80mm Ball Mill Balls Steel Grinding Balls Grinding Media Steel
Balls For Mining
1. Steel Grinding Balls Name
Grinding Media Balls
Grinding Steel Balls
Mining Balls
2. Steel Grinding Balls Classification:
Cast Iron Balls
Forged steel balls
cylpebs
hot rolling balls
3. Forged ball, Hot Rolling ball,Grinding rods specifications:
① Chemical Composition
Material |
Chemical Composition |
| C45 |
C:0.42-0.5,Si:0.17-0.37,Mn:0.5-0.8,Cr:≤0.25, P:≤0.035, S:≤0.035, Ni:≤0.25, Cu:≤0.25
|
| 60Mn |
C:0.55-0.65, Si:0.17-0.37, Mn:0.7-1.0, Cr:≤0.25, P:<0.04, S:<0.04, Ni:≤0.3, Cu:≤0.25
|
| B2 |
C:0.72-0.85, Si:0.17-0.37, Mn:0.7-1.0, Cr:0.4-0.6, P:≤0.025, S:≤0.025, Ni:≤0.02, Cu:≤0.02
|
| B3 |
C:0.58-0.66, Si:1.3-1.9, Mn:0.65-0.8, Cr:0.7-0.9, P:≤0.025, S:≤0.025, Ni:≤0.02, Cu:≤0.02
|
| Material | Chemical Composition |
| C | Si | Mn | Cr | P | S | Ni | Cu |
| C45 |
0.42-0.5 |
0.17-0.37 |
0.5-0.8 |
≤0.25 |
≤0.035 |
≤0.035 |
≤0.25 |
≤0.25 |
| 60Mn |
0.55-0.65 |
0.17-0.37 |
0.7-1.0 |
≤0.25 |
<0.04 |
<0.04 |
≤0.3 |
≤0.25 |
| B2 |
0.72-0.85 |
0.17-0.37 |
0.7-1.0 |
0.4-0.6 |
≤0.025 |
≤0.025 |
≤0.02 |
≤0.02 |
| B3 |
0.58-0.66 |
1.3-1.9 |
0.65-0.8 |
0.7-0.9 |
≤0.025 |
≤0.025 |
≤0.02 |
≤0.02 |
② Hardness
Size |
C45 |
60Mn |
B2 |
B3 |
| 20mm | 55-58 | 58-62 | 60-64 | 62-65 |
| 30mm | 55-58 | 58-62 | 60-64 | 62-65 |
| 40mm | 55-58 | 58-62 | 60-64 | 62-65 |
| 50mm | 55-58 | 58-62 | 60-64 | 62-65 |
| 60mm | 55-58 | 58-62 | 60-64 | 62-65 |
| 70mm | 53-56 | 58-62 | 60-64 | 61-63 |
| 80mm | 53-56 | 58-62 | 59-63 | 60-65 |
| 90mm | 50-55 | 58-62 | 57-61 | 60-65 |
| 100mm | 48-52 | 57-61 | 56-60 | 60-65 |
| 110mm | 48-52 | 57-61 | 55-60 | 58-64 |
| 120mm | 48-52 | 57-61 | 55-60 | 56-63 |
| 130mm | 48-52 | 57-61 | 55-60 | 56-63 |
| 140mm | 48-42 | 57-61 | 55-60 | 56-63 |
| 150mm | 48-52 | 57-61 | 55-60 | 56-63 |
③ Weight
| Size(mm) | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 |
| Weight(kg) | 0.033 | 0.111 | 0.261 | 0.512 | 0.883 | 1.402 | 2.092 | 2.98 | 1.087 | 5.44 | 7.062 | 9.008 | 11.25 | 13.83 |
④ Dragon balls specifications
Diameter (mm) | Diameter Tolerance (mm) | Approx Weight of per ball(kg) | Average numbers per ton |
| 20 | ＋1,－0.5 | 0.033 | 30303 |
| 30 | ＋2,－1 | 0.11 | 9090 |
| 40 | ＋2,－1 | 0.261 | 3831 |
| 50 | ＋2,－1 | 0.512 | 1961 |
| 60 | ＋2,－1 | 0.883 | 1132 |
| 70 | ＋3,－1.5 | 1.402 | 713 |
| 80 | ＋3,－1.5 | 2.092 | 478 |
| 90 | ＋3,－1.5 | 2.98 | 335 |
| 100 | ＋3,－1.5 | 1.087 | 244 |
| 110 | ＋3,－1.5 | 5.44 | 183 |
| 120 | ＋3,－1.5 | 7.062 | 141 |
⑤ Grinding rods size
| Diameter | 30mm-90mm |
| Length | 3.2 m-4.5 m |
4. Cast balls, cylpebs Specifications:
① Chemical Composition
| Material | Chemical Composition |
| Low Cr | C:2.2-3.4, Si:≤1.2, Mn:0.5-1.5, P:≤0.06, S:≤0.06, Cr:1.0-1.5 |
| Medium Cr | C:2.0-3.2, Si:<1.0, Mn:0.5-2.5, P:≤0.06, S:≤0.06, Cr:≥5 |
| High Cr | C:2.0-3.2, Si:<1.0, Mn:0.5-2.5, P:≤0.06, S:≤0.06, Cr:≥10 |
| Material | C | Si | Mn | Cr | P | S |
| Low Cr | 2.2-3.4 | ≤1.2 | 0.5-1.5 | 1.0-1.5 | ≤0.06 | ≤0.06 |
| Medium Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≥5 | ≤0.06 | ≤0.06 |
| High Cr | 2.0-3.2 | <1.0 | 0.5-2.5 | ≥10 | ≤0.06 | ≤0.06 |
② Hardness
| Type | Low Cr | Medium Cr | High Cr |
| 20mm-150mm | 45-50 | 48-55 | 58-63 |
③ Dragon Balls Weight
| Size(mm) | 20 | 30 | 40 | 50 | 60 | 70 | 80 | 90 | 100 | 110 | 120 | 130 | 140 | 150 |
