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Specialized Aqua Feed

Aqua Feed

IDAH also designs and manufactures machinery for specialized aquafeed such as eel feed, crab feed, abalone feed, and frogs. With a high reputation in aquafeed production solutions, guaranteed to help you with your production.

Eel Feed

Eel Feed

The first AP pulverizers (AP-2) IDAH made was to make eel fish and it was in 1975. Eel feeds float and can be made in extrudate or powder form. Below shows a standard process to make eel feeds in powder form.

Raw Material

The raw material for eel feed mainly consists of high-quality fish meals and other high-protein ingredients. The material comes with an approximate moisture content of 10-12%

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Daily tank storage

Daily tank storage will contain the material needed for production that day.

Dosing and Weighing

The material will be dosed based on the formula.

First mixing system

In here, coarse and powdery materials are mixed.

Pre-grinding system

The well-mixed material enters the coarse grinding by hammer mill.

Post-grinding system

In this step, the coarse-grinded material is further ground to produce a fine powder.

Second Mixing (Mash Feed)

This is the last step in making an eel feed. Water, oil, and other liquid are added to the mixture.


Abalone feed

Crab and Abalone Feed

Crab and abalone feeds are made by pellet mills and they share a similar aquatic pelleting process line. The appearances are only different from the sizes (controlled by holes on pellet dies).

Raw Material

The raw material for crab and abalone feed consists of coarse and powdery material

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Pre-grinding

Optional step for coarse material.
Pre-grinding will lower the energy needed for ultra-fine grinding.

Daily Tank Storage

In general, the feed production line will utilize 12 raw material bins.
Every bin will be filled with around 5-6 batches of material.

Dosing and Weighing

The material will be dosed based on the formula.
In the feed production line, usually material will be processed by batch.

Post-grinding

Post-grinding is the final size reduction in the system.
It is common to use a pulverizer for producing ultra-fine powder.

Wet mixing

Water, oil, and other liquid material will be added.
This will help to hydrate the material before the cooking process.

Pelleting

Pelleting starts with pre-conditioning, adding steam to further hydrate, and cook the material before entering the pelleting chamber to be formed into pellets.

Post-conditioning

Post-conditioning utilizes pellet inner heat added with the heat (by steam or electrical) to prolong cooking and avoid condensation inside the chamber.

Drying

In "High Moisture Pelleting", this is a very crucial step to lower the moisture on the pellets.

Cooling

Cooling utilizes ambient air to cool down the hot pellet from the post-conditioner (or dryer).
Thorough cooling is needed to prevent condensation inside the packaging.

Pelleted Feed

Crumbling

Crumbling is needed to reduce pellets' size into smaller particles. This crumbled feed is needed for the shrimp post-larvae period

Packing

Packing gives protection to the pellets and also give easiness to handle and transport to customer's hand


Frog Feed

Frog feeds are made on extruders and processes are shown below

Feed pellets in test tubes

Raw Material

The raw material consists of coarse and powdery material

15 Dec(你看不見,這個理論上可以不要加)

Pre-grinding

Optional step for coarse material.
Pre-grinding will lower the energy needed for ultra-fine grinding.

Daily Tank Storage

In general, the fish feed line will utilize 12 raw material bins.
Every bin will be filled with around 5-6 batches of material.

Dosing and Weighing

The material will be dosed based on the formula.
In fish feed line, usually, the material will be processed by batch.

Post-grinding

Post-grinding is the final size reduction in the system.
It is common to use a pulverizer for producing ultra-fine powder.

Dry mixing

In this step, trace ingredients such as vitamins and minerals will be added and mixed.

Extrusion

Extrusion starts with pre-conditioning and hydrating by adding steam and water or other liquid.
The material will undergo high pressure, high temperature, and shearing in the barrel, and then be formed by mold at the outlet.

Drying

Drying in extrusion is a must, wet pellets will enter the dryer and come out as dry pellets.
No matter horizontal or vertical dryer, good moisture control is the most important feature that a dryer needs.

Coating (optional)

It is common to coat the pellets with oil or enzymes to increase the nutrient value of the pellets.
Depending on the liquid coating level, drum coater or vacuum coater can be used.

Cooling

Cooling utilizes ambient air to cool down the hot pellet from the dryer.
Thorough cooling is needed to prevent condensation inside the packaging.

Packing

Packing gives protection to the pellets and also give easiness to handle and transport to customer's hand

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