Solutions

The best calcium carbonate grinding mill depends on the required particle-size distribution, especially D50 and D97, as well as raw material hardness, moisture, whiteness, capacity, final application, and whether the GCC powder will remain uncoated or receive stearic acid surface treatment.

Coated calcium carbonate powder is produced by grinding high-purity limestone or calcite into controlled GCC particle sizes, classifying the powder to remove oversize particles, and applying a uniform surface treatment—commonly stearic acid—to improve compatibility with plastics, rubber, PVC, masterbatch, cable compounds, and other organic systems.

Coated calcium carbonate is surface-treated—most commonly with stearic acid—to improve compatibility with organic polymers, while uncoated calcium carbonate retains its natural hydrophilic mineral surface and is often preferred for water-based, mineral, ceramic, paper, and general filler applications.

The global construction machinery trade market has experienced significant changes over the past several years. After strong fluctuations between 2022 and 2024, several major machinery categories returned to growth in 2025, while others continued to face market pressure.

For a large-scale cement plant in Vietnam, the most suitable clinker grinding solution is generally a vertical roller mill or a roller press combined with a high-efficiency separator and ball mill, depending on the existing plant configuration, required cement types, feed variability, electrical-power conditions, and expansion strategy.

​Maintaining a raw mill in a cement plant requires more than replacing worn grinding components. Stable raw meal production depends on keeping the entire grinding system—feed preparation, grinding, drying, classification, airflow, dust collection, lubrication, and conveying—in balance.

For paper coating and printing-grade kaolin, the grinding system should be selected around the required particle-size distribution, brightness preservation, contaminant control, moisture condition, and final coating formulation—not simply by tonnes per hour.

As a result, competition in the grinding mill industry is shifting from equipment price and nominal capacity toward energy consumption, product quality, automation, environmental performance, process design, and lifecycle service.

A raw mill in an Egyptian cement plant should be considered for upgrading when it has become a persistent production bottleneck, consumes more energy than necessary, cannot maintain the required raw meal fineness, experiences repeated vibration or operational trips, or has insufficient drying and gas-handling capacity for the current raw materials.

Liming Heavy Industry is pleased to announce its participation in Electra Mining Africa 2026 in Johannesburg, South Africa. As an important mining, electrical, manufacturing, and industrial trade event in Africa, the exhibition provides an excellent platform for industry professionals, equipment manufacturers, technology providers, and mining companies to exchange ideas and explore new business opportunities.

Liming Heavy Industry is pleased to announce its participation in Mining Indonesia 2026, one of the leading international exhibitions for the mining and mineral processing industry. The event will bring together mining professionals, equipment manufacturers, technology providers, and industry experts from Indonesia and around the world.

Liming Heavy Industry participated in the 3rd China–Latin America and Caribbean Development Forum in Zhengzhou, strengthening cooperation with Latin American markets and showcasing intelligent grinding equipment and integrated mineral processing solutions.