The QZL Series Extrusion Spheronization Machine is an advanced granulation and pelletizing solution designed for producing high-quality spherical granules. Widely used in pharmaceutical, food, chemical, and fertilizer industries, this machine converts wet extruded materials into uniform, dense, and smooth pellets with excellent flowability and coating performance.
Product Overview
The QZL extrusion spheronizer is a key component in the pellet production line, typically working in combination with mixers and extrusion granulators. It transforms cylindrical extrudates or moist granules into highly spherical pellets through centrifugal force, friction, and controlled airflow.
This process significantly improves the appearance, density, and uniformity of particles, making it ideal for applications such as capsule pellets, drug granules, and functional materials.
Working Principle
The machine operates by feeding wet granules into a high-speed rotating centrifugal disc. Under the combined action of centrifugal force, gravity, and airflow, the particles move in a circular “rope-like” motion. Continuous collision and friction reshape the granules into compact spherical pellets with high roundness and smooth surfaces.
This controlled spheronization process ensures consistent particle size distribution and excellent product quality.
Structural Design
The QZL spheronization machine mainly consists of:
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Cylindrical working chamber
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High-speed rotating friction disc
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Variable speed drive system
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Airflow and blower system
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Optional spray system for liquid addition
The machine can be manufactured using SUS304 or SUS316L stainless steel, meeting GMP standards for pharmaceutical and food-grade production.
Performance Advantages
High Sphericity and Uniformity
The machine produces pellets with excellent roundness and smooth surface, ideal for coating and encapsulation processes.

Improved Flowability and Density
Spheronized pellets have better flow characteristics and increased bulk density (up to 25%), improving downstream processing efficiency.
Reduced Dust and Fines
The process minimizes dust generation and particle breakage, ensuring cleaner production and higher product yield.
Stable and Efficient Operation
Equipped with variable speed control and optimized disc design, the machine ensures stable performance and consistent output quality.
GMP-Compliant Design
The enclosed structure prevents dust leakage and ensures safe, hygienic operation suitable for pharmaceutical applications.
Wide Range of Applications
The QZL Series Extrusion Spheronization Machine is suitable for various industries:
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Pharmaceutical industry: pellet production for capsules, tablets, and sustained-release formulations
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Food industry: enzyme pellets, flavor granules, nutritional supplements
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Chemical industry: catalysts, detergents, pigments
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Agriculture: fertilizer granulation and feed pellets
Typical products include omeprazole pellets, aspirin pellets, compound granules, and coated particles.
Technical Parameters (Typical Models)
| Model | Disc Diameter (mm) | Capacity (kg/h) | Power (kW) |
|---|---|---|---|
| QZL-230 | 230 | 2.5–4 | 0.75 |
| QZL-400 | 400 | 5–8 | 2.2 |
| QZL-550 | 550 | 10–50 | 3 |
| QZL-700 | 700 | 40–80 | 3.7 |
| QZL-1000 | 1000 | 70–200 | 5.5 |
| QZL-1300 | 1300 | 100–300 | 7.5 |
Capacity and specifications can be customized according to customer requirements.
Customization and Control System
The machine supports advanced control options such as PLC and touch screen systems for automated operation. Voltage, configuration, and capacity can be customized to meet specific production needs.
OEM and turnkey pellet production line solutions are also available.
FAQ
1. What is a QZL Series Extrusion Spheronization Machine?
The QZL Series Extrusion Spheronization Machine is a pharmaceutical and chemical processing equipment used to convert wet extrudates into uniform spherical pellets or granules through cutting, rounding, and polishing.
2. How does the QZL spheronization process work?
Wet material is first extruded into cylindrical strands, then fed into the spheronizer, where a rotating friction plate breaks and rolls the particles into smooth, uniform spheres through centrifugal force and friction.
3. What materials can be processed with this machine?
It is commonly used for pharmaceutical granules, controlled-release pellets, chemical catalysts, food additives, and other powder-based formulations requiring uniform particle shape.
4. What are the advantages of the QZL Series machine?
- Produces highly uniform spherical pellets
- Improves the flowability and compressibility of materials
- Suitable for continuous or batch production
- High efficiency and stable performance
- Ideal for pharmaceutical-grade applications
5. What industries commonly use this equipment?
It is widely used in the pharmaceutical industry, as well as chemical, food processing, and agricultural industries, where controlled particle size and shape are required.







