How to scientifically maintain the double roller press granulator

fertilizer granulator Aug 18, 2025

As an important organic fertilizer production equipment, the double roller press granulator can always maintain efficient operation, extend its service life, and escort production. Mastering scientific maintenance methods can not only reduce the hidden dangers of failure, but also enable the equipment to output high-quality particles stably for a long time.

Daily maintenance needs to form a standardized process. Before starting the machine, in addition to checking the connection and fasteners of the components, it is necessary to focus on whether the feed port is unobstructed, remove possible foreign matter, and avoid material jamming and damage to the equipment after starting. During operation, in addition to paying attention to the rotation and sound of the rollers, it is also necessary to observe the temperature of the motor. If overheating occurs, the machine should be shut down to cool down to prevent the motor from burning. The cleaning work after shutdown should be thorough. A special brush can be used to clean the residual material in the roller texture, and compressed air can be used to blow the equipment gap to prevent the material from corroding the components after moisture and agglomeration.

Maintenance of key components must be accurate and in place. The parallelism of the rollers needs to be checked every time they run for a period of time. If there is an offset, it should be calibrated in time to ensure uniform extrusion force; when the surface is worn to a certain extent, it can be polished and repaired to extend the service life. Bearing lubrication requires the use of lubricating oil of suitable types, which should be refilled at least once a month. Before refilling, clean the impurities in the oil filling port to prevent contamination of the lubrication system. The chain of the transmission system should be regularly smeared with chain oil, and the gears should be checked for meshing. If abnormal noise or jamming is found, timely adjustments should be made to avoid affecting the granulation efficiency due to poor power transmission.

Well-maintained equipment can reduce downtime, maintain stable granulation efficiency and granule quality, and reduce long-term use costs. Choose a double roller press granulator and cooperate with scientific maintenance to make your organic fertilizer production line continue to be efficient and your profits more guaranteed.

How to improve the granulation rate of the disc granulator

fertilizer granulator Aug 18, 2025

The granulation rate of the disc granulator directly affects the production efficiency and quality of organic fertilizer. When processing organic fertilizer raw materials containing high fiber and impurities, the disc granulator can take the following measures to ensure the uniformity and granulation rate of the particles:

Pretreatment of raw materials: For raw materials with high fiber and many impurities, it is necessary to first remove large impurities and long fibers through crushing and screening to make the material texture more uniform, provide high-quality basic materials for granulation, and reduce granulation failure caused by uneven raw materials.

Adjust the disc parameters: According to the characteristics of the material, reasonably adjust the disc inclination angle and speed. If the angle is too small, the material is easy to accumulate; if the angle is too large, the material residence time is short. Too fast speed will cause the material to be thrown out due to excessive centrifugal force, and too slow speed will make it difficult to fully roll and agglomerate. By repeatedly debugging and finding the appropriate parameters, the material can form a stable rolling track in the disc and promote uniform growth of particles.

Adding binder: By increasing the spraying amount and uniformity of the binder, the bonding of the material can be improved, thereby improving the strength and uniformity of the particles.

Install screening device: Install drum screener machine in the fertilizer production line to separate unqualified particles and impurities in time, return them to the granulator for reprocessing, form a closed loop, reduce the waste of raw materials, and ensure the uniformity of the output particles.

Clean the equipment regularly: Clean the disc and the inside of the disc granulator regularly to prevent the accumulation of impurities from affecting the granulation effect.

Through these methods, the disc granulator can stably maintain a high granulation rate, improve the quality and efficiency of organic fertilizer production, and help produce high-quality granular fertilizer.

Flat Die Granulator: The Future of Biomass Pelletizing?

fertilizer granulator Aug 18, 2025

In the wave of pursuing sustainable energy, flat die granulators are quietly revolutionizing biomass pelletizing technology. How does this seemingly simple equipment transform loose materials like wood chips and straw into high-density energy pellets? Let’s uncover its technical secrets.

A flat die granulator is a type of organic fertilizer production machine, specifically designed to compress powdered organic materials into granules. Both the flat die granulator and organic fertilizer production machine are subsets of the broader category of fertilizer production machines, which encompass various equipment for manufacturing both organic and inorganic fertilizers.

Oblique Wheel Drive: The Engineering Marvel of Speed Synchronization

The core breakthrough lies in its innovative oblique wheel roller design. Through precise calculation, the equipment achieves perfect speed matching between rollers and die rings:

• Eliminates 90% of relative sliding friction in traditional designs
• Reduces energy consumption by over 40%
• Extends die lifespan by 2-3 times

The “Speed Synchronization Principle” has completely solved the long-standing wear problem in the industry, elevating flat die granulating technology to new heights.

