Category Archive : fertilizer granulator equipment

How to make cat litter granules in double roller pellet equipment


Cat litter is an essential product for pet owners, providing a clean and convenient solution for managing feline waste. While various types of cat litter exist, many consumers prefer granulated forms due to their excellent absorbency and ease of handling. Double roller pellet equipment is an efficient and cost-effective method for producing high-quality cat litter granules. This equipment compresses raw materials into uniform pellets, which are then processed into granules. In this passage, we will explore the steps involved in making cat litter granules using double roller pellet equipment, including material preparation, granulation, and post-production handling.

bentonite granules production plant

bentonite granules production plant

Preparation of Raw Materials

Selecting the Appropriate Materials

The first step in producing cat litter pellets is selecting the appropriate raw materials. Common materials used include bentonite clay, silica gel, recycled paper, and natural fibers such as corn or wheat. Each material has distinct properties that affect the absorbency, clumping ability, and overall performance of the final product. The choice of material depends on the desired characteristics of the cat litter and consumer preferences.

Crushing and Grinding

To ensure uniformity and facilitate the pelletizing process, the raw materials must be crushed and ground into fine particles. Crushing machines, such as jaw crushers or hammer mills, are used to break down larger chunks of material into manageable sizes. Grinding mills further reduce the particle size, creating a fine, consistent powder that is ready for granulation.


The moisture content of the raw materials needs to be controlled to ensure optimal pellet formation. Materials with high moisture content are dried using rotary dryers or belt dryers to achieve the desired level of dryness. Proper drying ensures that the raw materials bind effectively during the pelletizing process and produce durable granules.

Granulation Process

Feeding the Raw Materials

Once the raw materials are prepared, they are fed into the double roller pellet equipment. The equipment typically consists of a hopper that holds the raw materials and a feeding mechanism that regulates the flow of material into the rollers. Consistent feeding ensures uniform pellet formation and prevents blockages in the equipment.

Compaction and Pellet Formation

The core of the double roller pellet equipment comprises two counter-rotating rollers with specially designed die surfaces. As the raw materials are fed between the rollers, they are compressed and compacted into dense pellets. The adjustable pressure settings of the rollers allow for precise control over the pellet size and density, ensuring that the final product meets the desired specifications.

Pellet Shaping and Cutting

After compaction, the formed pellets may need to be shaped and cut to achieve the desired granule size. Shaping devices and cutting mechanisms integrated into the equipment can trim the pellets to uniform lengths, creating consistent granules suitable for cat litter.

Post-Production Handling

Cooling and Screening

The freshly formed cat litter granules are hot and may be slightly soft. Cooling equipment, such as cooling conveyors or air coolers, is used to reduce the temperature of the granules, allowing them to harden and stabilize. Once cooled, the granules are screened to remove any oversized or undersized particles, ensuring uniformity and quality in the final product.

Adding Fragrances and Anti-Dust Agents

To enhance the appeal and functionality of the cat litter, fragrances and anti-dust agents may be added. Mixing equipment can uniformly incorporate these additives into the granules, providing a pleasant scent and reducing dust generation during use.

Packaging and Storage

The final step involves packaging the cat litter granules for distribution. Packaging machines can fill and seal the granules in bags or containers of various sizes. Proper packaging ensures that the cat litter remains fresh and free from contaminants. The packaged cat litter is then stored in a dry, cool environment until it is ready for shipment to retailers or consumers.


Producing cat litter granules using double roller pellet equipment is an efficient and versatile process that involves several key steps, from raw material preparation to final packaging. By carefully selecting and processing raw materials, feeding them into the pellet equipment, and handling the post-production stages, high-quality cat litter granules can be produced to meet consumer demands. This method not only ensures consistent and durable granules but also allows for customization to enhance the product’s performance and appeal. The use of double roller pellet equipment in cat litter production highlights its importance in creating a clean, convenient, and effective solution for managing feline waste. Visiting:

Why do you choose disc pellet machine to make limestone granules


Limestone granules are a critical component in various industries, including agriculture, construction, and manufacturing. The process of transforming raw limestone into granules involves several steps, one of which is pelletization. Among the different pelletization technologies available, the disc pellet machine has emerged as a preferred choice for making limestone granules. This passage will explore the reasons behind this preference, highlighting the advantages and unique features of the disc pellet machine that make it an ideal choice for limestone granule production.

disc limestone pellets making plant

disc limestone pellets making plant

Efficiency and Uniformity

High Pelletizing Efficiency

One of the primary reasons for choosing a disc pellet machine for limestone granule production is its high efficiency. The machine operates by allowing raw limestone powder to fall onto a rotating disc, where it is sprayed with a liquid binder. The rotational motion of the disc and the centrifugal force work together to form granules quickly and consistently. This efficient process results in high production rates, meeting the demands of large-scale operations.

