Counterflow Pellet Cooler Suppliers
Home / Product Center / Cooler

Product Category

Contact Us

Submit

Product Catalog

Download

Custom Animal Feed Pellet Cooler Manufacturers

Cooling equipment is primarily used for coolin  granular materials. The cooling equipment utilizes a design where the cooling air flows in the opposite direction to the material flow, ensuring slow cooling from bottom to top, effectively reducing particle breakage and improving product quality. The cooled material temperature is only 3-5°C higher than ambient temperature, fully demonstrating its excellent cooling efficiency.  equipment is widely used in the maturation of feed, especially in processing extruded aquatic feed, ordinary pelleted feed, and food products, solving drying challenges. The built-in hot air circulation system ensures efficient heat transfer while maintaining low energy consumption and cost, significantly reducing production costs. This series of equipment is typically compact, easy to operate, energy-efficient, and has a high processing capacity. It can be customized to meet the precise temperature, humidity, and processing speed requirements of different materials, ensuring both production efficiency and product quality.

We provide comprehensive support including:

Service Item

Project Implementation

Scope 1

From initial requirement analysis and process design to equipment manufacturing, installation, and commissioning, we deliver full turnkey project solutions.
Our experienced project team ensures seamless coordination at every stage, enabling efficient execution and guaranteeing that each project is completed on schedule and operates reliably from day one.

After-Sales Service

Scope 2

We have a dedicated after-sales service team committed to supporting our customers throughout the entire lifecycle of the equipment.
Through regular follow-ups, remote diagnostics, and a rapid response mechanism, we promptly resolve operational issues and ensure stable, uninterrupted production.

Spare Parts Supply

Scope 3

Common wear parts and critical components are kept in stock for immediate dispatch.
This enables fast replacement and minimizes downtime, ensuring the continuous and efficient operation of your production line.

Training & Technical Support

Scope 4

We provide comprehensive operational training and maintenance guidance to help your team quickly master equipment operation and process optimization.
Our goal is to empower customers to achieve efficient and independent plant operation.

About Us

Focus·Innovation·Integrity

Goldlong Machinery And Engineering Co., Ltd.
As one of the leading China custom Counterflow Pellet Cooler manufacturers and Animal Feed Pellet Cooler suppliers, Goldlong Machinery is specialized in feed machinery, grain dryer and compound fertilizer machinery, and provides the projects with turn-key basis, from design, engineering, manufacturing, installation, commissioning to after-sale service, and we also provide spare parts and the training for machinery operation, maintenance, technical support. In addition, we offer Pellet Cooling Machine for sale.

  • 0㎡

    Factory Area

  • 0

    Established In

  • 0+

    Employees

Read More
What’S News.

Pay Attention To Our
Latest News and Exhibitions

View All News
Industry knowledge

Counter-flow Pellet Cooling for Complete Feed Lines

Goldlong Machinery And Engineering Co., Ltd. builds counter-flow pellet coolers for feed mills producing poultry, livestock, aqua and extruded feed. As Custom Animal Feed Pellet Cooler Manufacturers, we supply the SKLN series from our 14,000 m² manufacturing facility in Liyang, Jiangsu, China, and integrate it into turnkey feed milling projects.

After the Pellet Mill or Extruder, pellets are hot and moist. The cooler removes that heat and moisture before screening, crumbling or bagging, so the finished pellets remain stable, hard enough for handling and safe for storage.

Counter-flow Cooling, Without Thermal Shock

In a counter-flow cooler, ambient air moves upward while pellets move downward. The hottest, wettest pellets at the bottom meet the warmest, most humid exhaust air; pellets are therefore cooled gradually from the bottom of the bed toward the top. This avoids the surface cracking that can occur when cold air hits hot pellets directly.

  • Pellet breakage and fines are reduced because the pellet surface is not thermally shocked.
  • Air and material flow in opposite directions, giving more uniform moisture removal through the bed.
  • The closed-loop feeder with a large air intake area provides a strong cooling effect without complicating the material inlet.
  • Finished pellets are typically only 3–5°C above ambient temperature, which is a practical target for bagging and bulk storage.
  • Low power demand and a compact footprint make the SKLN series easy to place above downstream conveying equipment.

SKLN Series Range and Technical Data

We size the cooler by live volume and by the output of the upstream pellet mill. Each SKLN model is fitted with two level indicators and has a cooling time of 8–15 minutes; the correct cycle depends on pellet diameter, formula, moisture and ambient humidity.

Model Capacity (t/h) Power (kW) Volume (m³) Cooling Time (min)
SKLN1.5 1–3 0.75+1.1+0.55 1.5 8–15
SKLN2.5 3–6 1.1+1.5+0.55 2.5 8–15
SKLN4 6–10 1.5+0.55 4 8–15
SKLN6 10–15 1.5+0.55 6 8–15
SKLN8 15–20 1.5/2.2+0.75 8 8–15
SKLN10 20–25 2.2+0.75 10 8–15
SKLN12 25–30 2.2+0.75 12 8–15

The discharge side uses a linear reciprocating grid-type unloading mechanism for smooth, adjustable discharge, with a slide valve option for reliable operation and minimal residue. The SKLN range also supports a special coercive discharging system for materials that tend to stick or bridge in the cooling bed.

