Fish Feed Dryer Machine

Continuous Belt Fish Feed Dryer. Multi-layer Fish Feed Drying Machine

The fish feed dryer machine (also called a feed pellet drying machine) is an essential piece of equipment in the fish feed production line. After extrusion or pelletizing, fish feed pellets contain high moisture (18–20%) and are at high temperatures (70–90°C). Without drying, pellets are prone to mold growth, nutrient loss, and reduced shelf life. The fish feed dryer ensures that pellets are dried to a safe moisture level of 8–12%, improving storage stability and maintaining pellet quality. We supply fish feed pellet dryers with capacities ranging from 300 kg/h to 1,500 kg/h.

A fish feed dryer is usually used in combination with a fish feed cooler in the fish feed pellet line. Fish feed pellets are transported from the fish feed extruder to the pellet dryer machine, and are conveyed on the stainless steel movable multi-layer mesh belt to complete the drying process. It features efficient continuous fish feed pellet drying work. It can also be used for drying other materials, such as grain, food, vegetables, medicine, etc.

Advantages of Using Fish Feed Dryers

• Reduces feed pellet moisture content to safe storage levels.
• Prevents mold growth, spoilage, and nutrient loss.
• Increases pellet durability and shelf life.
• Supports continuous large-scale production.

Parameters of Fish Feed Dryer

• Multi-layer Mesh Belt Design – Maximizes drying efficiency and ensures uniform drying.
• Adjustable Drying Temperature & Time – Adapts to different pellet sizes and moisture levels.
• Energy Saving & High Efficiency – Uses hot air circulation and thermal insulation to reduce energy loss.
• Automatic Feeding & Discharging – Continuous drying system for high productivity.
• Durable Structure – Built with stainless steel mesh belts and galvanized panels for long life.
• Hygienic & Safe – Designed to meet food/feed safety standards with easy cleaning.

Continuous Multi-layer Belt Dryer – Fish feed pellets move through multiple mesh layers, ensuring uniform drying

The fish feed dryer includes circulating fans, a heating device, a fresh-air-suction-system, and an exhaust-exiting system. Operators can control the temperature, humidity, and exhaust gas recirculation rate, which ensures the reliability of the fish feed pellet dryer and the optimization of the operating conditions. The drying process is carried out in a fully sealed box, effectively avoiding dust leakage. Damp materials are evenly spread on the mesh belt, which is driven to move by a transmission device in the dryer machine. From bottom to top, hot air flows through the mesh belt, and fish feed pellets fall on it. In the drying process, heat exchange is sufficient & uniform, with drying efficiency being extremely high.

1. Freshly extruded or pelleted fish feed enters the dryer through a feeding conveyor.
2. A hot air circulation system passes heated air through the layers of pellets.
3. Moisture evaporates uniformly while heat is distributed evenly.
4. Pellets are discharged at a stable temperature, ready for cooling and packaging.

The fish feed dryer machine is often used along with:

• Fish feed extruder machine (for pellet production)
• Fish feed cooler (for stabilizing pellet temperature after drying)
• Fish feed packing machine (for final packaging and distribution)

Head of the feed drying machine
The machine head is composed of two driven rollers, a tightener, a feed inlet, and an outlet.
Passive bearing bears the tension and determine the tightness of the mesh belt, so bearings at both ends of the passive rollers should be regularly lubricated with high-temperature (above 200℃) lubricating grease, to ensure the normal operation of the dryer.
The tightener is to adjust the mesh belt tightness. In the first installation, the mesh belt should be tightened, and after heating up, tightened again (because of the thermal expansion).

Feed Drying Section
This stage is the actual working area of material drying, blast pipe, and discharge pipe being installed on the top. Hot air flows into the underpart of the inner chamber from both sides, then is extracted by the wind turbine from the middle. There are control valves being installed on the air inlet and outlet to adjust air velocity.

Dryer end
The transmission part is installed at the end of the fish feed pellet dryer. The tightness of the transmission chain can be adjusted by adjusting the position of the gear reducer. The transmitting gear on the other side of the gear reducer will also inject lubricating oil to extend its service life.