Industry News

For a new cement project, a vertical raw mill is often a practical technology to evaluate because it can combine grinding, drying, and classification in a compact process arrangement.

For most new medium- and large-scale cement projects, a vertical raw mill is a practical technology to evaluate because grinding, drying, and classification can be integrated into one system.

A complete calcium carbonate grinding and coating plant converts limestone or calcite into controlled GCC powder through crushing, grinding, air classification, collection, surface treatment, storage, and packing.

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.

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.

MTW/Raymond Mill suits 60–400 mesh GCC; LUM/MW mills suit 400–2500+ mesh. PCC is chemically produced; mills are mainly used for GCC.

Ordinary Portland cement (OPC) remains the dominant hydraulic binder in global construction due to its excellent mechanical performance, wide availability, and well-established production technology.