Fertilizer granulators: How to adapt to the special production requirements of functional fertilizers?

fertilizer granulator Oct 23, 2025

As the fertilizer industry upgrades toward “precision and functionalization,” demand for functional fertilizers such as slow-release fertilizers, biofertilizers, and trace element compound fertilizers has surged. The production of these fertilizers places special demands on granulators, balancing functional retention and granule formation.

For slow-release fertilizer production, fertilizer granulators must meet the dual requirements of “granule formation” and subsequent coating. For example, when producing sulfur-coated slow-release fertilizers, the granulation process requires producing base granules with a smooth surface and uniform hardness. The “rolling forming” feature of a rotary drum granulator is perfectly suited for this purpose. By controlling the drum speed (8-12 rpm) and the amount of binder used, the granules are naturally rounded and smooth. Some granulators also feature a “pre-cooling section” at the discharge port to reduce the granule temperature to below 30°C, paving the way for subsequent coating and preventing the coating material from melting and becoming ineffective due to high temperatures.

For compound fertilizers containing trace elements, fertilizer granulators must address the issue of uneven trace element distribution. These fertilizers contain low concentrations of trace elements such as zinc, boron, and iron. Inhomogeneous mixing can lead to nutrient deficiencies in some granules. In this case, the low-speed extrusion design of a flat die granulator is optimal. After thoroughly mixing the trace elements with the base raw materials in a twin-shaft premixer, the low-speed rollers slowly extrude the granules into shape, minimizing material separation and ensuring a trace element content variation of ≤0.1% per granule, thus preventing functional deficiencies.

For biofertilizers, the granulator’s low-temperature performance is crucial. Flat die and disc granulators utilize a low-friction, no-high-temperature extrusion design to maintain a temperature within the granulation chamber below 40°C, ensuring the survival rate of the microbial inoculant.

Reducing costs and improving efficiency: Several core advantages of disc granulators

fertilizer granulator Oct 23, 2025

For manufacturing companies, equipment performance and cost control are crucial. Disc granulators excel in both areas, making them a powerful tool for enhancing competitiveness.

First, they offer exceptional energy efficiency. Compared to traditional granulation equipment, they consume less energy. Long-term use can save companies significant energy costs and effectively reduce production and operating costs. Second, disc granulators offer high production efficiency and enable continuous production. Depending on production needs, hourly output can range from several tons to tens of tons, meeting the production needs of companies of all sizes and helping them quickly complete production tasks.

Disc granulators offer even greater advantages in granulation quality. They produce highly uniform, strong, and resistant granules, ensuring high product quality for fertilizers, mineral powders, and chemical raw materials. Furthermore, they are easy to operate, requiring minimal training for operators to master their operation. This reduces production risks associated with complex operations. Maintenance is also relatively simple, further reducing management costs.

NPK fertilizer granulator machine: A key equipment for efficient fertilizer production

fertilizer granulator Oct 23, 2025

In the process of agricultural modernization, NPK compound fertilizer, containing the three core nutrients of nitrogen, phosphorus, and potassium, has become a crucial factor in increasing crop yields. As the core equipment for converting NPK raw materials into practical fertilizers, NPK fertilizer granulator machines are profoundly impacting the fertilizer industry’s production efficiency and product quality.

The core value of NPK fertilizer granulator machines lies in resolving raw material form issues. Through the granulator’s physical processing, powdered raw materials are extruded and shaped into uniform granules. This not only improves fertilizer stability, facilitating long-distance transportation and long-term storage, but also ensures a slow release of nutrients during application, improving crop absorption.

Furthermore, NPK fertilizer granulator machines offer significant advantages: high efficiency and adaptability. Modern granulation equipment can adjust parameters based on different raw material ratios to meet the production needs of various NPK compound fertilizers, including those high in nitrogen, phosphorus, and potassium. Furthermore, the equipment’s energy consumption is continuously optimized, increasing production speed while reducing operating costs.