Uniform Granule Size

Uniformity in granule size is crucial for various applications, particularly in agriculture, where consistent granule size ensures even distribution of nutrients. The disc pellet machine excels in producing granules with uniform size and shape, thanks to its adjustable tilt angle and rotational speed. Operators can fine-tune these parameters to achieve the desired granule size, ensuring consistency and quality in the final product.

Versatility and Customization

Wide Range of Applications

The versatility of the disc pellet machine is another significant factor that makes it a preferred choice. In addition to limestone, the machine can pelletize various other materials, such as fertilizers, coal, and metallic ores. This flexibility allows producers to use the same equipment for different applications, optimizing their investment and operational efficiency.

Customizable Features

Disc pellet machines come with several customizable features that enhance their adaptability. Operators can adjust the disc’s angle, rotational speed, and the amount of liquid binder used in the pelletization process. These adjustments allow for fine-tuning the granule formation process to meet specific requirements, making the machine highly adaptable to different production needs and material characteristics.


Lower Operational Costs

Cost-effectiveness is a critical consideration in selecting pelletization equipment. Disc pellet machines cost typically have lower operational costs compared to other pelletization technologies. The machine’s design ensures minimal waste generation, reducing raw material costs. Additionally, its energy-efficient operation lowers electricity consumption, further contributing to cost savings.

Reduced Maintenance Requirements

The robust construction and simple design of disc pellet machines result in lower maintenance requirements. The components are designed for durability and ease of access, simplifying routine maintenance tasks. This reduces downtime and maintenance costs, ensuring continuous operation and maximizing productivity.

Environmental Impact

Eco-Friendly Operation

Environmental considerations are becoming increasingly important in industrial operations. Disc pellet machines are known for their eco-friendly operation. The pelletization process generates minimal dust and emissions, contributing to a cleaner working environment. Additionally, the machine’s efficient use of raw materials and energy aligns with sustainable production practices.

Waste Reduction

The ability of the disc pellet machine to produce uniform granules with minimal waste aligns with modern waste reduction goals. By optimizing raw material utilization and minimizing off-specification products, the machine helps in reducing the overall environmental footprint of the pelletization process.


The choice of a disc pellet machine for making limestone granules is driven by several compelling factors, including high pelletizing efficiency, uniform granule size, versatility, cost-effectiveness, and environmental benefits. These advantages make the disc pellet machine an ideal solution for producing high-quality limestone granules, meeting the diverse needs of various industries while ensuring operational efficiency and sustainability. Visiting:

How to use pan granulation machine to make organic fertilizer

Introduction to Pan Granulation Machine

Pan granulation machine is a popular equipment used in the production of organic fertilizer. It is designed for the granulation of organic materials, such as animal manure, crop straw, and other organic waste. The machine uses a rotating disc to mix and agitate the raw materials, forming them into granules of a specific size and shape. The granules are then dried and cooled before being packaged for sale.

disc organic fertilizer granulation line

disc organic fertilizer granulation line

Preparing the Raw Materials

Before using the pan granulation machine, it is essential to prepare the raw materials properly. The materials should be crushed or shredded into small pieces to ensure even mixing and granulation. The moisture content of the materials should also be controlled to prevent the granules from becoming too wet or too dry.

Operating the Pan Granulation Machine

To operate the pan granulation machinery, follow these steps:

1. Load the raw materials into the machine’s hopper.
2. Start the machine and adjust the rotation speed of the disc to the desired level.
3. Add water or a binder to the materials if necessary to help with the granulation process.
4. Monitor the granulation process and make any necessary adjustments to the machine’s settings.
5. Stop the machine once the desired size and shape of the granules have been achieved.

Drying and Cooling the Granules

After the granulation process is complete, the granules need to be dried and cooled to ensure their stability and quality. The drying process removes any excess moisture, while cooling helps to prevent the granules from sticking together or becoming deformed.

Packaging and Storage

Once the granules are dry and cool, they can be packaged for sale. It is important to store the granules in a dry, cool place to prevent them from degrading or becoming contaminated.


Pan granulation machine is an efficient and effective way to produce organic fertilizer granules. By following the steps outlined above, users can ensure that their granules are of the highest quality and ready for sale. Proper preparation of the raw materials, careful operation of the machine, and appropriate drying and cooling are all essential to the success of the granulation process.

The Ultimate Guide to Double Roll Granulators

In the world of industrial machinery, Double Roll Granulators play a critical role in the granulation process. Whether you’re in the fertilizer, chemical, or mining industry, understanding how these machines work and their benefits can help optimize your production process. In this guide, we’ll delve into what Double Roll Granulators are, how they work, and why they might be the perfect solution for your granulation needs. Would you want to realize more details? Then you can click here.

What is a Double Roll Granulator?

A Double Roll Granulator is a type of granulation equipment designed to convert powdered materials into granules. This machine consists of two parallel, rotating rolls that compress and shape the raw material into uniform granules. These granulators are particularly popular in the production of fertilizers, where they help create granules of consistent size and shape, crucial for even distribution of nutrients.

How Do Double Roll Granulators Work?

