is according to quantity.)
4. Payment Terms
Payment<=1000USD, 100% in advance. Payment>=1000USD, 30% T/T in advance ,
balance before shippment.
Our Service
1.Free samples
we could offer free grinding media ball samples, you only need to pay the freight cost.
2. After-sales service
Go abroad to visit regular customers several times every year;
Attend national exhibitions;
Pay return visit once a week after the grinding media ball is received, inquire about the usage situation so that we can help to solve possible problems promptly.
3.Sales areas
Our grinding media ball is exported to over 30 countries and regions including USA, Republic of Korea, Japan, Malaysia, Australia, Canada and South Africa, etc., well and universally received by clients. In order to better serve customers, we have set up the office in Malaysia, Chile, United States and Spain.
Certificate Show
Our grinding media ball has passed the TUV ISO9001, ISO14001, OHSAS 18001, SGS, BV ect. Certificates
Any question about the grinding media ball, pls feel free to contact us as below:
Ina / MANAGER
SHANDONG SHENGYE GRINDING BALL CO.,LTD