Optimizing double roller press granulator process to boost organic fertilizer production

fertilizer granulator Dec 10, 2025

Double roller press granulators are key equipment in modern organic fertilizer production lines. Optimizing their process directly impacts a company’s output and economic benefits. With the rapid growth of organic farming, how to improve organic fertilizer production through technical upgrades to these granulators has become a major focus for many manufacturers.

1.Optimizing Raw Material Pre-treatment

Grind raw materials to 40-60 mesh. Control moisture content between 20%-25%. Adding suitable binders like bentonite or lignin can significantly improve granulation rate and reduce return material. This is expected to increase output by around 15%.

2.Precise Adjustment of Roller Parameters

For general organic fertilizer production: Set the nip gap between 1.5-2.5mm. Maintain roller pressure at 8-12MPa. Control line speed at 0.8-1.2m/s. Installing pressure sensors and automatic adjustment systems allows for dynamic optimization, improving particle formation rate.

3.Die Selection and Maintenance

Hole Size: 3-6mm suits most organic fertilizers. Open Area Ratio: Maintain between 30%-40%. Regular polishing extends die life. Recommend professional maintenance every 500 tons of material processed to ensure smooth discharge.

4.Coordinated Optimization of Supporting Equipment

Precise batching system (error <1%). Efficient mixer (mixing uniformity >95%). Energy-saving dryer (thermal efficiency >65%). Systematic upgrades like this can increase the entire line’s output by 30%-50%.

Through comprehensive optimization of the double roller press granulator process, organic fertilizer producers can significantly boost production without adding more machines.

What are the requirements of ring die pelleting machines for processed materials?

fertilizer granulator Dec 8, 2025

The ring die pelleting machine is a core equipment in the production of granular organic fertilizer, known for its high output, high pellet hardness, and excellent formation rate. However, understanding the material requirements of the ring die pelleting machine is essential for achieving efficient and stable production.

1.Suitable Material Fineness

The raw materials must be thoroughly crushed, with a fineness generally required to be between 80 and 120 mesh (0.2mm–0.1mm). Excessively coarse materials have poor fluidity and struggle to pass through the mold holes. If the fineness is too high (exceeding 140 mesh), it may affect the material’s breathability.

2.Precise Moisture Content(13%–18%)

If the moisture is too low, the material lacks flexibility, making it difficult to extrude and form. This results in excessive powder and a very low formation rate. If the moisture is too high, the material becomes overly soft and sticky, easily clogging the mold holes.

3.Appropriate Organic Matter Content and Fiber Structure

Organic matter can generate some viscosity under high pressure, which aids in formation. Short fibrous materials, on the other hand, interweave and bind within the pellets, significantly improving their hardness and drop resistance.

4.Balanced Formula and Uniform Mixing

Various raw materials must be blended in scientific proportions and thoroughly mixed using a mixer. A balanced formula ensures stable nutrient content in the material while also adjusting its physical properties.

In summary, only by pre-treating the raw materials can the advantages of the ring die pelleting machine’s high efficiency be fully utilized to produce high-quality granular organic fertilizer.

The impact of material moisture on flat die pelleting machines in organic fertilizer production

fertilizer granulator Dec 5, 2025

In organic fertilizer production, flat die pelleting machines are highly favored for their strong adaptability and low investment cost. However, the moisture content of the material directly determines the success and efficiency of granulation—it can be considered the “lifeline” of the process.

1.Excessively Low Moisture: Results in Failure to Form Pellets and Reduced Output

When the material is too dry (usually with a moisture content below 20%), its viscosity significantly decreases. Under the pressure of the rollers, the powdered material cannot bind effectively, leading to loose, poorly formed pellets or granules with very low strength that break easily.

2.Excessively High Moisture: Causes Blockage and Sticking, Halting Production

If the material is too wet (usually with a moisture content above 40%), it becomes too soft and overly sticky. During compression, the material adheres to the rollers and the flat die mold, forming a thick layer of paste that causes serious clogging.

3.Ideal Moisture Range

Generally, the ideal moisture content for materials processed by a flat die pelleting machine falls within the range of 25%–35%. Within this range, the material exhibits optimal plasticity and viscosity. Therefore, to achieve the best performance of the flat die pelleting machine, it is essential to accurately monitor and pre-treat the moisture content of the incoming material. This can be done by adding dry auxiliary materials (such as straw powder or rice husk powder) or returned material to reduce moisture, or by adding water or slurry to adjust overly dry material.

In summary, precise control of material moisture is key to unlocking the full potential of flat die pelleting machines.

Selection guide for fertilizer granulators for small and medium-sized organic fertilizer plants

fertilizer granulator Dec 4, 2025

Choosing the right equipment is crucial for small and medium-sized organic fertilizer plants, and the new type organic fertilizer granulator is worth considering.