The operation of Double Roll Granulators is relatively straightforward but highly efficient. Here’s a step-by-step look at the process:

  • Feeding: The raw material is fed into the granulator, usually from a hopper, ensuring a steady flow of material into the machine.
  • Compression: As the material passes between the two rotating rolls, it is compressed and compacted into a sheet.
  • Granulation: The compacted sheet is then broken into granules by the rolls, which have specific patterns or teeth that determine the size and shape of the granules.
  • Discharge: The finished granules are discharged from the bottom of the machine, ready for further processing or packaging.

Key Benefits of Double Roll Granulators

  • Consistency and Uniformity: Double Roll Granulators produce granules of consistent size and shape, which is essential for product quality, especially in industries like fertilizers and chemicals.
  • High Efficiency: These granulators can handle a high volume of material, making them ideal for large-scale production environments.
  • Durability: Built to withstand the rigors of industrial use, Double Roll Granulators are durable and require minimal maintenance, reducing downtime and operational costs.
  • Versatility: Suitable for a wide range of materials, including powders, crystals, and fibers, these machines can be used across various industries.

Applications of Double Roll Granulators

Double Roll Granulators are versatile machines used in numerous industries. Some of the key applications include:

  • Fertilizer Production: Creating uniform granules for efficient nutrient distribution.
  • Chemical Processing: Granulating chemicals for ease of handling and improved reactivity.
  • Mining and Metallurgy: Granulating ores and other materials for further processing.
  • Pharmaceuticals: Producing granules for use in various pharmaceutical formulations.

Choosing the Right Double Roll Granulator

When selecting a Double Roll Granulator machine for your needs, consider the following factors:

  • Capacity: Ensure the machine can handle the volume of material you need to process.
  • Material Compatibility: Verify that the granulator is suitable for the specific materials you work with.
  • Maintenance Requirements: Look for machines that are easy to maintain to minimize downtime.
  • Cost: Balance the initial investment with the long-term operational benefits.


Double Roll Granulators are indispensable tools in the industrial sector, offering efficiency, consistency, and durability. Whether you’re producing fertilizers, chemicals, or minerals, these machines can significantly enhance your production process. By understanding how they work and the benefits they offer, you can make an informed decision and select the right granulator for your needs. If you want to understanding more knowledge about double roller granulators, you can visit my web:

The Art of Recyling Dust: Maximizing Sustainability in Fertilizer Granulating Production

As the demand for fertilizers continues to soar, it becomes crucial for the industry to adopt sustainable practices. In this blog, we will delve into the process of regranulating dust, exploring key steps such as collecting dust, mixing and adjusting moisture content, drying and cooling granular fertilizers, screening fertilizers, and finally packing fertilizers.

 Collecting Dust

During the fertilizer granulating process, dust is often generated. However, this dust contains valuable nutrients that can be recycled. To collect dust effectively, specialized dust collection systems equipped with filters and cyclones are employed. These systems efficiently capture the dust particles, minimizing waste and ensuring a cleaner production environment.

Mixing and Adjusting Moisture Content

To regranulate the collected dust, it is essential to blend it with other fertilizer components. This step involves mixing the dust with other raw materials and adjusting the moisture content to achieve the desired granulation properties. By carefully controlling the moisture content, the dust can be transformed into high-quality granular fertilizers.

Drying and Cooling Granular Fertilizers

fertilizer drying and cooling system

fertilizer drying and cooling system

After the granules are formed, the excess moisture must be removed to prevent clumping and ensure product stability. This is accomplished through the use of specially designed dryers that utilize hot air or a fluidized bed system. The granules are carefully dried and cooled, creating a uniform and consistent fertilizer product.

Screening Fertilizers

Rotary Screening Machine

Rotary Screening Machine

To ensure the desired size and quality of the granules, a fertilizer screener machine is implemented. This step involves passing the granules through a series of vibrating screens, which separate them into various sizes. This classification allows for the removal of any oversized or undersized granules, ensuring the homogeneity and efficiency of product.

Packing Fertilizers

Once the granular fertilizers have been screened, they are ready for packaging. The fertilizer packaging process involves the use of automated systems that accurately measure and fill bags or containers with the desired amount of fertilizer. Proper packaging is crucial to protect the quality and integrity of the fertilizers during transportation and storage.


By implementing an effective regranulation process, the fertilizer industry can significantly reduce waste and enhance sustainability. Collecting, mixing, adjusting moisture content, drying, cooling, screening, and packing are the key steps involved in regranulating dust during fertilizer granulating production. By adopting these practices, we can maximize resource utilization, minimize environmental impact, and contribute towards a greener and more sustainable future. You can click to read more.

How to use double roller pelletizer to make small scale limestone pellets


Introduction to Double Roller Pelletizer

A double roller pelletizer is a type of machine used to compress and shape various materials into pellets. It is commonly used in the production of fertilizer, animal feed, and other granular products. In this passage, we will focus on how to use a double roller pelletizer to make small scale limestone pellets.

