Rotary Drum Coater
The optimal solution for coating organic fertiliser granules

Rotary Drum Coater Overview
Rotary Drum Coater is a specialised equipment for coating or coating the surface of granular materials, whereby the coating liquid or powder is uniformly applied to the surface of the granules by means of a rotary drum in order to improve their properties or appearance. It is widely used in fertiliser, seed, feed, pharmaceutical and food industries.
Rotary Drum Coater for Sale
Product Details



Features and Advantages of Rotary Drum Coater
Features and Advantages
High efficiency and uniformity
The drum design of the drum coater ensures that the material is in full contact with the coating solution during the run. The material is evenly coated anywhere on the drum.
Suitable for a wide range of materials
This coater can effectively handle granular materials of many shapes and particle sizes. Whether spherical, cylindrical or irregular large or small particles.
High level of automation
The machine is highly automated and can integrate spraying, mixing and drying processes. The operator simply sets the parameters and the machine runs automatically.
Environmentally friendly
Sprayers waste less paint liquid during the spraying process. In addition, some machines are equipped with dust or exhaust gas recovery systems..
Main Technical Parameters of Rotary Drum Coater
Main Technical Parameters
Modle | Motor(kw) | Diameter(mm) | Length(mm) | Speed (r/min) | Capacity(t/h) |
---|---|---|---|---|---|
HXTC-1000 | 5.5 | 1000 | 6000 | 15 | 1-3 |
HXTC-1200 | 7.5 | 1200 | 6000 | 14 | 3-6 |
HXTC-1500 | 5.5 | 1500 | 6000 | 12 | 6-10 |
HXTC-1800 | 15 | 1800 | 8000 | 12 | 10-15 |

Working Principle of Rotary Drum Coate
Working Principle
The organic fertilizer drum coating machine is mainly composed of a drum, a feed port, a discharge port, a spray system, etc. During operation, the organic fertilizer particles enter the rotating drum from the feed port and continuously roll under the drive of the drum. The spray system sprays the specific coating material into the drum in an atomized form. The coating material is evenly attached to the surface of the particles, solidifies after a certain period of time, and completes the coating of the particles, and is discharged from the discharge port.
Rotary Drum Coater Application Scenarios
Application Scenarios
Fertiliser industry
In the fertiliser industry, rotary drum coaters are used to coat granular fertilisers to form a moisture and caking resistant coating. It extends the shelf life of fertilisers, ensures their effectiveness, facilitates transport and storage, and improves ease of use.
Seed industry
In the seed industry, it wraps a protective layer or adds nutrients to seeds. This enhances seed resistance, improves germination rates and also extends storage time. In seed processing, it is a key piece of equipment for improving seed quality and vigour.
Feed industry
In the feed industry, this coating machine can coat nutrient solution or drugs. It can effectively improve the nutrient composition of pellet feed, enhance preservation characteristics and prevent deterioration.
Food Industry
In the food industry, rotary drum coaters are mainly used for confectionery or granular foods. They can be flavoured or sugar-coated to enhance the taste and appearance of food products.
Pharmaceutical industry
For functional coating of granular drugs. For example, to achieve slow release or moisture resistance. It can accurately control the release rate of the drug to ensure stable efficacy, improve drug stability and ensure safe and effective medication.
Other Industries
In addition, the coating machine is also suitable for some industries that need surface treatment of granular materials. For example, it can coat some chemical particles with specific functions to meet the requirements of special production processes.
Rotary Drum Coater Buying Guide
Buying Guide
Define production requirements
The key parameters of the coater, such as capacity, material characteristics (particle shape, size, density, etc.) should be determined according to the actual production requirements.
Pay attention to the roller material
Choose the right material for the drum. Corrosion resistance, abrasion resistance and ease of cleaning are key considerations in material selection.
Evaluating the coating system
Rotary drum sprayers can be equipped with an optional multi-nozzle precision spraying device that intelligently adjusts the spray angle and liquid volume of the sprayer.
Consider automation and control
Choose equipment with an intelligent control system that makes it easy to adjust parameters such as drum speed, spray volume and drying temperature.
Heating and Drying
If the coated material needs to cure or dry quickly, it is recommended to use a drum coater with heating to increase coating efficiency and reduce waiting times.
Test equipment performance
Before purchasing, you should communicate with the supplier to conduct a trial test to observe the coating uniformity, efficiency and ease of operation of the equipment.
Frequently Asked Questions.
Huaxin Machinery coating machine is equipped with a multi-spray nozzle precision coating system and supports the adjustment of coating parameters, so as to ensure the uniformity of coating.
Rotary drum coaters typically handle both liquid (e.g. resins, greases, water-based coatings) and powder coatings.
Huaxin Machinery ‘s coating machine rollers are available in stainless steel and carbon steel. Stainless steel is suitable for corrosive materials and food-grade applications, while carbon steel is more economical and suitable for general industrial needs.
Yes, it can. It is often integrated into a complete production line and used in conjunction with equipment such as mixers, dryers, coolers or packaging machines to increase overall production efficiency.
Huaxin Machinery supports customisation, including drum size, coating system, heating and drying function and control system to meet your specific production needs.

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