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China Aerospace Manufacturing Technology Research Institute
The small granulation and coating machine adopts an efficient hot air circulation drying system and a low-energy motor
Date: 2025-10-26Read: 7
Small granulation and coating machine is a common equipment in the pharmaceutical, chemical, and food industries, widely used in the production processes of drug granulation, coating, etc. This device can effectively improve the flowability, operability, and stability of materials by granulating or coating them, and provide important support for controlled drug release, taste regulation, and product appearance beautification.
Small granulation and coating machineWorking principle:
1. Granulation process
During the granulation process, the material is mixed and humidified to form uniform wet particles. The size of wet particles can be adjusted according to process requirements. Generally speaking, the humidified material will enter the vibrating screen or drum to further adjust the shape and size of the particles. The purpose of granulation is to improve the flowability of materials, reduce dust, and enhance compressibility.
2. Coating process
Coating refers to the formation of a thin film on the surface of particles, and common coating materials include polymers, sugar coatings, oils, etc. The role of coating can not only increase the stability of particles, prevent drugs from being affected by moisture and light, but also control the release rate of drugs, achieving sustained or delayed release effects. The coating process usually requires heating, spray and other processes to ensure uniform and firm coating.
Main components:
1. Granulator body
As the core part of the equipment, the main body of the granulator includes the powder feed inlet, mixing zone, humidification zone, etc. The powder enters the mixing zone through the feeding port and forms wet particles with high-speed mixing and appropriate wetting agents.
2. Coating system
The coating system includes a spray device, a heating system and a coating liquid supply system. The spray device evenly sprays the coating solution onto the particle surface, and the heating system solidifies the coating layer through hot air.
3. Drying system
Drying systems are usually equipped with hot or cold air circulation devices to accelerate the drying of particles during the coating process, ensuring the firmness and uniformity of the coating film.
4. Vibration screen or drum
Used for screening particles and adjusting their shape to ensure uniform particle size and avoid particle adhesion.
5. Control system
Usually equipped with digital control system, it can realize real-time monitoring and adjustment of temperature, humidity, speed, spray volume and other parameters to ensure accurate control of the production process.
Characteristics of Small Granulation Coating Machine:
1. Small size, strong flexibility
Small in size and occupying less space, suitable for small-scale production or laboratory use. The device has a compact structure, simple operation, and is easy for operators to quickly get started.
2. High efficiency granulation and coating functions
Despite its small size, it still has high production efficiency. Its granulation and coating functions are powerful and can meet the processing needs of various materials, widely used in the pharmaceutical, health product, and food industries.
3. Strong adjustability
Usually equipped with a digital control system, it can accurately adjust parameters such as temperature, humidity, and wind speed to meet the requirements of different granulation and coating processes. The particle size and coating thickness can be flexibly adjusted, and it has good operability.
4. Low energy consumption, environmental protection and energy conservation
Usually, efficient hot air circulation drying systems and low-energy motors are used to reduce energy consumption, save operating costs, and minimize environmental impact.
5. Easy to clean and maintain
Due to its simple design, cleaning and maintenance inside the equipment are relatively easy. Many devices adopt a detachable design, which facilitates disassembly, cleaning, and replacement of accessories, reducing the difficulty of equipment maintenance.