Intelligent Pressure Adjustment: Handling Diverse Materials

Facing materials ranging from soft wood chips to hard straw, flat die granulators demonstrate remarkable adaptability:

• Central intelligent pressure adjustment system responds to material characteristics in real-time
• Special alloy rollers withstand up to 200MPa pressure
• Unique surface treatment improves wear resistance by 300%

Modular Design: The Perfect Multi-Functional Solution

With just 30 minutes for die replacement, the same equipment can produce 2-12mm pellets of different specifications. This flexible design enables users to:

• Quickly respond to market demand changes
• Significantly reduce equipment investment costs
• Cut downtime to 1/3 of traditional equipment

From oblique wheel drive to intelligent pressure adjustment, every detail of flat die granulators embodies the “efficiency first” design philosophy. In today’s rapidly developing global biomass energy sector, it’s becoming a key driver for industry transformation.

The key role and advantages of double roller press granulators in NPK fertilizer production lines

fertilizer granulator Aug 18, 2025

Double roller press granulators are central to modern NPK fertilizer production lines. In compound fertilizer manufacturing, this advanced granulation technology not only significantly boosts efficiency but also ensures the uniformity and stability of NPK fertilizer products.

Standout Advantages

1.Superior Energy Efficiency and Eco-Friendliness: Double roller press technology cuts energy use by 30%–50%, with zero wastewater or exhaust emissions during production—fully meeting environmental standards.

2.Adaptable to Diverse Formulations: Whether high-nitrogen, high-phosphorus, high-potassium blends, or specialized NPK fertilizers with trace elements, roller presses handle them reliably, effectively addressing limitations of traditional methods.

3.Excellent Granule Quality: Produces uniform granules (adjustable size: 2–5 mm), high strength (>10N crush resistance), and low moisture content (<2%), significantly enhancing market competitiveness.

4.Flexible Production Line Setup: Compact design allows integration into full NPK lines or standalone use for upgrading powdered fertilizers—ensuring quick return on investment.

5.Advanced Automation: Modern roller presses feature PLC control systems, enabling real-time monitoring of pressure, temperature, and output to guarantee consistent production and product quality.

Key Considerations When Choosing a Granulator

Top-tier double roller press granulators should include wear-resistant alloy roller shells, hydraulic automatic retraction systems, variable frequency speed control, and modular designs for easy maintenance.

With growing demand for high-quality compound fertilizers in modern agriculture, double roller press granulation technology stands out as the ideal solution for upgrading NPK fertilizer production lines.

The unique working principle of the double roller press granulator

fertilizer granulator Aug 16, 2025

The reason why the double roller press granulator can occupy an important position in the organic fertilizer granulation equipment is inseparable from its unique working principle, which also allows it to show many advantages.  Its working process is clear and straightforward. First, the pre-treated dry powder raw material is conveyed between two relatively rotating rollers. The surface of this pair of rollers is usually provided with specific lines or grooves. Under the action of strong extrusion force, the raw material is tightly squeezed to form continuous flakes. These flakes then enter the crushing device and are crushed into particles of different sizes. Next, the particles will go through the screening stage, and the fine powder or large particles that do not meet the requirements will be separated and sent back to the granulation system, while the qualified particles will become the final product.

This working principle brings significant advantages. There is no need to add a lot of water, and the subsequent drying step is omitted, which not only saves energy, but also maintains the original nutritional content of the raw materials. The whole process is coherent and efficient, from the entry of raw materials to the output of qualified particles, which can be completed in one go and quickly meet production needs. At the same time, due to the physical extrusion granulation, it has strong adaptability to raw materials, and a variety of organic raw materials can be made into granules in this way.

The double roller press granulator has become an efficient and practical granulation choice in the organic fertilizer production line due to its scientific working principle, helping producers improve efficiency and ensure quality.

Organic Fertilizer Manufacturing: Precision Engineering or Agricultural Artistry?

fertilizer granulator Aug 16, 2025

Step into a modern organic fertilizer plant, and you’ll be amazed by the precision of the organic fertilizer production line—no longer simple compost turning machine, but a perfect dance between microorganisms and machinery. From raw material processing to finished product packaging, each step embodies the wisdom of modern agriculture.

