Calcium carbonate is one of the most widely used industrial minerals, especially in the paper and plastics industries. As a cost-effective filler, it improves product quality, reduces raw material consumption, and enhances performance. To meet the requirements of these applications, calcium carbonate must be finely ground and surface-coated to achieve better dispersion, higher brightness, and improved compatibility with polymers. Efficient grinding and coating technology is therefore essential for manufacturers looking to achieve consistent quality and lower production costs.

In the paper industry, coated calcium carbonate is used as a filler and pigment to improve paper brightness, opacity, and smoothness. The quality of the coating directly impacts printability and overall paper performance. Fine and uniformly coated particles allow papermakers to reduce pulp usage while maintaining high-quality results. In the plastics industry, coated calcium carbonate enhances strength, toughness, and dimensional stability of finished products. Its compatibility with resins reduces processing costs while ensuring smooth surfaces and improved durability.

Different grinding and coating equipment can be selected depending on production scale and fineness requirements. Raymond mills are widely used for medium-fineness grinding, producing powders in the 80–325 mesh range, suitable for general filler applications. For higher output and integrated drying capabilities, vertical grinding mills are the ideal choice, capable of producing high-quality powders with stable operation and reduced energy consumption. When ultra-fine coated calcium carbonate is required for high-end paper and plastic applications, ultra-fine grinding mills are the best solution, producing powders up to 2500 mesh with excellent particle size control and dispersion properties.

Liming Heavy Industry provides complete solutions for calcium carbonate grinding and coating. With advanced Raymond mills, vertical mills, and ultra-fine mills, the company offers equipment tailored to different production needs. Liming's machines are designed for energy efficiency, stable performance, and environmental compliance, ensuring manufacturers achieve consistent coated calcium carbonate for demanding paper and plastic filler markets.

FAQ

Q1: Why is coated calcium carbonate preferred in paper production?

A: It improves brightness, opacity, smoothness, and printability while reducing pulp costs.

Q2: How does coated calcium carbonate benefit plastics?

A: It enhances strength, toughness, and compatibility with resins, lowering production costs and improving surface quality.

Q3: Which grinding equipment is suitable for different applications?

A: Raymond mills are ideal for medium fineness, vertical mills for large-scale stable output, and ultra-fine mills for high-end ultra-fine powder.

Q4: What advantages do Liming Heavy Industry's mills provide for calcium carbonate processing?

A: They deliver energy savings, precise fineness control, dust-free operation, and reliable performance across various production requirements.