Tag Archive : granulator for making limestone pellets

What granulators are suitable for making limestone pellets

Granulators play a crucial role in the process of pelletizing limestone, which can then be used for various applications in industries such as agriculture, construction, and manufacturing. Below is a detailed description of the types of granulators that are suitable for making limestone pellets and their respective advantages.

Introduction to Limestone Pelletization

Limestone pelletization involves the agglomeration of finely ground limestone powder into small, uniform pellets. These pellets offer several benefits over traditional limestone powder, including improved handling, reduced dust generation, and enhanced performance in various applications. The process of pelletizing limestone typically requires a granulator or pelletizer that can form the powder into dense, round pellets.

Disc Granulators

Functionality and Design: Disc granulators, also known as pan granulator machinery, are widely used for pelletizing fine materials, including limestone. They consist of a large, flat, circular pan that rotates at an angle. As the limestone powder is fed into the pan, rolling action caused by the rotation helps to accumulate the powder into small pellets.


  • Efficient for continuous production
  • Simple and robust design
  • Adjustable angle and speed for process optimization
  • Cost-effective for medium-scale production
disc pelletizer for limestone pellets making

disc pelletizer for limestone pellets making

Rotary Drum Granulators

Functionality and Design: Rotary drum granulators are large cylindrical drums that rotate horizontally. Limestone powder, along with a binder solution, is introduced into the drum. Lifters within the drum pick up the material and drop it through the air, which helps to form pellets as the material rolls and coalesces.


  • Suitable for large-scale production
  • Capable of handling high-capacity throughput
  • Uniform pellet size distribution
  • Can integrate with coating processes for enhanced pellet properties
limestone pellets rotary drum granulation machine

limestone pellets rotary drum granulation machine

Extrusion Granulators

Functionality and Design: Extrusion granulators work by forcing material through a die using one or more screws. The high-pressure environment and shear forces within the extruder barrel compact the limestone powder into dense pellets that then exit through the die in the desired size and shape.


  • Precise control over pellet size and density
  • Low binder requirement due to high compaction forces
  • Continuous operation suited for automated production lines
  • Versatility in pellet shapes and sizes
limestone pellets extrusion machine

limestone pellets extrusion machine

Selecting the Right Granulator

When selecting a granulator for limestone pelletization, factors such as the desired pellet size, production scale, material characteristics, and cost must be considered. Each type of granulator offers unique advantages and may be better suited for particular applications. For instance, disc granulators are a great choice for medium-scale operations, while rotary drum granulators are preferred for high-volume production. On the other hand, extrusion granulators offer precision and variety in pellet shapes, making them ideal for specialized products.


The production of limestone pellets is a critical process in various industries, and choosing the right granulator is essential for achieving the desired product characteristics. With a range of granulation equipment available, manufacturers can select the most suitable technology to meet their production needs while ensuring the quality and efficiency of their limestone pellet products.