| Weight(kg) | 0.033 | 0.111 | 0.261 | 0.512 | 0.883 | 1.402 | 2.092 | 2.98 | 1.087 | 5.44 | 7.062 | 9.008 | 11.25 | 13.83 |
④ Dragon balls specifications
Diameter (mm) | Diameter Tolerance (mm) | Approx Weight of per ball(kg) | Average numbers per ton |
| 20 | ＋1,－0.5 | 0.033 | 30303 |
| 30 | ＋2,－1 | 0.11 | 9090 |
| 40 | ＋2,－1 | 0.261 | 3831 |
| 50 | ＋2,－1 | 0.512 | 1961 |
| 60 | ＋2,－1 | 0.883 | 1132 |
| 70 | ＋3,－1.5 | 1.402 | 713 |
| 80 | ＋3,－1.5 | 2.092 | 478 |
| 90 | ＋3,－1.5 | 2.98 | 335 |
| 100 | ＋3,－1.5 | 1.087 | 244 |
| 110 | ＋3,－1.5 | 5.44 | 183 |
| 120 | ＋3,－1.5 | 7.062 | 141 |
⑤ Grinding cylpebs Size(mm)
6×6 |
8×8 |
10×10 |
15×15 |
12×18 |
20×35 |
22×30
|
25×25 |
25×30 |
25×35 |
30×35 |
30×40 |
35×40 |
35×45 |
⑥ Production Process
Cast Balls and cylpebs are melted in electric furnace and poured
into moulds after scientific proportioning. High chromium balls and
cylpebs are also processed by oil quenching.
⑦ The Abrasion of the cast balls when grinding the cement
| Material | Abrasion | Breakage | Size(mm) |
| Low Chrome Cast Ball | 85-105g Cast Balls /Ton Cement | <2% | 10-150mm |
| Medium Chrome Cast Ball | 50-80g Cast Balls /Ton Cement | <1.5% | 10-150mm |
| High Chrome Cast Ball | 35-60g Cast Balls/Ton Cement | <1% | 10-120mm |
| High Chrome Cylpebs | 35-60g Cylpebs/Ton Cement | <1.5% | 12×18-35×40 |
| Low Chrome Cylpebs | 65-95g Cylpebs/Ton Cement | <1% | 12×18-35×40 |
| Micro Cylpebs | 6×6 8×8 10×10 12×12 15×15 |
5. The difference of the forged ball and cast ball
① Different production line
② Different raw material
③ Different chemical element
④ Different core hardness and core hardness
6. How to choose the material
① According to the different customer need and usage.
② According to the ball mill size, dry grinding or wet grinding. We
can recommend you the most suitable products.
7. Quality Control
① Factory Test
Grinding balls test is an very important step. Real-time detection
will be carried out in the production process. Balls produced in
each shift will be sampled in large quantities and tested for size,
hardness, chemical composition, drop test, core pulling and impact
value to ensure the quality of balls.
② The third party test
According to the customer different demand, grinding balls can be
tested by any third party.
8. Packing
Grinding balls are usually packed in container bags and steel
drums, it can also be customized according to different customer
needs.
9. Company Introduction
Dragon balls factory are established in 2001.Up to now, we have
cooperated with many large power plants in China for more than 10
years. Since 2007, Dragon balls has set up its own foreign trade
team, and began to show itself to the world. The forged ball, cast
ball and cylpebs are widely praised by friends at home and abroad.
Dragon balls has a very mature technology research and development
team and sales team, we are constantly expanding the factory and
team every year, in order to meet the growing demand at home and
abroad.
Steel balls are a long-term business.
We are willing to do it all the time because if we know someone, we
will become permanent friends.
We can always do this for so many years because our quality
supports our long-term cooperation and friendship.
The quality of every steel ball is crucial because it is a strong
bridge that connects us.
