Vertical roller mills have become the preferred grinding technology in cement manufacturing, achieving significantly lower energy consumption than traditional ball mill systems. With cement grinding consuming a high portion of plant electrical energy and representing the greater part of total electricity bills, VRM efficiency directly impacts operational profitability. However, extreme grinding conditions subject components to severe wear that reduces efficiency and increases maintenance costs.
Vertical Roller Mill (VRM) wear occurs through multiple mechanisms simultaneously. Grinding rollers and table segments experience notable pressure combined with continuous abrasive contact from high silica content materials. When grinding materials with raised silica percentage, granulated blast furnace slag and steel slag, wear rates accelerate significantly. Progressive wear deteriorates mill performance: production output can decline and power consumption increases. Due to the wear-induced degradation of the grinding table, excessive vibration and suboptimal clearances, risk equipment damage.
Chrome carbide hardfacing represents the industry-standard wear protection solution, offering optimal balance between hardness and toughness. High-chromium alloys with sufficient carbide content achieve a service life of several thousands hours in grinding applications—representing multiple times the longevity of conventional low-alloy materials. The hardfacing process enables the manufacturing of components with wear-resistant overlays, providing superior abrasion and impact resistance.
With its exceptional hardfacing technology CeraMetal manufactures complete wear-protected components for the cement industry, including grinding elements, classifier assemblies, material transport ducting, and auxiliary parts. All are engineered with appropriate chrome carbide protection for specific operating conditions and material characteristics.
Over the years we have manufactured a multitude of VRM components, for our clients, such as:
- Roller covers
- Armour ring segments
- Louvre ring segments
- Scrapers
- Discharge ring segments
- Mill wall liners
- Guide vanes
- Inlet & outlet funnels
- Other specialized VRM components
In addition to manufacturing new components, we also offer hardfacing services that restore worn grinding rollers, table segments, and auxiliary components to original specifications, substantially extending service life compared to unprotected parts.