For the fertilizer industry, NPK fertilizer granulator machines are not only a production tool but also a key to enhancing product competitiveness. With the growing demand for high-efficiency fertilizers in agriculture, NPK fertilizer granulator machines will undoubtedly continue to play a vital role in driving the fertilizer industry towards greater efficiency and higher quality.

Oil Palm Circular Fertilization: Closing the Nutrient Loop

fertilizer granulator Oct 22, 2025

The concept of circular fertilization in oil palm cultivation represents a sustainable approach where agricultural waste is transformed into valuable resources, creating a closed-loop system that benefits both the crop and the environment. At the heart of this system lies the strategic utilization of Oil palm empty fruit bunch (OPEFB) and other palm processing residues as primary raw materials for organic fertilizer manufacturing. These biomass byproducts, rich in organic matter and essential nutrients, serve as the foundation for a comprehensive organic fertilizer production line that completes the nutrient cycle within palm plantations.

In the transformation process, specialized granulation equipment plays a crucial role in converting processed palm biomass into uniform, easy-to-apply fertilizer products. The most suitable fertilizer granulator for this application is typically an organic fertilizer granulator specifically designed to handle the fibrous nature of OPEFB material while producing high-quality granules with optimal nutrient retention and controlled-release properties. This integrated approach not only reduces waste disposal challenges but also creates a sustainable source of organic nutrition that enhances soil health and promotes long-term oil palm productivity, effectively closing the nutrient loop through innovative agricultural waste valorization.

The Potassium Connection

Oil palm (Elaeis guineensis) has a remarkable relationship with potassium – this essential nutrient drives its growth and fruit production. During development, oil palms accumulate significant potassium reserves in their tissues, particularly in fronds and fruit bunches. An average mature oil palm tree can contain 2-3 kg of potassium in its biomass, with empty fruit bunches (OPEFB) representing a concentrated source of this valuable nutrient.

From Waste to Resource

Traditionally viewed as milling waste, oil palm empty fruit bunches are now recognized as agricultural gold. When processed through composting, these organic materials transform into nutrient-rich fertilizer. The composting process typically takes 60-90 days, involving microbial breakdown that converts raw biomass into stable organic matter. This natural transformation creates a slow-release fertilizer that provides balanced nutrition to oil palms.

Soil Regeneration Benefits

Beyond potassium supplementation, OPEFB compost delivers multiple soil health benefits. It improves soil structure by increasing porosity and water retention capacity – particularly valuable in tropical soils prone to compaction and nutrient leaching. The organic matter enhances microbial diversity, creating a thriving soil ecosystem that supports plant health naturally. Regular application can increase soil organic matter by 15-25% over three years.

Sustainable Agriculture Practice

This circular approach represents sustainable agriculture at its best. By returning nutrients to the plantation, farmers reduce dependence on synthetic fertilizers, lowering production costs and environmental impact. The practice also addresses waste management challenges in palm oil mills, where OPEFB typically constitutes 20-25% of processing waste. Implementation of this system can reduce synthetic potassium fertilizer requirements by 30-40% while maintaining yield quality.

Global Implications

For tropical regions cultivating oil palms, this closed-loop fertilization model offers economic and environmental advantages. It demonstrates how agricultural byproducts can be valorized while improving soil health and reducing chemical inputs. As global agriculture moves toward more sustainable practices, the oil palm industry’s experience with OPEFB composting provides valuable insights for other perennial crop systems seeking to optimize nutrient cycling and soil management.

Large wheel compost turning machine: Why can it ferment efficiently?

fertilizer granulator Oct 22, 2025

Equipment Overview

The large wheel compost turner represents a crucial fertilizer production machine specifically designed for material fermentation processing, primarily serving large-scale organic and compost fertilizer machine operations. This essential equipment within the equipments required for biofertilizer production features a massive wheel structure with diameters reaching several meters that rotates to drive specialized turning teeth along its perimeter.

Operating Mechanism

The core principle of this large wheel compost turning machine involves the rotating wheel creating a circular motion through the material pile. Through combined centrifugal force and mechanical action of the turning teeth, the machine systematically lifts, disperses, and re-accumulates organic materials. This process ensures optimal aeration, temperature and humidity regulation, and significantly accelerates microbial decomposition and maturation – a fundamental pretreatment stage for various production lines including the npk fertilizer production line and disc granulation production line.