For these plants, equipment selection directly impacts production efficiency and profit margins. As a core piece of machinery, the granulator is closely tied to product quality and market competitiveness. The new type organic fertilizer granulator, with its strong adaptability and cost-effectiveness, has become an ideal choice for small and medium-sized producers.

Small and medium-sized organic fertilizer plants often face challenges such as limited space, tight budgets, and fluctuating raw material quality. Traditional granulators either have excessive capacity leading to waste, or suffer from low pellet formation rates resulting in material loss. The new granulator addresses these issues effectively.

In terms of cost control, the new granulator reduces energy consumption by 20%-30% compared to traditional equipment. Taking a production line with a daily output of 5 tons as an example, it can save about ¥2,000 in electricity costs per month. Its modular design simplifies maintenance, and the replacement cost of core components is reduced by 40%, significantly minimizing downtime losses.

Regarding product quality, the new equipment produces organic fertilizer granules with a uniformity rate of over 90% and moderate hardness. This not only facilitates packaging and transportation but also ensures even nutrient release during fertilization, enhancing market recognition.

With increasingly strict environmental regulations, the new granulator comes equipped with a sealed dust collection system, ensuring dust emissions meet standards. For manufacturers planning to expand their business, some new models support future capacity upgrades without the need for a complete replacement, effectively reducing secondary investment.

Choosing the right granulator allows small and medium-sized organic fertilizer plants to reduce costs, improve efficiency, and enhance product competitiveness. The new type organic fertilizer granulator is undoubtedly a cost-effective choice.

Synergistic application of NPK fertilizer production lines and BB fertilizer mixers

fertilizer granulator Dec 1, 2025

NPK fertilizer production lines are crucial for compound fertilizer production. As a key piece of equipment, BB fertilizer mixers, when integrated with the production line, significantly improve overall production efficiency and product quality. NPK fertilizer production involves processes such as raw material crushing, mixing, granulation, and drying. The mixing stage directly impacts the nutrient balance of the final product, and BB fertilizer mixers are a perfect fit for this requirement.

In the production line, raw materials processed by the fertilizer crusher are delivered to the BB fertilizer mixer via a fertilizer conveyor. Upon startup, the drive system drives the mixing shaft and blades, evenly mixing nitrogen, phosphorus, and potassium, laying a solid foundation for the subsequent granulation process. Inhomogeneous mixing can result in significantly different nutrient distributions in the granulated fertilizer, impacting product quality.

The BB fertilizer mixer’s control system can be linked with the overall production line control system to synchronize parameters such as mixing speed and time, ensuring a smooth production process. After mixing, the uniform raw materials are discharged through the discharge port and sent to the granulator by conveyor. It works efficiently with subsequent equipment such as dryers and coolers to form a complete NPK fertilizer production chain, helping companies achieve large-scale, high-quality production.

A deep dive into fertilizer crusher: Structure, Principle, and Core Advantages

fertilizer granulator Nov 29, 2025

As a crucial piece of equipment in the fertilizer production process, fertilizer crushers play an indispensable role in the production of organic fertilizers, NPK fertilizers, and other fertilizers. To fully maximize their performance, a thorough understanding of their structure, operating principles, and core advantages is essential.

Structurally, a fertilizer crusher primarily consists of a crushing chamber, crushing components, a feed inlet, a discharge outlet, and a drive system. The crushing chamber provides space for material crushing. The crushing components within, such as the blades, hammers, and toothed plates, are the core components that directly act on the material. The drive system provides power to the crushing components, ensuring stable operation. Some fertilizer crushers are also equipped with a screening system to select the particle size of the crushed material to meet different production requirements.

The operating principle is based on a combination of impact, cutting, and grinding. After material enters the crushing chamber through the feed inlet, the high-speed rotating crushing components cut and grind the material. This, combined with intense collision and friction between the material and the crushing components, ultimately breaks the material into particles of the desired quality before discharging through the discharge outlet.

The core advantages of a fertilizer crusher lie in its high processing efficiency, adaptability, and ease of maintenance. It can quickly crush a variety of fertilizer raw materials, and its structural design facilitates routine maintenance and cleaning, significantly reducing production downtime and providing strong support for fertilizer manufacturers to increase production capacity.

Applicable to multiple industries, disc granulators offer a wide range of applications

fertilizer granulator Nov 27, 2025

Disc granulators are not limited to fertilizer production. Their outstanding granulation capabilities make them a valuable tool for a variety of industries, including metallurgy, building materials, and chemicals.

