The rotary coating machine has a wide range of applications and can coat various types of fertilizers such as organic fertilizers, compound fertilizers, slow-release fertilizers, and microbial fertilizers. The specific applicable categories are as follows:

1. Organic fertilizer

Mainly targeting organic granular fertilizers made from animal manure, straw, compost, and other raw materials.

The purpose of encapsulation is to reduce the moisture absorption and clumping of organic fertilizers during storage and transportation, while also reducing the volatilization loss of nutrients such as nitrogen.

Common coating materials: biodegradable natural polymer materials (such as starch, cellulose), mineral oil, etc.

2. Compound fertilizer/compound fertilizer

Suitable for granular compound fertilizers or compound fertilizers made by mixing nitrogen, phosphorus, potassium and other elements in proportion, especially for medium to high concentration products.

Purpose of coating: To solve the industry pain points of moisture absorption and clumping in compound fertilizers, improve product fluidity, and extend storage period.

Common coating materials: Inert materials such as paraffin, asphalt, kaolin, talc powder, or functional coating agents containing trace elements.

3. Slow release/controlled release fertilizer

It is one of the core equipment for producing slow-release and controlled-release fertilizers, suitable for fertilizers that require controlled nutrient release rate.

Purpose of coating: To form a semi permeable or impermeable film on the surface of fertilizer particles, achieving slow release of nutrients, prolonging the fertilizer efficiency period, and reducing the frequency of fertilization.

Common coating materials: high molecular weight materials such as polyurethane, sulfur, resin, etc. The release rate is controlled by adjusting the thickness and porosity of the membrane.

4. Microbial fertilizer

For granular fertilizers containing beneficial microorganisms such as Bacillus, actinomycetes, etc.

The purpose of encapsulation is to form a protective layer on the surface of microbial fertilizers, isolating adverse environments such as high temperature, ultraviolet radiation, acid and alkali, and improving the survival rate of microorganisms.

Common coating materials: high-quality peat, humic acid, bio gel and other materials that are friendly to microorganisms to avoid damaging the activity of microbial agents.

5. Other special fertilizers

Foliar fertilizer granules: By coating, the hardness of the granules is improved to prevent breakage during transportation, making it easier to spread or flush.

Trace element fertilizer: Coating trace elements such as zinc, boron, and iron on the surface of basic fertilizers to achieve synergistic nutrient supply and avoid element antagonism.