Production Line: The “Orchestra” of Organic Fertilizer

A complete set of organic fertilizer equipment resembles a well-orchestrated symphony. The compost turner maintains the rhythm, continuously aerating the pile; the crusher acts like the brass section, breaking materials into uniform fragments; while the core organic fertilizer granulator serves as the concertmaster, shaping loose materials into plump “nutrient capsules.”

Granulator: The Alchemist of Fertilizer

Among all equipment, the organic fertilizer granulator is undoubtedly the soul of production. Whether it’s the elegant rotation of disc granulation or the powerful molding of extrusion, both demonstrate the artistic craftsmanship of “transforming waste into treasure.” Modern granulation technology not only controls particle hardness but precisely adjusts release rates, allowing organic matter to nourish crops on demand.

Production Process: Balancing Nature and Technology

A genuine organic fertilizer production process is never just mechanical assembly. Excellent manufacturers understand how to find the delicate balance between fermentation temperature, turning frequency, and granulation humidity. Like master winemakers controlling fermentation, each parameter adjustment affects the final product’s “flavor”—here referring to fertilizer efficiency and soil improvement effects.

As the sunset gilds the production line, watching organic matter—once considered waste—transform into “black gold” that nourishes the earth, you might wonder: Is this rigorous industrial production or a great collaborative art between humans and nature? Perhaps the best organic fertilizer production is precisely the perfect combination of both.

The secrets of organic fertilizer production line and bio organic fertilizer production line

fertilizer granulator Aug 16, 2025

In agricultural production, the quality of fertilizer directly affects the growth and harvest of crops. Today, let’s take a deep look at the differences between organic fertilizer production line and bio organic fertilizer production line to help you make a better choice.

Organic fertilizer production line mainly uses animal and plant residues, such as livestock and poultry manure, crop straw, etc. as raw materials. After collection, pretreatment is first carried out, such as crushing and mixing, to make the raw materials uniform in texture. Then enter the key fermentation and decomposition link, using natural microorganisms to decompose and transform organic raw materials under suitable temperature, humidity and ventilation conditions. This process often takes several months to make organic matter reach a stable state and finally make organic fertilizer.

Bio organic fertilizer production line goes a step further on this basis. After the raw materials are also collected, pretreated and conventionally fermented and decomposed, wait for the material temperature to drop to a suitable range (usually not more than 40℃), and evenly mix in specific microbial agents, such as Bacillus, yeast, etc. These microorganisms play an important role in the follow-up, and can decompose nutrients such as insoluble phosphorus and potassium in the soil and convert them into plant-absorbable forms. However, since microorganisms are sensitive to the environment, the subsequent storage and transportation conditions must be strictly controlled to prevent inactivation.

From the production process point of view, the bio-organic fertilizer production line adds the addition of microbial agents. It seems simple, but it has higher requirements for equipment and environment, and the production process is more complicated.

In terms of product effect, organic fertilizer can improve soil structure, slowly release nutrients, and provide long-term nutrition for plants; bio-organic fertilizer not only has these functions, but also can prevent and inhibit pests and diseases, enhance plant resistance, reduce the use of pesticides, and improve the quality and safety of agricultural products.

Whether you want to invest in organic fertilizer production or focus on bio-organic fertilizer processing, choosing our equipment can escort your production, help you produce high-quality fertilizers, and seize the opportunity in the field of agricultural planting.

How to choose a suitable fertilizer granulator?

fertilizer granulator Aug 16, 2025

In the field of fertilizer production, it is very important to choose the right granulator, which directly affects product quality, production efficiency and corporate benefits. Faced with a wide range of fertilizer granulators, how to choose?

Raw material characteristics are the primary consideration. For processing high-humidity materials such as livestock and poultry manure, the rotary drum granulator can meet the needs; fiber raw materials such as straw have high hardness, and the high-pressure molding technology of the double roller press granulator can ensure the compactness of the particles.

The scale of production needs to be considered. Large production lines have a large daily output demand, and the rotary drum granulator has become the first choice due to its continuous operation ability. It can be adapted to 10,000-ton organic fertilizer projects to meet high-intensity production. Medium-sized enterprises can choose a disc granulator, which can balance efficiency and cost and is suitable for the production of 10-20 tons of compound fertilizer per day. For small workshops or laboratories, the flat die granulator is flexible to operate, occupies a small area, and can easily cope with small batch production.