What You Need to Know Before Starting

Before using a double roller pelletizer, it is important to understand the properties of limestone. Limestone is a sedimentary rock composed mainly of calcium carbonate. It is used in various industries, including construction, agriculture, and manufacturing. When making pellets, the limestone must be ground into a fine powder and mixed with a binder to help the pellets hold their shape.

Preparing the Limestone

The first step in making limestone pellets is to prepare the limestone. This involves grinding the limestone into a fine powder using a hammer mill or other grinding machine. The powder should be fine enough to pass through a 100-mesh screen. Once the limestone is ground, it needs to be mixed with a binder. Common binders used in pelletizing limestone include water, bentonite clay, and molasses.

Setting up the Double Roller Pelletizer

Once the limestone and binder are prepared, it is time to set up the double roller pelletizer. The machine consists of two rollers that rotate in opposite directions. The rollers are set close together, and the limestone mixture is fed between them. As the mixture passes through the rollers, it is compressed and shaped into pellets.

Operating the Double Roller Pelletizer

To operate the double roller pelletizer, you will need to adjust the settings to achieve the desired pellet size and shape. The gap between the rollers can be adjusted to control the size of the pellets. The speed of the rollers can also be adjusted to control the density of the pellets. Once the settings are adjusted, the limestone mixture can be fed into the machine. The pellets will come out of the other side and can be collected for further processing or packaging.

Finishing the Pellets

After the pellets are made, they will need to be dried and cured. This can be done using a drying oven, granulate dryer machine or by air drying. The drying process helps to harden the pellets and improve their durability. Once the pellets are dry, they can be packaged and stored for later use.


Using a double roller pelletizer to make small scale limestone pellets is a relatively simple process. It involves grinding the limestone into a fine powder, mixing it with a binder, and compressing it into pellets using the machine. By adjusting the settings on the pelletizer, you can control the size and density of the pellets. With the right equipment and knowledge, anyone can make high-quality limestone pellets for various applications.


Which Raw Materials Can Be Processed with Double Roller Extrusion Granulators for Optimal Results?

In the world of material processing, the quest for efficiency, reliability, and versatility often leads manufacturers and agricultural producers to seek innovative solutions. One such solution that stands out in the market for its ability to handle a wide range of materials is the double roller extrusion granulator. This machine, designed to press and compact materials into granules, has become increasingly popular due to its effectiveness in optimizing the granulation process.

What Raw Materials Can Be Optimally Processed Through Dry Granulation Technology?

Dry granulation technology, as utilized by double roller extrusion granulators, offers a unique approach to material processing. This method does not require the addition of liquids, making it an ideal choice for materials that are sensitive to moisture or where drying would be impractical. But what types of raw materials stand to benefit the most from this process?

1TPH Model Double Roller Press Granulator

1TPH Model Double Roller Press Granulator

The Ideal Raw Materials for Double Roller Press Granulation

  1. Compost: Compost, rich in organic matter, can be challenging to granulate due to its variable moisture content. However, the double roller extrusion granulator can effectively compact compost into uniform granules, enhancing its market value and ease of application.
  2. Gypsum: Gypsum’s powdery nature makes it difficult to handle and apply. Through the compacting capabilities of the double roller granulator, gypsum can be transformed into easy-to-handle granules, improving its utility in construction and agriculture.
  3. Livestock Manure: The conversion of livestock manure into granulated form through dry granulation technology not only facilitates easier handling and transportation but also reduces odor and improves nutrient availability.
  4. Bio-Sludge: Processing bio-sludge into granular form enhances its disposal options and potential use as a soil conditioner. The roller extrusion granulator can effectively handle the unique properties of bio-sludge, offering an environmentally friendly solution to waste management.

    raw material for roller compact granulation

    raw material for roller compact granulation

Yushunxin’s Double Roller Extrusion Granulator: A Model of Versatility and Efficiency

As the industry seeks machines that can handle a diverse range of materials, Yushunxin’s double roller compact pelletizer emerges as a leading choice. Boasting a design that accommodates the peculiarities of various materials, from organic waste to mineral powders, this machine demonstrates exceptional versatility. Its capability to process materials without the need for liquid binders sets it apart, allowing users to achieve optimal granulation results while maintaining the integrity of the processed materials.

Moreover, the granulator’s efficiency in converting raw materials into uniform, market-ready granules underscores its value in both agricultural production and beyond. The adaptability of Yushunxin’s machinery to a broad spectrum of materials underscores the potential for applications not just in agriculture but also in sectors like waste management, recycling, and bioenergy.

2T-H Roller Compact Granulator for NPK Pellets

2T-H Roller Compact Granulator for NPK Pellets


The double roller extrusion granulator represents a pivotal advancement in material processing technology. Its ability to handle a wide array of raw materials, from compost and gypsum to livestock manure and bio-sludge, highlights its relevance in today’s diverse industrial landscape. With models like YSX’s extruder granulator leading the way, the future of material processing looks promising. This machinery not only optimizes the granulation process but also opens new avenues for sustainable material management across various industries. Thus, you can visit this website for more details:

Why Are Double Roller Extrusion Granulators Ideal for Small-Scale Farmers?

