25–30 T/H Large Capacity Pellet Cooler in Argentina

The project focused on cooling compound feed pellets made from maize, soybean meal, wheat bran, and other ingredients commonly used in Argentine livestock feed formulations. Depending on the production batch, the finished products included approximately 3–4 mm poultry feed pellets and larger pellets for selected cattle feed applications.

The customer's priority was to reduce the time hot pellets spent waiting between process stages, limit unnecessary pellet breakage, and keep the downstream conveying and bagging equipment supplied at a steadier rate. The purchase was therefore a targeted capacity upgrade involving one cooling machine, rather than a complete new feed mill.

Why the Existing Cooling Stage Became a Production Constraint

Argentina has a substantial agricultural and livestock economy, supported by domestic grain production, poultry farming, beef production, and commercial feed manufacturing. Maize and soybean-derived ingredients are important raw materials for many compound feed formulas. For feed manufacturers operating in this environment, production planning often involves more than one product type, with different pellet specifications and customer delivery schedules placing varying demands on the processing line.

At this facility, the pellet mill could form the required products, but the cooling stage had less operating capacity than the upstream pelleting section during periods of heavy production. When the pellet mill ran continuously, hot material accumulated faster than the downstream process could comfortably handle it. Operators had to pay closer attention to material flow, and the factory could not always maintain the desired production rhythm through cooling, screening, and packaging.

Freshly pressed feed pellets retain heat and moisture from conditioning and compression. They need sufficient cooling before being conveyed into storage bins or packed into bags. If pellets are packed while excessively warm, temperature differences may contribute to condensation under unsuitable storage conditions. Poorly controlled handling can also increase fines and broken pellets, affecting finished-product appearance and the amount of saleable intact feed.

The manufacturer therefore decided to increase cooling capacity rather than purchase another pellet mill. A properly matched large-capacity pellet cooler could help the plant manage the output of its existing pelleting equipment and reduce the likelihood that the cooling stage would restrict normal production. This investment approach also allowed the business to retain serviceable machinery and focus spending on the process section that needed improvement.

Selected Equipment: SKLF28*28 Counterflow Pellet Cooler

For this project, the selected model is the RICHI SKLF28*28 counterflow pellet cooler, with a rated throughput of 25–30 T/H and a listed drive power of 2.2 kW. This model provides a higher nominal processing capacity than the smaller SKLF units and is suitable for consideration in a large commercial feed mill where the cooling section must handle substantial pellet volumes.

The cooler uses a counterflow arrangement: cooling air passes through the material in the opposite direction to the movement of the pellets. This allows heat to be removed progressively as the pellets move through the cooling chamber. The listed typical cooling time is approximately 6–15 minutes, while the reference discharge temperature is around 3–5°C above ambient temperature under suitable operating conditions.

These figures are equipment reference specifications, not guaranteed results for every feed formula or production environment. Actual performance depends on the inlet pellet temperature, moisture content, pellet diameter, bulk density, airflow, material-bed depth, ambient conditions, and the coordination between the cooler and the rest of the production line. The final operating capacity should be confirmed against the customer's actual production data.

The SKLF28*28 was selected because the project called for a high-throughput cooling stage rather than a small auxiliary machine. Before final installation, the rated capacity must be checked against the pellet mill's actual output, the expected mix of pellet sizes, and the capacity of the downstream screening and conveying equipment. A cooler rated at 25–30 T/H cannot guarantee that the entire production line will continuously achieve the same output if another process stage has a lower capacity.

Cooling Maize- and Soy-Based Compound Feed Pellets

The main products handled by the plant are compound feed pellets for commercial livestock operations. A representative poultry feed formulation may use maize as the principal energy ingredient, soybean meal as a major protein source, wheat bran where appropriate, vegetable oil, mineral sources, a vitamin-mineral premix, and other ingredients selected to meet the nutritional specification.

The proportions vary according to whether the feed is intended for broilers, layers, or another poultry category. A broiler grower formula, for example, does not have the same nutritional targets as a layer feed. Cattle feed formulations also vary according to the production system, the animal's stage of growth, and the intended role of the supplement. The cooling machine handles the physical cooling of the finished pellets; it does not determine the nutritional composition of the formula.