In the metallurgical industry, metal ore powders such as iron ore and manganese ore are processed into granules by disc granulators, facilitating subsequent sintering and smelting processes. This not only improves resource utilization, but also reduces production waste and lowers production costs.

In the building materials industry, disc granulators are used to produce cement raw material granules, ceramsite sand, and other building material granules. The granulation of cement raw materials improves their combustion properties, thereby enhancing cement quality.

In the chemical industry, disc granulators can granulate a variety of chemical raw materials, including catalysts, pigments, and detergents. The resulting chemical products exhibit improved flowability and stability, significantly enhancing product performance and meeting the high standards of chemical production.

The core role of chain crushers in organic fertilizer production

fertilizer granulator Nov 26, 2025

In the organic fertilizer production process, material crushing is a critical pretreatment step, and chain crushers, with their outstanding performance, are the preferred equipment for this purpose. Organic fertilizer raw materials often contain lumps or medium-hard impurities. Inadequate crushing can affect the efficiency of subsequent granulation and mixing processes, as well as the quality of the finished product. It can even lead to problems such as material jamming in the granulator and uneven granulation in the finished fertilizer.

Designed specifically for the characteristics of organic fertilizer, chain crushers can efficiently crush a wide range of organic fertilizer raw materials, including those with a certain degree of moisture and viscosity, addressing the clogging and incomplete crushing issues of traditional crushing equipment. High-speed rotating chains and hammers impact and shear the material, while an adjustable screen allows for easy control of the crushed material’s particle size, meeting the stringent fineness requirements of organic fertilizer production.

Furthermore, the equipment’s sturdy structure, with core components made of wear-resistant steel, can withstand long-term, intensive operation, minimizing production interruptions. This provides a strong guarantee for the stable operation of organic fertilizer production lines, helping companies improve the yield rate of finished fertilizers and production efficiency.

Drum screener machines are an ideal choice for material screening in various industries

fertilizer granulator Nov 25, 2025

When it comes to high-efficiency screening equipment, drum screener machines, with their outstanding performance advantages, play a vital role in material screening operations in various industries, including mining, building materials, chemicals, food, and agriculture. In fertilizer production, they are particularly crucial for ensuring material quality.

In terms of structural design, drum screener machines are built around the core requirement of “high-efficiency screening” and primarily consist of a drum body, a vibrating device, a drive unit, a support system, and a feed and discharge ports. The drum body’s screen mesh diameter can be customized to meet the screening standards of various industries, ensuring precise separation of materials of varying particle sizes. The vibrating device utilizes a scientifically designed vibration frequency to evenly distribute material within the drum, preventing localized accumulation that could affect screening performance. The drive unit provides stable and continuous rotational power to the drum, and together with the support system, ensures the equipment’s long-term operational stability.

Its high efficiency is reflected in multiple dimensions. Not only does it rapidly separate materials, its processing capacity can accommodate production scales ranging from small workshops to large factories, but it also boasts strong environmental adaptability—maintaining stable screening efficiency for both dry ore particles and wet organic materials, and exhibiting high tolerance to moisture and viscosity.

Furthermore, the drum screener machine’s core components are constructed of wear-resistant materials, reducing wear over time, extending its service life, and lowering ongoing maintenance costs, making it an ideal choice for material screening across multiple industries.

Advantages and applications of the flat die pelleting machine

fertilizer granulator Nov 21, 2025

The flat die pelleting machine offers significant advantages, with the larger pressure wheel being a key feature. This larger pressure wheel also increases the bearing’s ability to withstand pressure, making the equipment more stable and reliable, and reducing failures caused by pressure. Furthermore, the larger pressure wheel prevents heat generated by extrusion friction from being transmitted to the bearing chamber, ensuring the bearing operates at a low temperature and preventing lubricant leakage, thus extending bearing life. Furthermore, the larger pressure wheel can be repaired two to three times, reducing maintenance costs and increasing project profitability, offering significant advantages over similar equipment.

The flat die pelleting machine is suitable for a wide range of materials. In agriculture, crop straw, such as corn stalks, wheat straw, and rice husks, can be processed into biomass pellet fuel or organic fertilizer. In the domestic sector, some household waste, after sorting and processing, can also be used for pelletizing, achieving resource recycling. In industry, the flat die pelleting machine can easily handle materials such as biofertilizer, coal, carbon black, kaolin, and stone powder, demonstrating its strong material adaptability.

Flat die pelleting machines also play a positive role in environmental protection. On the one hand, they can process large amounts of agricultural and forestry waste, reducing environmental pollution and enabling resource recycling. On the other hand, by converting degradable materials into biodegradable plastic pellets, they provide a new approach to addressing white pollution, promoting the development of environmentally friendly materials and facilitating the achievement of sustainable development goals.