HEXADUR^® - the optimal wear protection for the cement industry

With the inherent disadvantages of conventional HPGRs in mind, Köppern has pioneered the development of a new generation of highly efficient wear protection for HPGRs. Our objective is to achieve a commercially attractive combination of:

• stable throughput over the full service life
• significant energy savings through improved grinding efficiency
• long service life
• high availability
• low operating costs.

Based on years of intensive research and development, the HEXADUR^® wear protection system has reached maturity as the optimal solution against roller surface wear. Several HEXADUR^® product variants are available for different applications. Read more about applications 

The two-part design consists of a wear-protected tire shrink-fitted onto a roller core. The multi-material HEXADUR^® System has many advantages over conventional HPGR roller surfaces:

• Small and evenly distributed surface abrasion assures consistent flake production and minimizes maintenance
• Consistent material intake and throughput due to the autogenous wear protection layer ensures constant grinding performance and reliability
• Roller cores may be reused after the service life of HEXADUR^® tires, as cracks in the cores initiated by welding do not arise

These unique features result in:

• an even usage pattern that provides consistent operational conditions in terms of throughput and grinding efficiency
• more reliable costing due to a long service life coupled with a low incidence of damage, maintenance and downtime.

As a universal industry solution, HEXADUR^® tires can be fitted to HPGRs of most suppliers, and Köppern is able to offer customized solutions for specific applications:

• Different wear-resistant powder-metallurgical surface material compositions
• Different surface profiles
• Made-to-measure rollers up to 2,000 mm in diameter