For poultry feed, approximately 3–4 mm pellets are used here as a representative product specification. Selected cattle feed products may use larger diameters according to the formulation, feeding method, and customer requirements. The pellet mill die establishes the primary pellet diameter, while the cooler is selected according to throughput, pellet characteristics, and the required cooling performance.

After pelleting, the hot material enters the cooling chamber and passes through the controlled cooling process. Once discharged, the pellets can proceed to screening, where fines and unsuitable particles are separated, before the accepted product moves to storage or bagging. Cooling supports this sequence by reducing the temperature of the material before subsequent handling.

The plant may produce several feed formulas in a single operating schedule. A large-capacity pellet cooler can support this arrangement when its operating range is suitable for the products being handled. However, changes in pellet diameter, moisture, bulk density, and incoming temperature can influence the cooling process. The operating settings should therefore be checked when the product changes significantly.

How the Counterflow Design Handles High Pellet Volumes

A large-capacity pellet cooler must distribute material consistently across its cooling chamber. If the pellet bed becomes uneven, air may pass more readily through thinner areas, while thicker sections receive less effective airflow. This can create differences in discharge temperature even when the average processing rate appears acceptable.

The SKLF series uses a four-way adjustable distributor to spread incoming pellets across the chamber. This helps make use of the available cooling area and supports a more consistent material bed. Mechanical material-level control also helps regulate the amount of material held inside the machine, allowing the cooling process to operate with a more stable bed depth.

Another important feature is the swing-flap discharge mechanism, controlled by a flexible hydraulic transmission system. The mechanism is designed to discharge cooled pellets smoothly while maintaining a steady flow. This matters in a high-output feed mill because unnecessary impact during discharge can generate fines after the pellets have already been formed.

The octagonal cooling chamber is designed to reduce dead zones where feed may otherwise remain trapped. Its curved discharge hopper supports material flow and helps limit residual accumulation. Stainless steel is used for the cooler's upper section and rotary airlock feeder to improve corrosion resistance in areas exposed to feed dust and normal operating conditions.

For larger cooling models, an optional powered rotary leveling mechanism can help maintain a more uniform material layer. This option is worth evaluating where the production rate is high or where product consistency requires particularly careful control of material distribution. The final configuration should be determined from the actual process layout and operating requirements.

Why the Factory Chose a Large Capacity Pellet Cooler Instead of a New Line

Replacing an entire animal feed production line would have required a much broader investment and potentially a longer interruption to production. In this case, the customer needed to address a specific constraint in the post-pelleting process. The grinding, batching, mixing, and pelleting sections remained part of the existing operation, so purchasing one large-capacity pellet cooler was a more focused option.

The decision also allowed the factory to plan the upgrade around its existing product range. Rather than redesign every process stage, the technical assessment could concentrate on the incoming pellet transfer point, cooling capacity, discharge arrangement, and connection to the existing screening and packaging equipment.

The listed drive power of the SKLF28*28 is 2.2 kW. However, the complete cooling section may also require a cooling fan and associated auxiliary equipment, depending on the installation configuration. The plant's electrical assessment should account for these loads separately rather than treating the cooler's listed drive power as the total electricity demand of the cooling system.

RICHI offers counterflow cooler models across a broad throughput range, from 1–3 T/H for smaller operations to 30–40 T/H for high-output applications. This range gives feed manufacturers options for matching cooling equipment to their actual production needs. A larger model is not automatically the right choice: the cooler must suit the feed pellet mill, material properties, available installation space, and downstream equipment.

Integration with Screening, Conveying, and Packaging

Installing a large-capacity pellet cooling machine requires careful coordination with the rest of the feed line. The incoming conveyor must supply pellets at a suitable rate, and the cooler's discharge must connect properly to the next stage. If the screening machine or finished-product conveyor has insufficient capacity, increasing cooling capacity alone will not resolve the overall line constraint.

