1. Overview
The Feed Pellet Coating Machine is a critical post-processing device in modern feed production, leveraging advanced post-addition technology to spray nutrients, pharmaceuticals, and functional ingredients onto the surface of formed pellets. It can precisely apply liquids such as oil, fat, enzymes, vitamins, organic acids, and microorganisms—directly addressing the limitations of “pre-mixing additives” and significantly improving feed quality, palatability, and nutritional value.
As a core piece of equipment for high-end feed processing, it is widely adopted in commercial feed factories, intensive breeding bases, and specialty feed production lines, becoming a key driver for upgrading feed product competitiveness.
2. Core Value: Why Use Post-Pelleting Coating?
Traditional pre-mixing of additives (e.g., fat, heat-sensitive vitamins) often compromises feed quality and equipment efficiency. The coating machine’s post-pelleting technology solves these pain points, delivering three irreplaceable benefits:
2.1 Maximize Additive Efficacy & Dosage
- Heat-Sensitive Nutrient Preservation: Vitamins, enzymes, and microorganisms are easily degraded by high temperatures during pelleting. Post-pelleting spraying avoids thermal damage, retaining up to 95% of nutrient activity (vs. 60-70% for pre-mixing).
- Increased Fat Addition: Spraying fat after pelleting allows additive amounts of 2%-7% (even up to 10% for high-energy feed) without softening pellets or reducing firmness—critical for high-energy feed for fattening livestock and aquatic creatures.
2.2 Improve Feed Physical Properties & Safety
- Reduce Equipment Residue & Contamination: Fat sprayed post-pelleting minimizes adhesion to pellet mill dies, rollers, and conveyors, cutting cross-contamination risks between different feed formulas by 80%.
- Enhance Pellet Integrity: Fat penetrates pellet pores during storage and transportation, reducing dust generation and particle breakage by 15%-20%—lowering feed waste and improving storage stability.
2.3 Boost Palatability & Animal Performance
- Uniformly coated nutrients and flavors enhance feed palatability, increasing animal feed intake by 10% or more.
- Targeted spraying of pharmaceuticals (e.g., probiotics, immune enhancers) improves disease resistance in young livestock and aquatic fry, reducing mortality rates.
3. Core Features & Advantages
3.1 Precision Control & Uniform Spraying
- Computerized Dosage Control: Additive quantity is regulated by an intelligent control system, with an error margin of only ±1%—ensuring consistent nutrient content across batches.
- Drum-Type Atomization Spraying: The rotating drum tumbles pellets evenly, while high-pressure atomization nozzles produce tiny droplets (50-100μm) that fully contact pellet surfaces. Spraying uniformity rate reaches 96%, eliminating uneven nutrient distribution.
3.2 Superior Coating Effect
- The coated pellets have a smooth surface, strong adhesion, and improved water resistance—critical for aquatic feed (reducing nutrient leaching) and humid storage environments.
- Fat and liquid additives permeate into pellet interiors over time, forming a “nutrient reservoir” that enhances long-term nutritional value.
3.3 Easy Operation & Low Maintenance
- Advanced streamlined structure with a user-friendly touchscreen interface: operators can set additive dosage, spraying rate, and drum speed with one click.
- Modular design allows quick disassembly of the liquid storage pot, spraying nozzles, and drum for cleaning—avoiding residue buildup and cross-contamination.
3.4 Energy-Saving & High Compatibility
- Equipped with a 1.5Kw additive gear pump, it consumes minimal power while supporting a wide output range (2-20t/h)—matching small-to-large feed production lines.
- Compatible with multiple liquid additives (oil, enzymes, vitamins, etc.) and pellet types (cylindrical, irregular), with no need for equipment modification.
4. Application Scenarios
4.1 Feed Industry (Core Application)
- Livestock Feed: Spray fat, vitamins, and probiotics onto pig, chicken, and cattle pellets to improve weight gain and immunity (e.g., high-fat feed for finishing pigs).
- Aquatic Feed: Apply oil and water-resistant agents to fish/shrimp pellets to enhance water stability and nutrient retention, reducing water pollution.
- Specialty Feed: Targeted spraying of pharmaceuticals or functional ingredients for young livestock (e.g., chick starter feed with immune enhancers).
4.2 Other Industries
- Compound Fertilizer: Spray binders or slow-release agents onto fertilizer granules to improve pellet strength and nutrient release control.
5. Technical Parameters
| Model | Liquid Storage Pot Volume | Power of Additive Gear Pump | Additive Quantity Error | Uniformity Rate | Additive Amount | Spraying Ratio | Capacity |
|---|---|---|---|---|---|---|---|
| SYPG | 1T (Maximum) | 1.5Kw | ±1% | 96% | 0.04-0.14t/h | 2%-7% | 2-20t/h |