The requirements for particle quality also affect the choice of granulators. If spherical particles with a high ball formation rate are required, the disc granulator is an ideal choice. The organic fertilizer particles it produces are round and have good commercial properties. For high-strength columnar particles, the double roller press granulator has a good molding effect, high particle hardness, and is not easy to break. The ring die granulator can flexibly switch molds and produce particles of different shapes and sizes to meet diverse needs.

From the perspective of process and economy, in the dry production process, the double roller press granulator does not need to add water, reduces the drying process, and reduces energy consumption. In wet production, the rotary drum granulator and the drying equipment work well together, which is suitable for large-scale continuous production. From the perspective of maintenance cost, the flat die granulator has fewer wearing parts and is easy to repair; although the hydraulic roller granulator has a higher initial investment, it is durable and has a lower long-term use cost.

Considering the above factors comprehensively, select the appropriate one from many models to make fertilizer production more efficient and higher quality.. 

Drum Granulator: A Quartet of Process Innovations

fertilizer granulator Aug 16, 2025

In modern fertilizer production, rotary drum granulators are redefining granulation standards with four innovative features. How do these carefully designed functions work together to create energy-efficient production miracles?

Drum granulators are commonly used in organic fertilizer production because they efficiently form moist organic material into uniform granules through a rotating drum mechanism. They are a key component in organic fertilizer production equipment, which also includes mixers, crushers, dryers, and screening equipment. While granulators specialize in granulation, complete production lines (organic fertilizer production equipment) integrate multiple steps to transform raw organic waste into high-quality fertilizer.

“From steam conditioning to self-cleaning design, each innovation makes granulation more precise and efficient”

Intelligent Steam Conditioning System

The revolutionary steam injection technology acts like precise “thermal therapy” for materials. Steam penetrates the material bed, raising temperature while dissolving salts to form a liquid phase film, enabling ideal liquid phase conditions at low moisture content. This innovation reduces drying evaporation water by 40% and energy consumption by 35%.

⚗️Controlled Ammoniation System

Ammonia gas can be precisely introduced into the drum as needed to promote chemical reactions. This controlled ammoniation technology acts like a “chemical catalyst”, not only adjusting product pH but also improving granule structure, enhancing slow-release performance by 30%.

Self-Cleaning Liner Design

The special rubber or polypropylene liners embedded in the drum wall, combined with cleverly designed air holes, form an intelligent self-cleaning system. When liners rotate to the top, they sag under their own weight, causing adhered materials to fall off automatically. This “self-renewal” mechanism solves traditional granulator sticking problems, reducing maintenance costs by 60%.

Extensive Material Adaptability:

Low-solubility Materials High-solubility Materials Organic Matter Trace Elements

Whether it’s poorly soluble potassium sulfate and potassium chloride, highly soluble urea and ammonium nitrate, or various organic materials and trace elements, this system handles all perfectly. This “non-picky” characteristic reduces formula changeover time by 80%.

Four innovations, four advantages – the drum granulator is driving fertilizer production toward greater efficiency and intelligence with its technological charm.

Requirements for the site of organic fertilizer trough compost turning machine

fertilizer granulator Aug 16, 2025

The organic fertilizer groove compost turning machine has the following specific requirements for the site:

1. Site selection and layout: The site should be far away from water sources and residential areas to avoid pollution to the surrounding environment. The site should have water, electricity, storage and other treatment facilities, and the ground should be hardened to prevent material leakage.

3. Ground conditions: The ground of the site should be flat and hard, and cement ground or hardened land can be selected. The ground needs to be treated with anti-seepage to prevent material leakage from polluting groundwater.

4. Supporting facilities: The fermentation site of the organic fertilizer production line should be equipped with rainproof facilities to prevent rainwater from eroding the materials. The site should have a good drainage system to ensure that the leachate can be effectively collected and stored. Equipped with automatic monitoring and control equipment to monitor parameters such as temperature and humidity during the fermentation process.

5. Material stacking: The material pile should maintain a certain shape, usually a trapezoid or triangle, to facilitate the operation of the compost turning machine. The width of the strip-type fermentation should be 2.0m-4.5m, and the height should be controlled at 1.0m-2.0m.

6. Operation and maintenance space: The site should reserve sufficient operation space to facilitate the movement and operation of the compost turner. Set up maintenance channels to facilitate daily maintenance and overhaul of the equipment.

By meeting the above site requirements, the normal operation of the organic fertilizer trough compost turner can be ensured, the compost fermentation efficiency can be improved, and the impact on the environment can be reduced.