Grinding Balls
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SPECIFICATION
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Nominal diameter
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Diameter Tolerance
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Weight of single ball in average
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Surface hardness
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Impact toughness
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(mm)
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(mm)
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(g)
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(HRC)
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(J/cm2)
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Φ60
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+3 -2
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888
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60-64
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8-10 （ball mill） ≥14
（semi-autogenous mill）
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Φ70
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1410
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Φ80
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2104
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Φ90
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2996
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Φ100
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4110
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Φ110
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+4 -2
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5457
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60-64
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Φ120
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7102
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Φ130
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9030
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Φ140
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+4 -3
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11278
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Chengde Rongmao Cast Steel Co.,Ltd. founded in 1980s, and located in historic and cultural city - Chengde China, is a large-scale casting & forging enterprise. For thirty years Rong Mao has produced Austempered Ductile Iron (ADI) grinding ball, Forged grinding balls, ball mill liner, various models of jaw crusher tooth plate, hammer crusher liner, castor-oil plant section, high-chromium alloy combined hammer and all kinds of high manganese steel castings. The company has 400 staff, including technical management personnel of 80 and 30 with senior and medium professional titles, and its plant covers an area of 36,000 square meters, with workshop area of 26,000 square meters and fixed assets of 200 million yuan. The annual output is 100,000 tons.
Rong Mao Cast Steel Co.,Ltd manufacture grinding balls, grinding media balls for mining, SAG/ball mill liner, alloy/crusher hammer, forged grinding ball in China.
