Ultrafine Grinding of Cellulose Acetate with Yinda YDWF Air Classifier Mill
Cellulose acetate is a semi-synthetic polymer derived from cellulose through acetylation. Due to its excellent biocompatibility, film-forming ability, mechanical strength, and thermal stability, it is widely used in industries such as pharmaceuticals, membranes, plastics, coatings, optical materials, and cigarette filters.
In many of these applications, cellulose acetate is required in powder form, with specific particle size ranges to meet downstream processing requirements like extrusion, coating, or tablet production. For industrial-grade processes, the typical particle size needed falls in the range of 100 to 400 mesh (approximately 150 to 38 microns). Achieving this level of ultrafine grinding consistently—especially with a thermally sensitive material like cellulose acetate—requires specialized equipment.
Cellulose Acetate
Challenges in Grinding Cellulose Acetate
Cellulose acetate is sensitive to heat, and conventional milling methods often generate high temperatures due to friction and shear forces. These conditions can lead to:
l Softening or partial melting of the material
l Agglomeration and poor flow characteristics
l Degradation or discoloration
l Inconsistent particle size distribution
These challenges make ultrafine grinding of cellulose acetate a demanding task that requires both high-performance milling technology and effective temperature control.
Yinda YDWF Series Cellulose Acetate Air Classifier Mill: A Tailored Solution
Yinda Machinery’s YDWF Series Cellulose Acetate Air Classifier Mill is a high-efficiency ultrafine grinding system designed for heat-sensitive and high-value industrial materials. It combines mechanical impact grinding with a dynamic internal air classifier to produce consistently fine powders in a fully integrated, continuous process within an enclosed system.
YDWF Cellulose Acetate Ultrafine Grinding Machine
Key Features of the YDWF Series Cellulose Acetate Moulin classificateur d'air:
- Integrated Air Classifier:
The built-in classifier wheel enables precise control over particle size distribution. The YDWF system is specifically engineered to produce fine powders with D90 values typically between 150 and 38 microns, which corresponds to approximately 100 to 400 mesh—the optimal range for most industrial applications of cellulose acetate and similar materials.
- Screenless Design:
Unlike traditional mills, the YDWF system uses a rotor-stator mechanism without screens or sieves, reducing the risk of clogging or material buildup.
- High Throughput and Efficiency:
Engineered for industrial use, the YDWF series can handle a wide range of batch or continuous production needs while maintaining uniform particle size and low operational cost.
- GMP and Industrial Configurations Available:
The mill is available in food-grade and pharmaceutical-grade designs, with material options including SS304 and SS316L stainless steel, and internal finishes up to Ra<0.6μm for hygiene-critical applications.
- Dust-Free, Fully Enclosed Operation:
The YDWF system operates in a fully enclosed structure and can be integrated with pulse dust collectors and rotary airlocks to effectively capture fine particles, reduce dust emissions, and maintain a clean, safe working environment that meets industrial hygiene standards.
https://www.youtube.com/watch?v=EkITqVY7rA0
Temperature Control: Optimized Cooling for Heat-Sensitive Materials
To meet the processing requirements of thermally sensitive materials like cellulose acetate, the YDWF Series Air Classifier Mill can be equipped with an industrial air cooling chiller for effective temperature control.
Industrial Air Cooling Chiller
How It Works:
The YDWF mill can be equipped with an industrial air cooling system that introduces chilled airflow into the grinding chamber. This helps dissipate heat during operation and protects sensitive materials from thermal damage, ensuring stable and efficient performance.
connecting pipe
Proven Performance for Cellulose Acetate
The YDWF Series consistently produces uniform powders within the 100–400 mesh range, with no agglomeration or melting. It ensures high yield, good flowability, and stable quality—ideal for downstream processes like extrusion, coating, compression, and blending.
Here’s a test we did for a customer who requested cellulose acetate to be ground to 120 mesh. Check out the video for the result.
https://www.youtube.com/shorts/_NuIaue6mT0
Flexible Model Options for Different Production Scales
To meet the diverse production needs of our customers, Yinda Machinery offers multiple models of the YDWF Series Air Classifier Mill—from small-scale units for laboratory or pilot use to larger systems for medium and high-volume industrial production.
Customized solutions are also available to suit specific material properties and process requirements. Please refer to the following technical specifications for detailed information on each model.
| Modèle | YDWF-15 | YDWF-20 | YDWF-30 | YDWF-60 | YDWF-80 | YDWF-100 | YDWF-120 |
| Capacité(kg/h) |
20-100 |
50-200 |
100-500 |
200-800 |
300-1000 |
800-1500 |
1500-2000 |
| Feeding size(mm) | ≤10 | ||||||
| Finesse de concassage (maille) | 100-400 mesh | ||||||
| Motor power (kw) | 14.87 | 27.3 | 42.12 | 70.45 | 114 | 134 | 150 |
| Dimension(size) | 3000×1600×2600 | 3500×1900×3300 | 3800×1900×3300 | 5000×2600×4300 | 5800×2800×4300 | 5800×3000×4300 | 5800×3200×4300 |
About Yinda Machinery
Yinda Machinery is a professional manufacturer of powder processing equipment, specializing in grinding, mixing, drying, conveying, and packaging solutions for the pharmaceutical, food, chemical, and materials industries. We provide machines from lab-scale to industrial-scale, with full customization options to meet your specific production needs. Our equipment is backed by international certifications, strict quality control, and a commitment to long-term customer support.
Conclusion
Yinda’s YDWF Series Air Classifier Mill is a reliable solution for ultrafine grinding of cellulose acetate and other heat-sensitive materials. With stable performance, precise particle control, and efficient cooling, it delivers consistent powder quality for demanding industrial applications.
We provide free testing, FAT documentation, and installation support to help you get started.
If you’re interested in our equipment, feel free to contact us:
Contact Person: Dennie
Phone/WhatsApp: 86 139 1419 2807
Email: dennie@yindamachiney.com
Website: www.yindamachinery.com