In the realm of agriculture, one cannot overemphasize the importance of efficient fertilization. Small-scale farmers, in particular, grapple with numerous challenges, ranging from limited resources to the pressing need for sustainable practices. Effective fertilization strategies are crucial for these farmers, as they greatly influence crop yield and quality. As they navigate through these challenges, the quest for suitable equipment that can support their endeavors becomes paramount.

Advantages of Double Roller Extrusion Granulation Technology

Among the various granulation technologies available, double roller extrusion granulation stands out for its simplicity and effectiveness. This process involves the dry granulation of powdery materials, which is achieved by passing them between two counter-rotating rollers that compress the material into a compacted state. The result is dense, uniformly sized granules that are ideal for even distribution in the field.

1TPH Model Double Roller Press Granulator

1TPH Model Double Roller Press Granulator

Why Double Roller Extrusion Granulators are Suitable for Small-scale Operations?

Small-scale farmers benefit from equipment that is not only effective but also easy to manage and maintain. Double roller extrusion granulators fulfill these requirements by offering a straightforward operation with minimal moving parts. This translates to reduced maintenance and a lower likelihood of operational downtime. Furthermore, the granulation process does not require the addition of liquid binders, making it an economical and cleaner choice for farmers who have limited resources.

2T-H Roller Compact Granulator for NPK Pellets

2T-H Roller Compact Granulator for NPK Pellets

The Role of Raw Material Flexibility in Farming Efficiency

One of the key features of a good granulation system is its ability to handle a variety of raw materials. Small-scale farmers often have access to diverse organic matter that can serve as fertilizer, including animal manure, agricultural waste, and compost. A granulator that can process these materials into a uniform product helps farmers utilize locally available resources, thus reducing dependency on commercial fertilizers and promoting a more sustainable approach to agriculture.

Yushunxin’s Approach to Empowering Small-Scale Farmers

Among manufacturers of granulation equipment, Yushunxin has tailored its double roller press granulator to meet the needs of small-scale farmers. By understanding the unique challenges faced by these agricultural practitioners, Yushunxin has designed a machine that emphasizes ease of use, maintenance simplicity, and versatility in handling various raw materials.

Features of Yushunxin’s Roller Compact Granulator

The Yushunxin roller extrusion granulator comes equipped with features that ensure reliability and effectiveness. Its robust construction minimizes wear and tear, while the precision-engineered rollers guarantee a consistent granule size. This results in more accurate application rates and efficient use of materials. Additionally, the granulator operates with low energy consumption, keeping operational costs down for farmers.

Environmental Benefits of Using Yushunxin Granulators

In the current agricultural climate, the emphasis on eco-friendly practices is paramount. The double roller compact pelletizer aligns with these values by facilitating the use of organic materials in the granulation process. This not only reduces the carbon footprint associated with synthetic fertilizers but also improves soil health through the incorporation of organic matter.


In conclusion, for small-scale farmers looking to improve their fertilizer application techniques and embrace a more sustainable farming model, the Yushunxin’s granulator presents an ideal solution. With its combination of efficiency, durability, and environmental benefits, this piece of equipment stands as a wise investment for those aiming to optimize their agricultural operations. You can visit:

How to Make High-quality NPK Fertilizer Granules?

In the realm of fertilizer production, the quality of the end product is pivotal. It dictates not just the effectiveness of the fertilizer but also the efficiency of production. Farmers and agricultural professionals continuously seek high-quality NPK fertilizer to ensure the best yield from their crops. One innovative solution that has emerged is the use of dry granulation technology, particularly through the mechanism commonly known as the double roller extrusion granulator.

What Is The Principle of Roller Compact Granulation Machine?

This method operates on the principle of pressing raw materials into a solid, dense form. The technology involves two rollers that move in opposite directions, exerting immense pressure on the raw materials, which in turn formulates granules without the need for additives or further processes. This eco-friendly approach not only maximizes resource utilization but also curtails production costs.

The roller press machine stands as a cornerstone in producing NPK fertilizer due to its proficiency in compacting materials. The raw materials, which typically include nitrogen, phosphorus, and potassium, are fed into the machine where they are condensed under high pressure. The resulting product is a compact, homogeneous, and easy-to-handle granule, ideal for agricultural applications.

1TPH Model Double Roller Press Granulator

1TPH Model Double Roller Press Granulator

What Is The Applications of This Roller Compact Pelletizing Technique?

While discussing the potential of the double roller extrusion granulator, it is imperative to consider the variety of raw materials suitable for the process. These can range from ammonium sulfate, ammonium nitrate, and urea, to potassium chloride and phosphate rock. The versatility of the machine allows for a broad spectrum of inputs, making it a flexible solution for fertilizer production.