For this Argentine feed mill, the layout review should establish the feed pellet machine's actual production rate, the expected product mix, the available installation height, the required maintenance clearance, and the capacity of downstream equipment. These details help determine whether the SKLF28*28 can be integrated without creating a new bottleneck elsewhere.

RICHI can provide model selection guidance, dimensional drawings, interface information, and technical coordination for the proposed installation. Such preparation is useful when the machinery is being added to an operating plant, where access, structural support, and existing conveyor positions may restrict the available layout options.

During commissioning, the operator should check the material distributor, bed-level control, cooling airflow, and discharge mechanism under actual production conditions. Measuring pellet temperatures at the inlet and outlet helps establish whether the selected operating settings are suitable. If cooling is inconsistent, the team should review material distribution, airflow, feed rate, bed depth, and pellet condition before changing the target output.

Maintenance access also deserves attention during installation planning. Routine checks may include the discharge mechanism, drive components, seals, air passages, and areas where feed dust can accumulate. A layout that provides sufficient access makes inspection and cleaning easier and helps reduce avoidable interruptions.

Sea Shipment from Qingdao Port to Buenos Aires

The planned shipping route for this project is from Qingdao Port in China to the Port of Buenos Aires in Argentina. Buenos Aires is a major commercial port serving Argentina's import and export trade and is a practical destination port for industrial machinery shipments intended for the country's central commercial and agricultural regions.

Before dispatch, the equipment should be checked against the agreed order specifications, including the model designation, drive rating, supplied components, protective packing, and shipping documentation. Clear identification of the machine and its accessories helps the receiving party complete the arrival inspection and prepare for installation.

The importer should confirm the applicable machinery import requirements and shipping documents for the specific consignment before dispatch. Requirements can vary according to the shipment and current regulations, so they should be verified rather than assumed to be identical for every order.

Evaluating the Results After Installation

The practical value of a large-capacity pellet cooler is best evaluated using production data rather than rated throughput alone. During the initial operating period, the plant can record inlet and outlet pellet temperatures, monitor discharge stability, and check whether the screening and packaging stages receive material at a consistent rate.

The manufacturer can also compare the amount of fines generated during downstream handling and assess whether the finished pellets are suitable for the plant's usual storage and distribution practices. These observations help determine whether the cooling section is operating as intended and whether further adjustment is needed.

Performance should be reviewed across the main product types rather than measured using only one feed formula. Poultry and cattle feed pellets can differ in diameter, density, and moisture characteristics, so the operating conditions that work well for one product may not produce identical results with another. Maintaining separate operating records for the main products can help the plant establish suitable settings and identify recurring issues.

Any improvement in production efficiency, product quality, or operating costs should be confirmed through actual operating records. This provides a reliable basis for evaluating the investment and helps avoid attributing the performance of the entire poultry livestock feed production line to one machine alone.

A Targeted Capacity Upgrade for Argentina's Feed Manufacturing Market

The Large capacity pellet cooler in Argentina project illustrates the role of cooling equipment in a high-output compound feed plant. By adding one SKLF28*28 counterflow pellet cooler, the manufacturer can address a limitation in the post-pelleting stage while retaining its existing upstream machinery where appropriate.

The selected model has a rated throughput of 25–30 T/H, a listed drive power of 2.2 kW, and a typical cooling time of 6–15 minutes. Its counterflow cooling principle, adjustable distributor, mechanical material-level control, and smooth discharge mechanism are designed to support gradual heat removal and controlled material handling. Actual performance depends on the feed characteristics, airflow, operating conditions, and the capacity of the connected equipment.

For feed manufacturers considering a large-capacity pellet cooler, the most useful starting point is the actual production requirement. Pellet mill output, pellet diameter, inlet temperature, product moisture, downstream screening capacity, and installation layout all influence the final model selection. Reviewing these factors before purchase helps ensure that the cooler fits the production line rather than simply adding nominal capacity.

RICHI Machinery can assist with cooler selection, technical coordination, layout review, and project-specific equipment recommendations. Feed manufacturers planning a new installation or upgrading an existing production line can provide their target throughput, pellet sizes, typical inlet temperature, and current process layout to begin evaluating the appropriate cooling configuration.