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Complete Ball Mill Wear Parts | Bimetal Composite Liner Life 24 Months (5x Mn Steel) · Custom Materials | Henan Sankuang Machinery
Sankuang Machinery provides complete mill parts for ball mills, rod mills, and AG/SAG mills.
Actual Delivery Case: An iron ore plant's ball mill (Φ5.5×8.5m) used standard high manganese steel liners averaging only 4 months in wet grinding. Based on feed size (≤12mm) and slurry pH (alkaline), we recommended modified high manganese steel liners with optimized water toughening treatment (1050-1100℃ followed by rapid water quenching). Service life reached over 7 months, reducing annual replacements from 3 to 1.7 times.
Liner Material Selection Guide:
High Manganese Steel (ZGMn13 series): Work-hardens from HB200 to HB500+ under impact, suitable for large mills with strong impact loads.
High Chromium Cast Iron (Cr15/Cr20/Cr26): Hardness HRC58-65, wear resistance 2-3x that of high manganese steel.
Bimetal Composite Material: HCr working surface + Mn steel base. In a mining application, bimetal composite liner average service life reached 24 months, nearly 5 times that of high manganese steel liner.
Other Products: End covers (ZG230-450, up to 300 tons), Girth gears (module 10-70, up to 15m), Spherical bearings (Babbitt, contact ≥70%).
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