How to use double roller pelletizer to make 10 t/h limestone pellets

Introduction to Double Roller Pelletizer

The roller pelletizer is a machine used to produce pellets from various materials, including limestone. It is an efficient and cost-effective way to create high-quality pellets for various applications. The double roller pelletizer works by pressing the material through two rollers that rotate in opposite directions, creating pressure and heat that forms the pellets.

Preparing Limestone for Pelletizing

Before using the double roller pelletizer to make limestone pellets, it is important to prepare the material properly. This involves crushing the limestone to a fine powder and ensuring that it is free from any impurities. The limestone should also be dried to remove any moisture, as this can affect the quality of the pellets.

Setting Up the Double Roller Pelletizer

Once the limestone is prepared, the next step is to set up the double roller pelletizer. This involves adjusting the rollers to the correct size and shape for the desired pellet size. The rollers should be set to a pressure that is high enough to create a strong pellet, but not so high that it causes the material to crumble.

Using the Double Roller Pelletizer

To use the double roller pelletizer, the prepared limestone is fed into the machine at a steady rate. The rollers press the material together, creating heat and pressure that forms the pellets. The pellets are then ejected from the machine and can be cooled and collected for use.

Achieving 10 t/h Production Rate

To achieve a production rate of 10 t/h with the double roller pelletizer, it is important to optimize the machine’s settings and ensure a consistent feed rate. This may involve adjusting the speed of the rollers, the pressure, and the size of the pellets. It is also important to regularly maintain the machine to ensure it is running at peak efficiency.


The double roller pelletizer is an effective and efficient way to produce limestone pellets. By properly preparing the material, setting up the machine, and optimizing its settings, it is possible to achieve a production rate of 10 t/h. With regular maintenance and careful operation, the double roller pelletizer can produce high-quality pellets for various applications.

How to make limestone powder pellets?

In the realm of industrial manufacturing, the conversion of limestone powder into granules plays a crucial role. This process not only facilitates easier management and application of the material but also enhances its practicality across multiple industries. The present article delves into the techniques and equipment employed in this transformation, providing comprehensive insights for individuals seeking to establish an efficient production line.

Understanding the Composition and Initial Steps

To embark on the granulation process, it is imperative to comprehend the nature of limestone – the prime component. Majorly consisting of calcium carbonate (CaCO3), limestone necessitates certain preparatory measures. The initial step involves grinding limestone into a fine powder, preparing it for the subsequent granulation phase. Additional preparatory tasks may encompass adjusting moisture content and eliminating impurities to ensure the production of high-quality granulation material.

NPK Materials for Double Roller Extruder
NPK Materials for Double Roller Extruder

The utilization of advanced machinery lies at the core of converting limestone powder into granular form. A pivotal apparatus in this process is the double roller extrusion granulator, which adopts a dry granulation method, thereby eliminating the need for binders. This device applies pressure to the limestone powder, transforming it into uniformly shaped granules. The significance of this machine cannot be overstated as it greatly enhances process efficiency and guarantees the production of granules with consistent sizes and shapes, which are vital for their ultimate applications.

Enhancing Production Line Efficiency: Incorporating a Horizontal Mixer and Vertical Crusher

In the pursuit of premium-quality limestone granules, integrating a horizontal mixer and a vertical crusher into the production line is imperative. The horizontal mixer ensures thorough blending of limestone powder before granulation, thereby ensuring uniformity in the final product. Simultaneously, the vertical crusher proves invaluable in reducing particle size and achieving consistency in the raw material. Together, these machines optimize the production process, significantly elevating efficiency and the quality of output in the granulation line.

Double Roller Granular NPK Fertilizer Production Line
Double Roller Granular NPK Fertilizer Production Line

For more detailed information on a simplified NPK fertilizer granulation line, please click here.

Enhancing Production Line Efficiency: The Significance of Equipment Selection

The selection of appropriate machinery is pivotal in establishing an optimal production line for limestone granules. Equipment such as double roller extrusion granulators, horizontal mixers, and vertical crushers should be chosen based on their performance, durability, and compatibility with limestone processing requirements. Additionally, considerations should be given to equipment scalability and flexibility to cater to potential future expansion needs and variability in production demands.


The journey from limestone powder to granules necessitates meticulous planning, a profound understanding of material properties, and the strategic utilization of specialized machinery. By prioritizing the selection of high-performance equipment and adhering to best practices in material preparation and process execution, one can establish a robust production line. In this context, Yushunxin emerges as a professional manufacturer of fertilizer equipment, offering solutions tailored to the intricate needs of limestone granulation. Their expertise and product offerings represent a valuable asset for those aspiring to excel in the production of limestone granules. For more information, please visit: