1. Overview
The SWFL Series Ultra Fine Feed Hammer Mill is a state-of-the-art superfine grinding device designed for large, medium, and small feed processing factories. It specializes in grinding pre-treated coarse materials (corn, broomcorn, wheat, rice, etc.—after sieving, magnetic separation, and mixing) into 80-200 mesh ultra-fine powder, meeting the strict fineness requirements for high-end feed.
Its core advantage lies in integrating crushing, air classification, and separation into one machine, paired with a high-precision grading system and water-cooled bearings. This makes it ideal for producing feed for small aquatic animals (shrimp, turtle, eel) and adaptable to food, chemical, building materials, and pharmaceutical industries—becoming a key equipment for upgrading ultra-fine powder production.
2. Core Value: Why Ultra Fine Grinding Matters for Feed
Ordinary grinding (≤50 mesh) fails to meet the needs of small aquatic animals and high-digestibility feed. The ultra fine feed hammer mill solves critical industry pain points, delivering three irreplaceable values:
2.1 Improve Feed Digestibility & Animal Growth
Small aquatic animals (e.g., shrimp fry, juvenile eel) have underdeveloped digestive systems. Ultra-fine powder (80-200 mesh) increases the specific surface area of feed, accelerating nutrient dissolution and absorption—raising feed conversion rate by 15-20% and reducing growth cycles.
2.2 Reduce Water Pollution & Feed Waste
Ultra-fine powder binds more tightly during pelleting, reducing nutrient leaching in water (by 30% vs. ordinary powder). This lowers water eutrophication and avoids feed waste caused by unabsorbed nutrients, aligning with eco-friendly aquaculture trends.
2.3 Enable Continuous, High-Standard Production
The built-in water cooling system prevents bearing overheating, supporting 24/7 continuous operation without shutdown. The adjustable grading system ensures stable fineness (80-200 mesh arbitrary regulation), meeting consistent quality standards for large-scale feed production.
3. Working Principle: Integrated “Crushing-Grading-Separation”
The mill’s efficiency stems from its compact, multi-functional structure, which completes three processes in one machine:
- Precision Feeding: Pre-treated raw materials (diameter <1mm, moisture <12%) are fed evenly by the feeding motor (0.55-2.2KW), avoiding overload of the crushing host.
- High-Speed Crushing: The crushing host’s rotor (420-1280mm diameter) rotates at 1558-4865rpm, driving high-strength alloy steel blades to impact and shear materials into fine particles.
- Air Classification: The built-in high-precision micro wind grading system separates particles by size: qualified ultra-fine powder (80-200 mesh) is discharged, while oversize particles are recirculated to the grinding chamber for re-crushing.
- Continuous Cooling: The main bearing’s water cooling system dissipates heat in real time, keeping operating temperature stable and ensuring non-stop production.
4. Core Features & Advantages
4.1 Ultra-Fine, Adjustable Fineness
- High Precision Grading: Grinding fineness ranges from 80 to 200 mesh, adjustable via the grading motor—meets the needs of shrimp (100-120 mesh), turtle (80-100 mesh), and eel (150-200 mesh) feed.
- Uniform Particle Size: The grading system ensures consistent powder size, with no coarse-fine segregation—critical for pellet quality and nutrient uniformity.
4.2 Integrated Design & High Efficiency
- One-Machine Multi-Process: Combines crushing, grading, and separation in a single body, reducing equipment footprint by 40% and simplifying production line layout.
- High Capacity & Low Consumption: Despite ultra-fine output, it maintains efficient throughput (0.2-3.5t/h) with low power consumption (22-132KW)—30% more energy-saving than traditional ultra-fine grinders.
4.3 Durable & Continuous Operation
- Wear-Resistant Blades: High-strength alloy steel blades resist wear, with a service life 2x longer than ordinary steel blades—lowering replacement costs.
- Water Cooling System: Main bearings are cooled by circulating water, preventing overheating during long-term operation and enabling 24/7 continuous production.
4.4 Flexible & Versatile Configuration
- Two Machine Types: Split type (easy to disassemble for maintenance in narrow spaces) and integral type (compact for automated production lines) to meet different workshop needs.
- Multi-Industry Adaptation: Beyond feed, it grinds ultra-fine powder for food (spices), chemicals (pigments), and pharmaceuticals (herbal powders)—expanding application scenarios.
5. Application Scenarios
5.1 Feed Industry (Core Use Case)
- Aquatic Feed: Produces 80-200 mesh ultra-fine powder for shrimp, turtle, eel, and other small aquatic animals—improving digestibility and reducing water pollution.
- Specialty Poultry Feed: Grinds fine powder for chick or duckling starter feed, ensuring uniform nutrient dispersion and easy ingestion.
5.2 Other Industries
- Food: Grinds spices (pepper, cinnamon) or cereal powder into ultra-fine particles for instant food.
- Chemical/Building Materials: Processes mineral powders (calcium carbonate) into ultra-fine additives for coatings or plastics.
- Pharmaceutical: Grinds herbal materials into fine powder for capsules or tablets.
6. Working Conditions & Maintenance Guidelines
6.1 Required Working Conditions
- Installation Environment: Install in basement or ground floor, with ambient temperature -5℃ to 40℃—avoid damp or dusty areas.
- Power Supply: Steady voltage (allowable deviation ±5%) to ensure stable motor operation.
- Raw Material Requirements: Feed material diameter <1mm, moisture <12%—pre-treatment (sieving, drying) is required to avoid blockages.
- Production Line Matching: Compatible with feed pellet mills and auxiliary equipment to form a complete ultra-fine feed production line.
6.2 Routine Maintenance Tips
- Lubrication: Regularly add lubricating oil to bearings and transmission parts to ensure smooth operation.
- Wear-Part Inspection: Check alloy steel blades and grading screens monthly; replace worn parts to maintain grinding efficiency.
- Cooling System: Clean the water cooling pipeline quarterly to prevent scale buildup and ensure heat dissipation.
- Shutdown Protection: After use, clean the grinding and grading chambers; cover with tarpaulin if stored long-term to prevent dust and moisture damage.
7. Technical Parameters
| Model No. | Output (t/h) | Main Power (kw) | Rotor Diameter (mm) | Rotor Speed (rpm) | Sieving Motor Power (kw) | Feeding Motor Power (kw) |
|---|---|---|---|---|---|---|
| AMSSWFL42 | 0.2-0.6 | 22 | 420 | 4865 | 4 | 0.55 |
| AMSSWFL75 | 0.4-1.2 | 45 | 750 | 2598 | 5.5 | 0.75 |
| AMSSWFL102 | 0.6-2.5 | 75/90 | 1020 | 1878 | 7.5 | 0.75 |
| AMSSWFL128 | 0.8-3.5 | 110/132 | 1280 | 1558 | 15 | 2.2 |