Integrated Production Systems

Following the composting phase, the processed materials typically proceed to granulation stages using equipment like the drum granulator or specialized double roller press granulator to form finished fertilizer products. The large wheel compost turner thus serves as the foundational processing unit that enables efficient organic matter preparation for subsequent manufacturing stages across diverse fertilizer production systems, making it an indispensable component in modern organic fertilizer manufacturing infrastructure.

Working Principle

The large wheel compost turner achieves efficient turning operations through its unique rotating wheel design. When the equipment operates, the large wheel rotates at a stable speed, and specialized turning teeth installed on the wheel edge sequentially cut into the material pile. Under centrifugal force, the material is thrown into the air and redistributed, creating a uniform mixing effect. This operation mode not only ensures adequate aeration but also effectively breaks up material clumps, promoting even distribution of heat and moisture.

Technical Advantages

This equipment utilizes a continuously rotating large wheel design, allowing for wide coverage and high efficiency in a single turning operation. Compared to traditional trough-type or crawler-type compost turners, it is more suitable for large-scale windrow fermentation in organic fertilizer production bases with a capacity of 10,000 tons or more, significantly reducing labor and time costs for large-scale fermentation.

High Processing Capacity

The large wheel design enables a single processing width of 3-6 meters and processing depth of 1.5-2.5 meters, with hourly processing capacity reaching 200-500 tons. The work efficiency is 2-3 times that of traditional equipment. Continuous operation mode reduces equipment idle time, significantly improving production efficiency.

Uniform Fermentation Effect

The circular motion turning method ensures comprehensive, multi-angle material turning, with material mixing uniformity exceeding 98%. This uniform turning effect helps maintain fermentation pile temperature stability and promotes balanced development of microbial communities.

Low Operating Costs

The large wheel structure simplifies the transmission system, reducing equipment maintenance frequency and energy consumption. Compared to traditional turning equipment, it can save over 30% in energy consumption and reduce maintenance costs by 40%, making it particularly suitable for large production bases requiring long-term continuous operation.

Strong Adaptability

The equipment can adapt to various organic materials, including livestock manure, crop straw, sludge, and other raw materials with different characteristics. By adjusting wheel speed and travel speed, turning effects can be optimized for different material properties.

Application Scenarios

The large wheel compost turner is particularly suitable for large-scale organic fertilizer production enterprises with annual output exceeding 10,000 tons, municipal sludge treatment centers, large-scale breeding bases, and other facilities. Its large-scale processing capacity can meet the needs of modern organic waste resource utilization, providing reliable technical support for the development of circular agriculture.

Development Prospects

With the rapid development of organic agriculture and increasing environmental protection requirements, the large wheel compost turner is becoming the preferred equipment for large organic fertilizer production enterprises due to its excellent processing efficiency and stable operating performance. In the future, with the integration of intelligent technology, this equipment will achieve greater breakthroughs in automated control and precision operations.

NPK Production Line: How to Customize Crop Nutrition?

fertilizer granulator Oct 22, 2025

In the precision engineering of modern agriculture, the npk fertilizer production line acts like an intelligent formulator, tailoring the most suitable nutritional solutions for different soils and crops. This sophisticated system for the manufacturing of npk fertilizer integrates automation, intelligence, and precision, redefining production standards through advanced npk manufacturing technologies.

Core Equipment Integration

The comprehensive npk fertilizer manufacturing process begins with precise material preparation using specialized equipment like the npk blending machine and fertilizer mixer machine, ensuring homogeneous raw material distribution. The heart of the npk production process lies in the granulation phase, where operators can choose between advanced equipment such as the npk fertilizer granulator machine, versatile disc granulator machine, or specialized npk granulation machine. For specific applications requiring physical blending, the bulk blending fertilizer machine or npk bulk blending machine provides efficient alternative solutions.

