GCC VS PCC and Calcium Carbonate Grinding Mills

WHAT IS GCC AND PCC?

GCC is naturally derived, cost-effective, and widely used in construction and general fillers.
PCC is synthetically made, pure, and ideal for high-performance applications in industries like pharmaceuticals, cosmetics, and premium paper.
 

1. Ground Calcium Carbonate (GCC)
GCC is a naturally occurring form of calcium carbonate extracted from natural sources such as limestone, marble, or calcite.
 

Production	Properties	Applications
Raw materials are quarried and crushed into smaller pieces. The crushed material is then ground into fine powder using grinding mills like ball mills or ultrafine mills.	1. Particle Shape: Irregular and angular. 2. Purity: Dependent on the quality of the natural source; may contain impurities. 3. Fineness: Available in a range of coarseness, up to 2500 mesh. 4. Cost: More affordable due to simpler processing.	1. Construction materials (e.g., cement, concrete). 2. Filler in plastics, paints, rubber, and adhesives. 3. Paper coatings for brightness and opacity.

 
 
2. Precipitated Calcium Carbonate (PCC)
PCC is a synthetic form of calcium carbonate produced through a chemical process.
 

Production	Properties	Applications
Calcium hydroxide (slaked lime) is reacted with carbon dioxide gas. The chemical reaction forms calcium carbonate, which is filtered, dried, and processed into desired particle shapes and sizes.	1. Particle Shape: Uniform and controlled, can be rhombohedral, scalenohedral, or spherical. 2. Purity: Very high, as impurities are removed during synthesis. 3. Fineness: Extremely fine particles with precise size control, often smaller than GCC. 4. Cost: More expensive due to its chemical production process.	1. High-quality paper (e.g., glossy paper, photocopy paper). 2. Pharmaceuticals (e.g., antacids and calcium supplements). 3. Food and cosmetics (as additives or fillers). 4. Specialty paints, coatings, and rubber products.

 

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WHAT ARE DIFFERENCES BETWEEN GCC AND PCC?

Feature	GCC	PCC
Source	Natural (limestone, chalk, marble)	Synthetic (chemical reaction)
Particle Shape	Irregular	Uniform (controlled shapes)
Fineness	Up to 2500 mesh	Extremely fine, highly controlled
Purity	Depends on raw material	Very high
Cost	Lower	Higher
Applications	Bulk use (construction, basic fillers)	Specialty (pharmaceuticals, food, paper)

 

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CALCIUM CARBONATE GRINDING MILLS SUPPLIER

 
Shanghai Clirik Machinery Co., Ltd. is a professional manufacturer and supplier of calcium carbonate grinding mills, offering advanced solutions for ultrafine grinding applications.
 

1.Core Products for Calcium Carbonate Grinding

 
a. HGM Series Ultrafine Grinding Mill

• Fineness: 325–2500 mesh (adjustable).
• Capacity: 0.5–45 tons per hour.
• Applications: Ideal for producing fine and ultrafine calcium carbonate powders for plastics, coatings, paper, and rubber industries.
• Features:

1. Energy-efficient design.
2. Advanced classifiers for precise particle size control.
3. Low vibration and noise.

 

b. CLUM Series Vertical Roller Mill

• Fineness: 400–3000 mesh.
• Capacity: 1–20 tons per hour.
• Applications: Best for large-scale production of ultrafine powders, especially for high-end uses in coatings and paper.
• Features:

1. Combines grinding, drying, and classifying in one machine.
2. Highly automated with minimal manual intervention.
3. Excellent for moisture-containing materials.

 
c. CLRM High-Pressure Grinding Mill

• Fineness: 80–500 mesh.
• Capacity: 1–40 tons per hour.
• Applications: Suitable for medium-coarse calcium carbonate powder production.
• Features:

1. High-pressure spring improves grinding efficiency.
2. Suitable for materials with Mohs hardness < 9.3.

 

2.Why Choose Clirik for Calcium Carbonate Grinding Mills?

 
a. Expertise in Ultrafine Grinding
Clirik specializes in ultrafine grinding technologies, offering tailored solutions for calcium carbonate production.
 
b. Advanced Manufacturing
Precision engineering ensures high durability and performance.
Incorporates energy-saving designs and eco-friendly technologies.
 
c. Customization and Turnkey Solutions
Equipment can be customized to meet specific production requirements.
Complete production line solutions, including grinding mills, classifiers, and auxiliary equipment.
 
d. Global Presence
Clirik has supplied equipment to customers worldwide, including in Europe, Asia, Africa, and the Americas.
 

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3.Applications of Clirik Mills for Calcium Carbonate

 

• Plastics: Filler for improving strength and reducing costs.
• Paints and Coatings: Enhances brightness, opacity, and rheological properties.
• Paper: Improves whiteness, opacity, and smoothness.
• Rubber: Provides reinforcement and improves durability.
• Food and Pharma: Used in calcium supplements and food-grade applications.

 

4.Key Benefits of Clirik’s Grinding Mills

 

• High Fineness: Achieves D97 ≤ 5 microns for high-performance applications.
• Energy Efficiency: Advanced systems reduce energy consumption by up to 30%.
• Durable Components: Long-lasting grinding rollers and rings minimize downtime.
• Environmentally Friendly: Equipped with dust collectors to meet environmental standards.