Centrifugal Classifier
CTC series air classifier is designed under the guidance of our German experts, and it is specially developed for separating powder products between 32-250μm. It does not require any peripheral equipment, such as cyclone collector, bag filter, induced draft fan, etc.
What is a Centrifugal Classifier?
A centrifugal classifier is a specialized machine used to separate powder particles by size using centrifugal force and airflow. It’s commonly referred to as a centrifugal air separator or powder classifier. The device spins the powder feed at high speeds inside a rotating chamber, creating a strong centrifugal force that pushes coarser particles outward while finer particles stay suspended and are carried away by an airflow.
Centrifugal Classifier Working Principle
How It Works
- Powder feed entry: Material enters the classifier and is caught in the spinning rotor.
- Centrifugal force: The rotor’s fast rotation forces larger, heavier particles toward the outer wall.
- Airflow separation: A controlled airflow lifts finer particles toward the classifier’s outlet.
- Particle size classification: By adjusting the rotor speed and airflow, the classifier separates powders typically ranging from 32 to 250 micrometers.
This process efficiently grades and classifies dry powders, making centrifugal classifiers ideal for applications requiring precise particle size control, such as quartz powder grading or mineral fines separation.
Features And Benefits
- Classify apex top cutting:d97<32μm.
- Wide range of particle size: 32-250μm.
- The processing capacity range: 1-50t/h.
- The technology comes from Germany, and the design is mature and reliable.
- The equipment has low energy consumption, low investment cost and low maintenance cost.
- No need for peripheral equipment, small footprint.
- Suitable for abrasive, quartz sand, marble and other hard materials.
Why Choose Centrifugal Classification from EPIC Powder?
Centrifugal classification stands out compared to traditional screens and hydrocyclones for several key reasons. It offers sharper particle size separation, improved efficiency, and less maintenance hassle. Here’s why it makes sense for powder separation, especially in U.S. industries like mineral processing and quartz powder grading:
| Advantage | Centrifugal Classifier | Traditional Screens | Hydrocyclones |
|---|---|---|---|
| Separation Accuracy | High precision, tighter cut points | Lower accuracy, often less consistent | Moderate accuracy |
| Wear & Tear | Less abrasion; wear-resistant linings | Screens prone to tearing and blinding | Abrasion can be severe on liners |
| Particle Size Range | Handles powder from 32-250μm easily | Struggles with finer powders | Good for coarser particles |
| Energy Efficiency | Uses less power with adjustable airflow | Requires more power & frequent cleaning | Moderate power consumption |
| Maintenance | Simple bolt-on parts, easy to maintain | Frequent screen replacements | Needs routine liner replacement |
| Dry Powder Handling | Excellent for dry applications and inertial classification | Screens can clog with dry powders | Mostly wet or slurry feeds |
In short, choosing centrifugal classification means better control over particle sizes with less downtime. It’s a smart choice if you want reliable, low-maintenance powder separation without the headaches of traditional methods. This makes it ideal for American manufacturers looking to boost production quality while cutting operating costs.
Technical Parameters
| Parameter / Model | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|---|---|---|---|---|---|---|---|---|
| Drive power of internal fan（kW） | 5.5 | 7.5 | 11 | 15 | 22 | 30 | 37 | 55-75 |
| Drive power of classifier （kW） | 2.2 | 3.0 | 4.0 | 5.5 | 7.5 | 11 | 15 | 22 |
| Max. classifier speed （rpm） | 800 | 670 | 560 | 475 | 400 | 355 | 315 | 280 |
| Max. feed rate （t/h） | 5 | 8 | 12 | 17 | 24 | 30 | 38 | 48 |
| Fineness D97 （μm） | 32-200 | 32-200 | 32-200 | 32-200 | 40-200 | 40-200 | 45-250 | 45-250 |
Applications and Case Studies
The EPIC CTC Series Centrifugal Classifier is a solid choice for various powder classification needs across industries in the world. Here’s where it shines:
- Quartz Powder Grading: Perfect for separating quartz powder between 32-250μm, ensuring fine, consistent particle size for uses like glass making or electronics.
- Fly Ash Classification: Helps power plants and cement manufacturers achieve precise fly ash particle sizes, improving concrete strength and reducing waste.
- Mineral Processing: Ideal for sorting mineral fines, enhancing ore quality and recovery rates in mining operations.
These classifiers deliver reliable, consistent grading and are proven in heavy-duty use cases where accuracy and durability matter most. If you’re working with dry powders and need sharp particle size classification, EPIC’s centrifugal air separator fits the bill.
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