Intelligent Production Workflow

Imagine every step from raw material proportioning to finished product packaging being precisely calculated and automatically controlled by the integrated npk fertilizer machine systems. The sophisticated fertilizer granulation process, whether utilizing a high-efficiency npk fertilizer granulator or precision disc granulator, ensures consistent particle size and nutrient distribution. This complete npk fertilizer production line not only achieves efficient production but also flexibly adjusts formulations according to soil characteristics and crop requirements in different regions, truly realizing the scientific concept of “fertilizing according to soil and crops” through optimized npk manufacturing processes.

Perfect Harmony of Ten Core Equipment

Automatic Batching Machine

Precisely controls various raw material ratios to ensure formulation accuracy

Belt Conveyor

Achieves seamless material transfer between processes

Mixer

Ensures thorough and uniform mixing of various raw materials

Crusher

Processes lump materials in raw materials to ensure uniform particle size

Rotary Drum Granulator

Transforms mixed materials into uniform fertilizer pellets

Dryer

Removes excess moisture from pellets to improve product stability

Cooler

Rapidly cools pellets to ensure product quality

Screening Machine

Grades and screens to ensure pellet uniformity

Coating Machine

Adds protective coating to pellets to enhance product performance

Automatic Packing Machine

Achieves automated packaging of finished products to improve efficiency

Outstanding Production Advantages

The NPK fertilizer production line demonstrates multiple advantages through its unique design concept and advanced technical configuration:

Wide Raw Material Adaptability

Suitable not only for compound fertilizer granulation but also for various materials including pharmaceuticals, chemicals, and feed

Flexible Formulation Adjustment

Precisely adjusts nutritional formulations according to local soil and crop requirements

Efficient Agglomeration Process

Utilizes advanced agglomeration technology to ensure pellet quality and uniformity

Intelligent Control System

Achieves full-process automated control to improve production efficiency and stability

New type organic fertilizer granulator: Empowering green production in the fertilizer industry

fertilizer granulator Oct 22, 2025

Amid the rise of ecological agriculture and the continued surge in demand for organic fertilizer, new type organic fertilizer granulators, leveraging technological innovations from traditional equipment, have become key equipment for the fertilizer industry, addressing challenges in organic fertilizer granulation and promoting green production.

The most prominent advantage of the new type organic fertilizer granulator is its adaptability to organic fertilizer raw materials. Organic fertilizer raw materials, primarily derived from livestock and poultry manure, straw, and food waste, often exhibit large moisture fluctuations, high fiber content, and prone to clumping. By optimizing the conditioning system and granulation structure, the new equipment can flexibly adjust the raw material moisture and temperature. This allows for uniform granulation even with high-moisture, high-fiber raw materials, significantly improving granulation efficiency and effectively reducing raw material waste.

The new type organic fertilizer granulator is also known for its “green and efficient” design. By upgrading its transmission system and adding a dust collection device, the new equipment achieves low energy consumption and low pollution while improving production efficiency.

Furthermore, the new type organic fertilizer granulator can help enhance the competitiveness of organic fertilizer products. The organic fertilizer particles it produces have uniform density, moderate hardness, and are not easy to break; more importantly, the low-temperature granulation process of the new equipment can maximize the retention of beneficial microorganisms and active ingredients in the organic fertilizer, ensuring a longer-lasting fertilizer effect.

Fertilizer granulators contribute to efficient agricultural development

fertilizer granulator Oct 22, 2025

With the agriculture and fertilizer industries deeply intertwined, fertilizer form directly impacts fertilization effectiveness and industry efficiency. As the core equipment connecting fertilizer raw materials and finished products, fertilizer granulators are becoming a key driver of industry upgrades.

Fertilizer granulators transform powdered raw materials into uniform fertilizer granules through processes such as physical extrusion and conditioning. These granulated fertilizers are not only highly stable, making them suitable for long-term storage and long-distance transportation, but also enable a slow release of nutrients, extending the fertilizer’s effective lifespan and enabling more efficient crop absorption, thereby boosting agricultural production returns from the source.

