Product Overview
Our Slow-Release Fertilizer NPK Granule Film Coating Machines are engineered to revolutionize compound fertilizer production by applying uniform functional coatings to fertilizer granules. Utilizing advanced film-forming technology, the equipment ensures precise control of coating thickness and composition, enabling controlled nutrient release for enhanced fertilizer efficiency. Designed for durability and precision, these coating systems support sustainable agriculture by reducing nutrient loss and environmental impact while maximizing crop uptake. Ideal for modern fertilizer plants, the machines guarantee consistent quality, operational efficiency, and adaptability to various NPK formulations.
Key Features & Benefits
1. Advanced Powder Coating System
Precise powder deposition, achieving over 95% material utilization
Micro-droplet spray technology, ensuring uniform coating
Patented anti-clogging nozzle design
2. Intelligent process control
PLC control, including airflow and spray parameters
3. Dual-function design
Combines coating and polishing functions in a compact unit
Transparent process chamber for easy visual monitoring
4. Corrosion resistance and long service life
316L stainless steel construction for easy cleaning and maintenance
5. Compact footprint
Suitable for benchtop or floor-mounted operation, quiet operation
Working Principle
Granular material is fed continuously or in batches into a rotating drum. As the drum rotates, an internal lifting mechanism gently picks up and dumps the granules, forming a uniform "granule bed." Precision spray guns atomize the coating solution (such as polymer resin, sulfur, syrup, etc.) and evenly distribute it over the tumbling granules. Simultaneously, heated air passes through the drum, rapidly drying the coating solution upon contact with each granule. This process forms a strong, continuous film around the granules. Finally, the coated granules are discharged for further cooling or packaging.
Coating effect
Primary Applications
This versatile coating machine is ideal for a wide range of coating applications on granules and pellets, including:
Slow-Release & Controlled-Release Urea Fertilizers: Coating with polymer-based membranes to delay nutrient release.
Sulfur-Coated Urea (SCU): Applying a uniform layer of molten sulfur onto urea granules.
Urea with Micronutrients: Coating granules with essential trace elements like Zinc, Boron, etc.
Anti-Caking Agent Coating: Applying anti-caking powders or liquids to improve storage and flowability.
Other Applications: Seed coating, pesticide granule coating, and coating for various chemical and food products.
Technical Specifications (Standard Models)
| Model | Disc diameter (mm) | Voltage (v) | Adjustable speed | Adjustable tilt angle | Overall size (mm) | Total Weight |
| ZL30 | 300 | 220 | 0~100rpm | 0~45° | 392*530*870 | 20kg |
| ZL50 | 500 | 220 | 0~100rpm | 0~45° | 550*600*800 | 25kg |
Note: We specialize in providing custom-designed solutions. All specifications can be tailored to meet your specific production requirements.
Product details
Why Choose Our Coating Machine?
Proven Expertise: We have decades of experience in designing mixing, granulation, and coating equipment for the fertilizer industry.
End-to-End Support: We provide comprehensive support, from initial process consultation and factory layout to installation, commissioning, operator training, and lifelong after-sales service.
Exceptional Return on Investment (ROI): Our robust construction and precision engineering minimize downtime and maintenance costs, maximizing your productivity and profitability over the machine's lifetime.
Contact Us Today for a Detailed Quotation and Customized Solution!
Let our Stainless Steel Coating Machine be the cornerstone of your advanced production.
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