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20mm - 150mm Cement Grinding Balls High Precision +-1mm / +-2mm Tolerance

Categories Cement Grinding Balls
Brand Name: DRAGON STEEL BALLS
Model Number: 45# 60Mn B2 B3 Low Mid high Cr
Certification: CE,ISO
Place of Origin: CHINA
MOQ: 1 ton
Price: Negotiable
Payment Terms: L/C, T/T, D/A, D/P, Western Union, MoneyGram
Supply Ability: 3000 tons / Month
Delivery Time: 3-7 work days/ 25 tons
Packaging Details: Container bags ,steel drums
Keyword: Forged Steel Ball
Advantage: High Wear Resistant
Size: 20mm-150mm
Production Process: Hot Rolling Forging Casting
Usagae: Mining,Cement plant,Power Station
Port: Tianjin/Qingdao/Shanghai
Material: Round Steel, Steel Iron
Tolerance: +-1mm,+-2mm
Breakage: <1%
Hardness: 58-63
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20mm - 150mm Cement Grinding Balls High Precision +-1mm / +-2mm Tolerance


20mm-150mm Forged Grinding Balls Cast Iron Balls Cement Grinding Balls


1. Cement Grinding balls is used in ball mill for mining,cement plant ,power plant and industry.


① Mining ( Gold, copper, iron ore )

② Cement plant

③ Coal mill

④ Sag mill

⑤ Industry

⑥ All the ball mill or rods mill machine


2. Dragon balls main product & Dragon balls classifications :


Forged ball

Cast ball

Cylpebs

Hot rolling ball


Main ProductClassification
Cast Iron BallLow Cr,Medium Cr,High Cr
Forged BallC45,60Mn,B2,B3
Hot Rolling BallC45,60Mn,B2,B3
CylpebsLow Cr,Medium Cr,High Cr
Grinding RodsC45,60Mn,B2,B3
LinersMn13Cr2,High Chrome

3. Forged Steel Balls mining size and material


Forged ball 20mm-150mm

Cast balls 12mm-150mm

Cylpebs 6×6-50×60

Hot Rolling Ball 20mm-40mm


4. Forged Steel Balls Chemical elements


Forged ball ,hot rolling balls chemical elements



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



MaterialChemical Composition
CSiMnCrPSNiCu
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


Cast Ball ,Cylpebs chemical elements


MaterialChemical Composition
Low CrC:2.2-3.4, Si:≤1.2, Mn:0.5-1.5, P:≤0.06, S:≤0.06, Cr:1.0-1.5
Medium CrC:2.0-3.2, Si:<1.0, Mn:0.5-2.5, P:≤0.06, S:≤0.06, Cr:≥5
High CrC:2.0-3.2, Si:<1.0, Mn:0.5-2.5, P:≤0.06, S:≤0.06, Cr:≥10

MaterialCSiMnCrPS
Low Cr2.2-3.4≤1.20.5-1.51.0-1.5≤0.06≤0.06
Medium Cr2.0-3.2<1.00.5-2.5≥5≤0.06≤0.06
High Cr2.0-3.2<1.00.5-2.5≥10≤0.06≤0.06

5. Grinding balls Hardness


Forged ball ,hot rolling balls hardness



Size


C45


60Mn


B2


B3

20mm55-5858-6260-6462-65
30mm55-5858-6260-6462-65
40mm55-5858-6260-6462-65
50mm55-5858-6260-6462-65
60mm55-5858-6260-6462-65
70mm53-5658-6260-6461-63
80mm53-5658-6259-6360-65
90mm50-5558-6257-6160-65
100mm48-5257-6156-6060-65
110mm48-5257-6155-6058-64
120mm48-5257-6155-6056-63
130mm48-5257-6155-6056-63
140mm48-4257-6155-6056-63
150mm48-5257-6155-6056-63

Cast ball ,cylpebs hardness


TypeLow CrMedium CrHigh Cr
20mm-150mm45-5048-5558-63

6. Grinding Balls Specifications


Diameter

(mm)

Diameter Tolerance

(mm)

Approx Weight of per ball(kg)Average numbers per ton
20+1,-0.50.03330303
30+2,-10.119090
40+2,-10.2613831
50+2,-10.5121961
60+2,-10.8831132
70+3,-1.51.402713
80+3,-1.52.092478
90+3,-1.52.98335
100+3,-1.51.087244
110+3,-1.55.44183
120+3,-1.57.062141

7. Grinding balls Production process


Forged balls are forged by air hammer after being heated by electric furnace.


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.


8. 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


9. 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.


10. Quality Control


① Factory Test

Grinding cylpebs test is an very important step. Real-time detection will be carried out in the production process. Cylpebs 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 cylpebs

② The third party test

According to the customer different demand, cylpebs can be tested by any third party.




Quality 20mm - 150mm Cement Grinding Balls High Precision +-1mm / +-2mm Tolerance for sale
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