The eccentric sleeve wear plate is a critical wear component in cone crushers, designed to protect the eccentric sleeve from abrasive wear and maintain proper clearance. This specific plate is manufactured from Mn18Cr2 Hadfield steel, 45mm thick, offering a hardness of 220-250 HB and tensile strength ≥850 MPa.
The eccentric sleeve wear plate is a precision-engineered component that fits directly onto the eccentric sleeve of cone crushers, forming a protective barrier against abrasive rock and ore. This 45mm thick plate is cast from Mn18Cr2 Hadfield steel, a material renowned for its work-hardening properties under impact. With a hardness of 220-250 HB in the as-cast condition and a tensile strength of at least 850 MPa, it offers exceptional resistance to gouging and wear. The plate is specifically designed for Sandvik CH660 and Metso HP500 models, ensuring dimensional accuracy and optimal fit. Its 45mm thickness provides a substantial wear allowance, extending the replacement interval and reducing maintenance frequency in demanding crushing circuits.
In mining and aggregate operations, cone crushers operate under constant pressure, and the eccentric sleeve is subjected to high radial loads and abrasive particles. The standard wear plates often fail prematurely, leading to unplanned downtime and costly repairs. This Mn18Cr2 wear plate addresses these pain points by delivering a 2.5x longer service life compared to conventional plates. Its work-hardening behavior means that under impact, the surface hardness increases, further enhancing wear resistance. This results in fewer replacements, lower inventory costs, and improved overall equipment effectiveness (OEE). The plate is ideal for secondary and tertiary crushing stages where abrasive materials such as granite, basalt, and iron ore are processed.
Compared to other wear plates in the series, this 45mm Mn18Cr2 version stands out for its balance of thickness and material performance. Thinner plates (e.g., 30mm) may be suitable for lighter-duty applications but wear faster, while thicker plates (e.g., 60mm) add unnecessary weight and cost for standard crushing tasks. The 45mm thickness is optimized for the Sandvik CH660 and Metso HP500, providing a direct fit without modification. Additionally, the Mn18Cr2 alloy offers superior toughness compared to martensitic steels, reducing the risk of cracking under high impact loads. This plate is also available with optional chamfered edges to facilitate installation and minimize stress concentrations.