Furthermore, the adaptability of fertilizer granulators meets the diverse needs of the industry. Whether producing organic fertilizers, compound fertilizers, or customized fertilizers for specific crops, the equipment can adapt to different raw material ratios by adjusting parameters. More importantly, modern fertilizer granulators continuously optimize energy efficiency, improving production efficiency while reducing energy consumption.

For fertilizer companies, fertilizer granulators are a powerful tool for enhancing product competitiveness. Against the backdrop of growing demand for high-efficiency fertilizers in agriculture, fertilizer granulators will undoubtedly drive fertilizer production towards greater efficiency, higher quality, and greater environmental protection.

From pretreatment to maturity! Standard operating procedures for a windrow compost turner

fertilizer granulator Oct 22, 2025

To maximize the performance of a windrow compost turner, a scientific and standardized operating process must be followed. The entire process of the windrow compost turner revolves around four key steps: raw material pretreatment, windrow accumulation, turning and fermentation, and determination of maturity.

Raw material pretreatment is fundamental. Collected organic materials must first be sorted to remove impurities such as metal and plastic. Livestock and poultry manure should be air-dried to a moisture content below 65%, and straw should be pulverized to 5-10 cm in length. The raw materials should then be mixed at a carbon-to-nitrogen ratio of 25-30:1. The carbon and nitrogen content can be adjusted by adding straw or manure, ultimately achieving a moisture content of 55%-60%. At this point, the material will clump when held and fall apart upon contact, achieving optimal fermentation conditions.
Next, the pre-treated raw materials are stacked into trapezoidal stacks at the fermentation site. These stacks are typically 3-5 meters wide at the base, 1.5-2.5 meters wide at the top, and 1-1.8 meters high. The stack length can be adjusted flexibly based on the site and production volume. A 1.5-2 meter passageway is left between the stacks to facilitate equipment access and ventilation.

Turning and tossing is a key step in fermentation. After starting the windrow compost turner, the depth of the tossing mechanism is adjusted according to the height of the stack, ensuring that the tossing teeth penetrate 10-20 cm into the bottom of the material. The initial fermentation lasts 1-3 days, with the first tossing occurring when the material temperature reaches 50-60°C. The high-temperature period lasts 4-10 days. When the temperature rises to 60-70°C, the stacks are tossed every 1-2 days to kill harmful bacteria. The cooling period lasts 11-20 days. When the temperature drops to 40-50°C, the stacks are tossed every 2-3 days to promote humus formation. The entire fermentation cycle lasts 15-25 days.

Finally, the material is judged by maturity. When the temperature is close to room temperature, the color is dark brown, the texture is loose, and there is no odor or earthy smell, it is considered mature and can be sent to the next stage for processing.

Double roller press granulators empower green fertilizer production

fertilizer granulator Oct 22, 2025

With the advancement of green agriculture, “environmental protection and resource utilization” have become core priorities in fertilizer production. Double roller press granulators (fertilizer compaction machines), with their outstanding environmental performance and resource utilization, have become key equipment for green fertilizer processing.

The double roller press granulator offers significant technological advantages in improving fertilizer quality. The fertilizer granules formed through physical extrusion have uniform density and high hardness, making them less prone to breakage and clumping during transportation and storage. More importantly, after application to the soil, these granular fertilizers release nutrients at a steady rate, extending their effective life and reducing the loss of nutrients such as nitrogen, phosphorus, and potassium through rainwater erosion.

The double roller press granulator’s environmental value is also reflected in its raw material processing and energy consumption control. The double roller press granulator can directly process agricultural waste such as fermented livestock and poultry manure, composted straw, and fruit and vegetable residues, transforming “waste” into high-quality organic fertilizer and achieving resource recycling. The equipment also eliminates the need for high-temperature drying, reducing emissions from coal or gas combustion. Its enclosed conveying design effectively controls dust spillage, improving the production environment.

Furthermore, its operation and maintenance requirements are low. Its simple structure and clear procedures allow workers to master the process after a short training period. Routine maintenance requires only regular inspection of the squeeze rollers for wear and cleaning of the feed channel, significantly reducing operational costs for small and medium-sized fertilizer companies.