Application Fit Around the Feed Line

Poultry and livestock pellets

For standard pelleted feed, the cooler runs continuously after the pellet mill. The SKLN4, SKLN6 and SKLN8 models cover typical single-line capacities from 6 to 20 t/h, while the SKLN10 and SKLN12 handle high-output poultry lines.

Extruded aqua feed

Extruded aqua feed leaves the extruder with higher moisture and needs gentle, controlled cooling to set the structure and reduce internal stress. The counter-flow design and 8–15 minute cooling cycle suit floating and sinking feed lines.

Food, biomass and heat-sensitive materials

The same range is used for granular food products, biomass pellets and other materials where direct cold-air contact would damage the surface. We configure airflow and discharge speed to protect fragile particles and maintain production efficiency.

Configuration Options and Automation Integration

The SKLN series can be supplied as a stand-alone machine with its own fan and discharge control, or as part of a complete feed mill line where the cooler is interlocked with upstream and downstream equipment.

  • Level indicators monitor the pellet bed and control the feed gate to avoid overfilling or running the cooler empty.
  • The reciprocating grid discharge and slide valve configuration is selected according to pellet type and moisture behavior.
  • We design, install and commission electrical control systems as part of turnkey projects, so the cooler starts, stops and faults in sequence with the rest of the line.
  • Cooling time can be adjusted by regulating discharge speed and airflow, giving operators a practical control lever for final moisture and pellet temperature.

Commissioning includes safe start-up and shut-down sequences for the fan, discharge mechanism and connected equipment, so your operators understand the normal running conditions before handover.

Quality Control, Installation and After-Sales Support

Our workshop runs under ERP management to control production operations and equipment utilization. Before shipment, each cooler is inspected for performance, stability and safety, and the assembled system is operationally tested.

We deliver coolers as part of turnkey projects: design, engineering, manufacturing, installation, commissioning and after-sales service are handled by one project team. The service scope includes operator training, maintenance guidance, remote diagnostics and rapid response, with common wear parts kept in stock to minimize downtime.

Goldlong has supplied machinery and turnkey projects across Europe, Asia and Africa, including Russia, Romania, Indonesia, New Zealand, the Philippines, Bangladesh, Pakistan, Iran, Syria, Jordan, Saudi Arabia and Sudan. We use that project experience to match the cooler layout to local ambient conditions and site constraints.

Information We Use to Configure Your Solution

For a precise proposal, please share the following project data with our engineering team:

  • Target capacity in tonnes per hour after the pellet mill or extruder.
  • Material type, formula, pellet diameter and bulk density.
  • Moisture content entering the cooler and target moisture after cooling; ambient temperature and humidity.
  • Model and output of the upstream pellet mill or extruder, plus the downstream equipment such as a crumbler, rotary sifter or bucket elevator.
  • Available height for the cooler, fan position and routing of the air duct.
  • Electrical supply voltage and frequency, and whether the line control system should be integrated with an existing PLC or HMI.
  • Quality target for cooled pellets, including maximum pellet temperature above ambient and acceptable fines level.

With that data, we configure the SKLN model, airflow, discharge speed and control interface, and provide the cooler as a stand-alone export package or as part of a full turnkey feed line.

Frequently Asked Questions

Which SKLN cooler do I need for a 10 t/h pellet line?

The SKLN6 is the standard starting point for 10–15 t/h of cooled pellets. Final selection depends on pellet diameter, moisture, ambient conditions and the required cooling time; we confirm the model when you send the feed rate and formula data.

Can the counter-flow cooler handle extruded aqua feed?

Yes. The gradual, counter-flow cooling action is well suited to extruded aqua feed because it avoids surface cracking and sets the pellet structure while moisture is released evenly. The special coercive discharging system also helps with materials that are sticky or slow to discharge.

What is the advantage of counter-flow cooling compared with direct cold-air cooling?

Counter-flow cooling uses the warmest exhaust air to meet the hottest pellets, so the pellet surface is not shocked by cold air. This reduces fines, improves pellet hardness and gives a more uniform final moisture level across the full cooling bed.

Do you support installation, commissioning and spare parts supply?

We support the full lifecycle. Turnkey projects include installation, commissioning and operator training, and our after-sales service covers remote diagnostics, maintenance guidance and rapid response. Common wear parts are kept in stock for fast dispatch.

What information should I send for a quotation?

Send the target cooled capacity, material type and pellet diameter, moisture entering and target moisture, ambient temperature and humidity, available height, electrical supply details, and the model of the upstream pellet mill or extruder. That allows us to size the model, fan and control interface accurately.

Related Products and Categories

Our portfolio also includes Wholesale SKLN Series Counter-flow Cooler Factory for applications with different operating ranges, interfaces or integration requirements.

X Facebook
Product Center News