Counterflow Feed Cooler – 3-20t/h for Feed Pellet Cooling

The SYLN Series Counterflow Cooler is professional, high-efficiency cooling equipment specially designed for high-temperature, high-humidity feed pellets after extrusion and granulation. Employing mature countercurrent cooling technology, it solves common problems of pellet cracking, uneven cooling, high material residue, and poor storage performance found in traditional cooling equipment. With low power consumption, high automation, and stable operation, it is an essential core component for standardized, high-quality feed production lines.

Working Principle

Unlike traditional straight-line air cooling, the SKLN Series utilizes countercurrent heat exchange technology:

• Cold air flows upward through the cooling bin

• Hot feed pellets fall downward by gravity

• Full, gradual heat and moisture exchange occurs

• No direct quenching of high-temperature pellets by cold air

This advanced principle prevents pellet surface cracking, peeling, and deformation, ensuring smooth, complete pellet appearance.

Core Product Features

1. Advanced Countercurrent Cooling – No Pellet Cracking
Countercurrent heat exchange technology avoids sudden temperature shock to hot pellets, thoroughly preventing surface cracking, peeling, and deformation while ensuring smooth, complete pellet appearance and structural integrity.

2. Uniform Material Spreading – Consistent Cooling Effect
Equipped with a new rotary spreading device that evenly scatters materials in the cooling bin, forming a uniform-thickness material layer. Eliminates dead cooling angles, ensuring every pellet achieves consistent cooling and dehumidification.

3. Octagonal Bin Design – Ultra-Low Material Residue
Optimized octagonal integral structure effectively reduces material sticking and dead corners compared to traditional square bins. Streamlined bin design enables smooth material discharge, minimizing residual materials and preventing cross-contamination between batches.

4. Stable Slide Valve Discharge Mechanism
Slide valve type reciprocating linear driving structure ensures stable, reliable operation with low failure rate. Precise discharge stroke controls uniform feeding and discharging speed, reducing bottom material residue and improving continuous production efficiency.

5. Excellent Cooling & Fresh-Keeping – Long Storage Life
After countercurrent cooling, finished pellet temperature is stably controlled within ambient +3°C to +5°C, with moisture reduced to standard storage range. Effectively inhibits mold growth and fat oxidation, greatly extending feed shelf life and maintaining palatability.

6. High Automation & Energy Saving
Intelligent automatic material level control system adjusts air volume and discharging speed according to material feed volume, enabling unattended automatic operation. Low overall power consumption reduces long-term production costs.

Technical Specifications

Application

Key Advantages