While the primary focus of NPK fertilizers is agricultural production, the versatility of double roller granulators extends to other industries as well. Industries such as mining plants, chemicals, and environmental protection can benefit from this advanced granulation technology. By adjusting the formulation and process parameters, manufacturers can tailor the granules for specialized applications such as controlled-release fertilizers, pigments, fuels, and water treatment compounds.

raw material for roller compact granulation

raw material for roller compact granulation

Complementary Equipment in The NPK Fertilizer Production Line

In the realm of fertilizer production, the double roller granulator stands out as a reliable and efficient piece of equipment. Its robust construction, ease of operation, and minimal maintenance requirements make it a preferred choice for manufacturers seeking high-quality granulation solutions. Additionally, the compact design of the double roller granulator allows for seamless integration into NPK fertilizer production lines, optimizing efficiency and productivity.

In any fertilizer production line, the double roller extrusion granulator is merely one component of a larger system. For an operation to be fully optimized, other relevant equipment, such as mixers, dryers, and screening machines, plays a critical role in ensuring the quality and consistency of the NPK fertilizer produced.

Equipment Selection of Simple NPK Fertilizer Extrusion Granulation Line

Equipment Selection of Simple NPK Fertilizer Extrusion Granulation Line

When seeking a trusted partner for fertilizer production equipment, it is advisable to consider providers with a strong track record and a reputation for excellence. Yushunxin is a reputable manufacturer known for its state-of-the-art fertilizer production equipment, including the double roller extrusion granulator. With a commitment to innovation and quality, Yushunxin’s granulation solutions empower manufacturers to streamline their production processes and enhance product quality. By incorporating Yushunxin’s double roller granulator into your production line, you can achieve consistent, high-quality NPK fertilizers for various applications.

In conclusion, the utilization of a double roller granulator in fertilizer production offers numerous benefits ranging from enhanced product quality to expanded application areas. By harnessing the capabilities of this advanced equipment, manufacturers can optimize their production processes and meet the evolving demands of various industries. Yushunxin’s double roller granulator presents a compelling solution for manufacturers seeking to elevate their fertilizer production capabilities and deliver superior products to the market. You can visit this website for more details:

What granulators can make NPK fertilizer pellets

NPK fertilizer, composed of nitrogen (N), phosphorus (P), and potassium (K), is essential for plant growth and agricultural productivity. The process of converting raw materials into usable NPK fertilizer pellets is facilitated by granulation equipment, commonly referred to as granulators. Below, we explore the various granulators that can produce NPK fertilizer pellets and how they operate.

Types of Granulators for NPK Fertilizer Production

Rotary Drum Granulator

Rotary drum granulators are one of the most common pieces of equipment used in large-scale NPK fertilizer production. As the name suggests, this granulator is a large rotating drum that combines the raw materials under high heat and tumbling action. The rotary motion helps to form round, dense pellets, which are then hardened through a drying and cooling process. This method is favored for its high efficiency and ability to produce large quantities of fertilizer pellets.

Rotary Drum Pelletizer for npk fertlizer

Rotary Drum Pelletizer for npk fertlizer

Disc Pan Granulator

The disc pan granulator is another popular choice for NPK fertilizer production. It features a round disc-like pan with angled sides. Raw materials are fed into the pan, where they are mixed and rotated. The rotation motion causes the materials to aggregate and form pellets. The size of the pellets can be adjusted by altering the angle of the disc and the rotational speed. Disc pan granulators are known for their versatility and ability to produce uniform pellets.

water spray with pan granulation

water spray with pan granulation

Double Roller Extrusion Granulator

The double roller extrusion granulator operates without the need for drying processes. It utilizes two counter-rotating rollers with moulds that compact the raw materials into a sheet or strip. Once compacted, the material is then cut into desired pellet sizes. This type of granulator is energy-efficient and particularly suitable for producing high-density NPK fertilizer pellets.

compound npk fertilizer making from double roller granulator

compound npk fertilizer making from double roller granulator

Ring Die Granulator

Ring die granulators are used for making organic fertilizer pellets but can also be adapted for NPK fertilizer. Raw materials are fed into the granulator, where they are pressed through a ring die by rollers. The extruded pellets are then cut into the desired size by a sharp cutter. This method is suitable for creating uniform pellets and can be used for both small-scale and large-scale production.

Advantages of Granulating NPK Fertilizer

Enhanced Efficiency of Nutrient Release

Granulating NPK fertilizers ensures a more controlled and uniform release of nutrients when applied to the soil. This efficiency helps to prevent nutrient loss and improves the uptake by plants.

Improved Physical Properties

Pelletized NPK fertilizers have better physical properties compared to powders, such as reduced dust, improved flowability, and ease of handling and application. This leads to a more convenient product for both manufacturers and end-users.

Customizable Nutrient Ratios

Granulation allows manufacturers to create fertilizer pellets with specific NPK ratios tailored to different crop needs. This customization ensures that plants receive the optimal nutrient balance for growth.


