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Forged steel balls and sections

一、 Product Profile
The forged steel balls and sections of traditional ball mills are forged by air hammer. The technological process is roughly as follows:
Material inspection qualified and cut off according to spherical diameter calculation electric furnace then natural gas furnace heating air hammer forging next other quenching and other heat treatment inspection packaging storage, etc. Small hammer is used for small diameter steel ball and large diameter steel ball is forged by large air hammer.

二、Rainbow Forged Steel Ball Productivity Table

Air hammer grade Set Diameter range of forged steel balls Capacity Note
250kg hammer 3 φ20—40mm Ball Small Diameter Steel Section 10000 ton/year Capacity is estimated, actually adjusted according to the order quantity
500kg hammer 5 φ50—90mm Ball Medium diameter steel section 20000 ton/year
750kg hammer 4 φ100mm-130mm Balls 20000 ton/year
1000kg hammer 1 φ140mm Above steel balls 10000 ton/year
other 2 Spare hammer  

三、Rainbow Tower Forged Steel Balls Material No and Chemical Composition Table

Material No Ball model(mm) Chemical composition Mechanical properties
C MN CR S P SI Surface hardness(HRC) impact toughness Crusher rate
LB-1 φ20-150 0.6-0.8 0.8-1.2 ≤0.25 ≤0.035 ≤0.035 0.17-0.37 58-65 >12 j/cm² <0.5%
LB-2 φ30-100 0.7-0.9 0.7-0.8 0.3-0.9 ≤0.025 ≤0.013 0.17-0.37 55-65 >12 j/cm² <0.8%
LB-3 φ90-140 0.6-0.8 0.6-0.8 0.7-0.9 ≤0.03 ≤0.03 1.6-1.9 58-65 >12 j/cm² <0.8%
LB-4 φ60-150 0.9-1.2 0.2-0.4 1.2-1.8 ≤0.025 ≤0.027 0.15-0.35 55-60 >10 j/cm² <1%
LB-5 φ20-150 0.4-0.6 0.5-0.8 0.9-1.2 ≤0.035 ≤0.035 0.17-0.37 55-65 >12 j/cm² <0.5%
LB-6 φ80-150 0.7-0.9 0.8-1.2 0.7-1.2 ≤0.03 ≤0.03 0.1-0.4 58-65 >10 j/cm² <1%
LB-7 φ80-150 0.9-1.1 0.9-1.2 0.4-0.8 ≤0.03 ≤0.03 0.2-0.3 58-65 >10 j/cm² <1%
LB-18 φ30-125 0.7-0.9 0.7-1.2 ≤0.25 ≤0.035 ≤0.035 0.17-0.37 55-65 >10 j/cm² <1%
LB-20 φ50-130 0.8-1.1 0.7-0.9 ≤0.25 ≤0.035 ≤0.035 0.17-0.37 55-65 >10 j/cm² <1%
Note Support OEM or customize special ingredient steel balls according to customer requirements. The hardness of small straight D steel ball is higher than that of large diameter steel ball. If the hardness range is required, it can be adjusted by heat treatment process.
 
四、Forged Steel Ball Physical Parameters
    
NOMINAL DLAMETER
(mm)  (ins)
 
THEORETICALDA
METER
(mm)
APPROX.MASS PER
BALL
(g)
AVERAGE NUMBER
OF BALLS PER MT
20 3/4 20.8 37 27000
25 1 26 72 13900
30 31.2 125 8000
40 41.6 396 3380
50 2 52 578 1730
60 62.4 999 1000
70 67.6 1270 790
75 3 78 1951 510
90 88.4 2839 350
95 93.6 3371 290
100 4 98.8 3964 250
115 114.4 6154 162
120 119.6 7032 142
125 5 124.8 7989 125
135 135.2 10158 98
140 140.4 11375 88
 
五、Forged Steel Ball Packaging
Usually, four kinds of packing methods are used, ton bag, barrel, ton bag + wooden bracket, barrel + wooden bracket.
 
 
 
六、Conclusion

Our company has been manufacturing and exporting Forged Steel balls for many years. We have rich experience in production, inspection, transportation and export. We are willing to base our long-term cooperation on high-quality products, timely shipment and delivery, competitive prices and satisfactory services. Our goal is to be a professional supplier of high-quality wear-resistant consumables for mines in China.

七、Physical pictures of balls



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