Automatic Controlled Release Fertilizer Production Line

Product Overview

The Sulfur Coated Urea Slow Release Fertilizer Plant Line is a high-efficiency, fully automated industrial manufacturing system engineered for the continuous encapsulation of granular urea with molten sulfur. This specialized plant line integrates advanced sulfur melting and multi-point atomized spraying technologies to form a uniform, solid protective film around each urea granule. By creating this robust sulfur shell, the equipment effectively prevents the highly hygroscopic urea from caking during warehouse stacking and drastically retards its dissolution rate in soil. This thermal coating process minimizes volatile nitrogen leaching and nutrient loss, thereby maximizing nitrogen use efficiency and extending the fertilizer's operational validity period to match crop growth cycles.

The production line features an enclosed, explosion-proof rotary coating drum where pre-heated urea granules are precisely metered. Molten sulfur is micro-sprayed onto the rolling granule curtain, freezing instantly upon contact to build the primary slow-release barrier. The line is further equipped with secondary wax or polymer conditioning sealers to fill micro-fissures in the sulfur crust, followed by fluid bed cooling modules. Operating with a gentle handling design to ensure zero capsule damage, this production line delivers premium, cost-effective Sulfur Coated Urea (SCU) with exact controlled-release profiles.

Main features:

Prevent caking: effectively prevent fertilizers from caking during storage and transportation, and maintain good fluidity.

Improve fertilizer efficiency: coating treatment can improve the efficiency of fertilizers' effective ingredients being absorbed by plants.

Wide range of application: suitable for various types of fertilizers, including organic fertilizers, chemical fertilizers, slow-release fertilizer particles, controlled-release fertilizer particles, compound fertilizers, inorganic fertilizers, etc.

Application

Widely used in agricultural production, especially in the production process of compound fertilizers, suitable for large-scale agricultural production and fertilizer processing enterprises.

Fertilizer coating production line

The workflow of the coating production line mainly includes the following key steps:

Raw material preparation:
First, prepare the required fertilizer raw materials, including granular fertilizer and coating agent. Ensure the freshness and quality of the raw materials for subsequent processing.

Material conveying:
The fertilizer particles are fed into the feeding port of the coating machine through a conveying system (such as a screw conveyor) to ensure that the materials flow in evenly.

Spraying coating agent:
The spraying system inside the coating machine sprays the liquid coating agent onto the surface of the fertilizer particles. The spray head adopts an atomization design to ensure that the coating agent evenly covers each particle.

Mixing and reaction:
After spraying, the fertilizer particles are fully mixed with the coating agent to form a uniform protective film. This process is usually carried out under controlled temperature and humidity to optimize the coating effect.

Drying treatment:
The coated fertilizer particles need to be dried to remove excess moisture and ensure the stability and storage of the product.

Finished product output:
Finally, the dried fertilizer particles flow out through the discharge port, ready for subsequent packaging and storage.

Through the above steps, the coating production line can effectively improve the efficiency of fertilizer use, prevent caking, and ensure the stability of fertilizer during storage and transportation.

Product Parameters

Product Details

About Us
As a fertilizer equipment supplier with more than ten years of experience, Gofine Machinery provides a variety of services to meet the needs of customers. Our services include:

• Equipment supply:

Provide various types of fertilizer production equipment, including organic fertilizer granulators, compound fertilizer granulators, inorganic fertilizer granulators, water-soluble fertilizer granulators, controlled-release fertilizer granulators, fertilizer batching machines, crushers, mixers, dryers, granule shaping machines, coating machines, granule screening machines, packaging machines and a complete set of fertilizer production lines.

• Technical support:

We provide professional technical consultation and support to help customers choose suitable equipment and processes and optimize production processes.

• Installation and commissioning:

Provide equipment installation and commissioning services for customers to ensure that the equipment can operate normally and achieve the expected production results.

• Training services:

Provide operation training to help customers' employees master the use and maintenance skills of the equipment and improve production efficiency.

• After-sales service:

Provide comprehensive after-sales service, including regular maintenance, troubleshooting and spare parts supply, to ensure the long-term and stable operation of the equipment.

• Customized solutions:

We provide personalized equipment and production line design solutions based on the specific needs of customers to meet the needs of fertilizer production of different scales and types.

Through these services, we are committed to providing customers with high-quality fertilizer equipment and comprehensive support to help them succeed in the competitive market.