High-quality NPK fertilizer pellets are crucial for modern agriculture, and selecting the appropriate granulator is key to successful fertilizer production. Whether through a rotary drum, disc pan, double roller extrusion, or ring die granulator, these machines provide various methods to meet the demands of the fertilizer industry. Each granulator comes with its advantages, making it important to choose the right one for specific production requirements. With the right granulation equipment, manufacturers can produce NPK fertilizer pellets that contribute significantly to the efficiency and productivity of agricultural practices. And we can also provide you with other compound fertilizer making lines for your choice.

NPK fertilizer manufacturing process

The NPK Fertilizer Manufacturing Process

Fertilizers are key to enhancing soil fertility and boosting crop yields. Among the most popular fertilizers are NPK blends, which contain varying ratios of nitrogen (N), phosphorus (P), and potassium (K). The manufacturing of NPK fertilizer is a complex process that combines these three nutrients in a single, granular form.

Raw Material Sourcing

The process begins with the sourcing of raw materials. Nitrogen is typically derived from ammonia, phosphorus from phosphate rock, and potassium from potash. These materials are critical for creating a balanced fertilizer that can cater to the nutritional needs of various crops.

The Granulation Process

Once the raw materials are procured, they are transported to the production facility where the granulation process begins. This involves the application of a high-temperature treatment, where the materials are partially melted and then cooled to form a solid mass. The resulting product is then crushed into smaller, uniform particles. There are types of granulators for your choice. Such as disc pelletizer machine, rotary drum granulation equipment and extrusion granulator.

Blending the Nutrients

After granulation, the particles containing different nutrients are thoroughly mixed to create a uniform blend. This blending is a crucial step as it ensures that each granule has the correct proportion of nitrogen, phosphorus, and potassium.

Formulating Different NPK Ratios

Different crops require different NPK ratios. Therefore, the blended granules are formulated into various NPK ratios to suit specific agricultural needs. For instance, a common ratio for many crops is 20-20-20, which represents an equal percentage of each nutrient. So we can also provide you with 20:10:10 npk fertilizer manufacturing process and 17:17:17 npk fertilizer making line.

Quality Control

Quality control is a vital part of the manufacturing process. Samples from each batch of fertilizer are tested in a laboratory to ensure that they meet the required nutrient specifications. This step also checks for the presence of heavy metals and other contaminants.

Coating for Efficiency

The granules may then be coated with substances that reduce moisture absorption and prevent caking, which helps maintain the quality of the fertilizer during storage and handling. In some cases, coatings are also used to control the release of nutrients once the fertilizer is applied to the soil, improving its efficiency.


The final step in the manufacturing process is packaging. The NPK fertilizer is packed in bags that are resistant to weather and handling to ensure the product reaches the end-user without any loss of quality.

Delivery and Application

Once packaged, the NPK fertilizer is distributed to agricultural suppliers or directly to farms. Farmers then apply the fertilizer to their fields, often using specialized equipment to ensure even distribution and optimal soil incorporation.

Environmental Considerations

The manufacturing of NPK fertilizers also comes with an environmental aspect. Manufacturers must adhere to stringent regulations to minimize emissions and waste. Additionally, research is ongoing to develop more sustainable and eco-friendly manufacturing processes that reduce the carbon footprint of fertilizer production.

Through the careful orchestration of sourcing, granulation, blending, and quality control, the NPK fertilizer manufacturing process ensures that farmers around the world can sustainably produce the crops that feed our growing population.



How to make limestone pellets

Subtitle 1: Understanding Limestone Pellets

Limestone pellets are a versatile and efficient material widely used in various industries, from agriculture to construction. These pellets are made by compacting crushed limestone into small, uniform particles. In this guide, we will delve into the step-by-step process of making limestone pellets, highlighting key considerations and best practices.

Subtitle 2: Selecting Quality Limestone

The first crucial step in the pellet-making process is selecting high-quality limestone. Opt for limestone with low impurities and a consistent chemical composition. This ensures that the resulting pellets will possess the desired properties for their intended applications. Conduct thorough testing and analysis to determine the limestone’s suitability for pelletization.

Subtitle 3: Crushing and Grinding

Once the ideal limestone is chosen, the next step involves crushing and grinding the raw material into a fine powder. This process increases the surface area of the limestone particles, enhancing their reactivity during pelletization. Various crushing and grinding equipment can be employed, depending on the scale of production and specific requirements.

Subtitle 4: Pelletization Process

The pelletization process involves agglomerating the powdered limestone into small pellets. This is typically achieved using a pelletizing machine, which can vary in design and functionality. During this stage, it’s crucial to add a binding agent to facilitate the formation of durable pellets. Common binders include bentonite and lignosulfonates, chosen based on their compatibility with limestone. For large scale production, you can use rotary drum granulator machinery. And if you want to make small scale limestone pellets, disc pelletizer machinery and double roller granulation are the best choice for you.

Subtitle 5: Adjusting Moisture Content

Proper moisture content is essential for successful pelletization. The right balance of moisture ensures that the limestone particles adhere together without causing excessive stickiness or dusting. Carefully monitor and control the moisture content throughout the pelletization process to achieve optimal pellet quality.

Subtitle 6: Drying the Pellets

After the pellets are formed, they need to undergo a drying process to remove excess moisture. Drying is typically done using industrial dryers, and the temperature and duration must be carefully controlled to prevent over-drying or under-drying. Proper drying contributes to the strength and stability of the final limestone pellets.

Subtitle 7: Quality Control and Testing

To guarantee the quality of the limestone pellets, it’s crucial to implement a robust quality control and testing regimen. Perform regular checks on pellet size, density, and chemical composition. Conduct strength tests to ensure the pellets can withstand handling and transportation without breaking apart.

Subtitle 8: Packaging and Storage

Once the limestone pellets pass quality control, they are ready for packaging. Choose packaging materials that protect the pellets from moisture and external contaminants. Properly labeled packaging should include essential information about the product, such as pellet size, composition, and recommended storage conditions.

Subtitle 9: Applications of Limestone Pellets

Limestone pellets find applications in a wide range of industries, including agriculture, environmental remediation, and construction. Understanding the specific requirements of each application is crucial for tailoring the pellet production process to meet diverse needs.

Subtitle 10: Environmental Considerations

Lastly, it’s important to consider the environmental impact of limestone pellet production. Implement sustainable practices, such as using energy-efficient equipment and minimizing waste. Additionally, explore opportunities for recycling or repurposing by-products generated during the pelletization process.

By following these steps and considering the outlined factors, you can successfully produce high-quality limestone pellets tailored to the unique demands of various industries. And we can also offer limestone powder granulator for you.

How Disc Granulators Make Organic Waste into Granules?

Disc granulator plays a crucial role in the process of transforming organic waste into granules. The granulation process involves several steps that leverage the design and functionality of this granulation machine. Here’s a step-by-step guide on how disc granulator makes organic waste into granules.

1. Feedstock Preparation

The process begins with the preparation of organic waste feedstock. This can include a variety of materials such as kitchen waste, crop residues, and green waste. It’s important to ensure that the feedstock is properly sorted and any non-organic contaminants are removed. You may need organic fertilizer crusher, dewatering machine or compost fermentation equipment.

Dewatering Machines

Dewatering Machines

2. Feeding the Materials

The prepared organic waste is then fed into the pan granulator. The feeding mechanism may vary depending on the specific design of the granulator, but typically, a conveyor belt or a feeding system from our company is used to introduce the organic waste onto the rotating disc.

The Feeding Methods

The Feeding Methods

3. Rotating Discs Action

The heart of the disc granulator is the rotating disc or discs. These discs are set at an angle and are connected to a central shaft. As the discs rotate, they create a tumbling motion for the organic waste materials.

4. Spraying Liquid Binder (Optional)

In some cases, a liquid binder may be sprayed onto the organic material during the granulation process. This binder can be a solution containing water or other substances that help in agglomerating the organic powder into granules.

5. Granulation and Agglomeration

The rotating motion of the discs causes the organic waste materials to agglomerate and stick together. This agglomeration process is essential for forming granules. The rotating discs create a dynamic environment where the particles collide and adhere, forming spherical or cylindrical granules.

Here are the details of pelletizing disc!

disc pelletizer

disc pelletizer

6. Adjustable Disc Angles

Disc granulators often feature adjustable disc angles. This allows operators to control the size and density of the granules produced. By altering the angle of the discs, the residence time of the material on the discs can be adjusted, impacting the final characteristics of the granules.

7. Particle Size Control

The speed of the rotating discs and the size of the screen or grate beneath the discs contribute to controlling the particle size of the granules. Smaller particles pass through the screen, while larger ones are retained and continue to grow through additional collisions.

8. Collection and Screening

As the organic waste is transformed into granules, they are collected and screened to separate any undersized or oversized particles. This screening step ensures that the final product meets the desired specifications. You may need SX rotary screening machine to help you finish the granulation process.

Rotary Screening Machine

Rotary Screening Machine

9. Drying (Optional)

Depending on the moisture content of the organic waste and the desired characteristics of the final granules, a drying step may be employed to reduce moisture levels. This can be crucial for the storage and application of the organic fertilizer. You can select drum dryer to reduce this pellets’ moisture.

10. Packaging and Storage

The final step involves packaging the granulated organic fertilizer for distribution or storage. Proper packaging ensures the longevity and quality of the organic fertilizer product. You are available to choose different kinds of automatic bagging machines according to your production needs.

In summary, disc granulators make organic waste into granules by leveraging the mechanical action of rotating discs, creating a dynamic environment for agglomeration. This controlled process results in the formation of uniform and high-quality organic fertilizer granules ready for use in sustainable agriculture practices. Visit this page: for more information.