| Production Output | Range from 150kg/h to 5 t/h |
| Power Type | Electric motor |
| Raw Materials | Corn, wheat, soybean meal, fish meal, rice bran, meat meal and other aquatic feed ingredients |
| Type | wet type fish feed extruder |
| Final pellet size | 0.9mm, 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, 8mm, etc. |
| Used For | Floating pellets for catfish, tilapia, carp, trout, and pets |
Aquafeed Solutions with Wet Type Fish Feed Extruder Machine
The wet type floating fish feed extruder machine is a professional aquafeed processing system designed to produce high-quality floating pellets for commercial fish farms and feed manufacturers.
Unlike dry type fish feed machines, the wet extrusion system uses steam conditioning before extrusion. The added moisture and heat provide better control of cooking conditions, improve starch gelatinization and pellet expansion, and help achieve stable pellet quality and water stability during continuous production.
The VTSP series wet type fish feed extruder can process various raw materials including corn, wheat, soybean meal, fish meal, rice bran, meat meal and other aquatic feed ingredients into floating pellets for tilapia, catfish, carp, trout, shrimp and ornamental fish.
With production capacity ranging from 150 kg/h to 5 t/h, this machine is mainly used in medium and large aquafeed factories, commercial aquaculture farms and professional feed production facilities that require stable output, high pellet quality and continuous operation.
During operation, raw materials are first conditioned by steam and moisture, then processed through the extrusion chamber under high pressure and shear force to achieve proper expansion and starch gelatinization. By changing die molds and adjusting extrusion parameters, the machine can produce floating pellets from 0.9 mm to 15 mm with excellent water stability.
For small farms or businesses that need lower investment and simpler operation, our dry type fish feed machine is also available.
Dry Type vs Wet Type Fish Feed Extruder Machine
For those farmers who want to produce their own fish feed or start a small aquafeed business, dry type extrusion is usually a practical choice because it reduces equipment investment and simplifies operation. For more details you can check Dry vs Wet Extruder Comparison.
| Feature | Dry Type Fish Feed Machine | Wet Type Fish Feed Extruder |
|---|---|---|
| Steam conditioning system | Not required | Required |
| Initial investment | Lower | Higher |
| Production scale | Small to medium production | Medium to large-scale production |
| Production capacity | Up to about 3 t/h | Up to 5 t/h |
| Pellet quality consistency | Good | More consistent for continuous production |
| Cooking control | Simple and flexible | More precise with steam conditioning |
| Processing effect | Suitable for farm feed production | Optimized for large-scale aquafeed production |
| Operation complexity | Simple operation | Requires professional operation |
| Suitable users | Small farms, startups and local feed producers | Commercial feed factories and large aquaculture farms |
When to Use Wet Type Fish Feed Extruder
| Application Scenario | Recommended Type | Reason |
|---|---|---|
| Large feed factory (>3 t/h) | Wet type | high output efficiency |
| High-quality aquafeed | Wet type | >90% starch gelatinization |
Why Adopt Wet Type Extruder (Advantages)
Advanced Conditioning Technology:
- The steam conditioning system is one of the key differences between wet and dry extrusion. It improves moisture distribution and allows better control of cooking conditions before extrusion. The raw materials are conditioned by the high temperature (130-150℃) boiler steam. Steam conditioning generally improves starch gelatinization compared with dry extrusion under suitable processing conditions.
- The high temperature boiler steam device of the aquafeed equipment improve the feed expansion rate.
Premium Pellet Quality:
- The final pellets by the wet extrusion are high gloss, smooth surface and high structural integrity. The high temperature ensures the pellets are puffed and cooked deeply. This can improve water stability more than 24 hours.
- High temperature and high pressure can help reduce microbial contamination risks during feed processing.
- This puffing feed extrusion machine can make various grain waste into aquatic feed pellets with rich nutrition and easy digestion.
- This aquafeed equipment can produce submerged aquatic feed through changing different mold. It can eliminate the material containing most of the toxins and anti-nutritional factors of anti-trypsin and urease, Which is conducive to aquatic digestion and absorption, improve the digestion and utilization of nutrients.
High Production Efficiency:
- Although the investment is higher at the beginning, the wet type extruder offers higher production capacity up to 5 tons per hour. The high temperature steam reduces the friction between screw and sleeve, and increase their life by 30-50%. For large production, the lower energy consumption and downtime mean higher and faster return on investment.
- The main motor using high-quality Y series three-phase motor, to ensure strong power.
- The machine is engineered with an advanced pelletizing structure. It has a variable-speed, spring-loaded rotary cutter that can precisely slice pellets to round ball granules, which guarantee clean cuts and smooth edges.
- We can adjust the cutter of floating fish feed extruding machine to get different diameter and length.
structure of Floating Fish feed extruder
1. Feeder:
It is to ensure the uniform and stable feeding, and adjust the feeding quantity according to the rated current value of the extrusion motor. Generally it uses electromagnetic speed motor or frequency converter to control speed and change material feeding quantity. The outlet of the feeding hopper is usually fed by the spiral dragline to the extruded section.
2. Extruding chamber:
It consists of a screw, a barrel, a template, a clamp and so on. The screw, and barrel are piecewise combined, so the degree of compression can be adjusted in accordance with the type and requirements of extruded feed, in order to change the expansion of the extruded feed.
3. The expansion mechanism
It is divided into 3 segments according to its function and position:
♦ Feeding section: in this section the screw pitch is large, so it mainly transports and compresses materials, so that the spiral groove is filled with feed material.
♦ Compression section: the slot of screw shallows along the material pushing direction and compresses the material.
♦ Extrusion section: screw groove is more shallow, pitch gradually turns smaller, and the extrusion pressure reaches up to 2 ～ 6 MPa, the temperature can reach 120-180 degrees.
Raw Materials for fish Feed Extruder machine
The raw material can be different kinds of the grain powder (corn powder , Flour, corn starch, rice bran), meat meal, bone meal, fish meal, soybean meal , before feeding the raw material into the extruder machine , the raw material should be 60-80 meshes with 20-25% through high temperature steam conditioning.
Spare Parts For Floating Fish Feed Extruder Machine
♦ Screw sleeve adopts jacketed construction, which can be injected in with hot steam or cooling water, thus the extruding temperature can be controlled effectively.
♦ Removable cutting mechanism use knives with good elasticity, which attach to the die plate tenderly and can be operated quickly and accurately.
♦ Screw rods and dies are processed through vacuum quench treatment, also be processed with high processing precision and have a long using longevity.
♦ Due to high pressures, shear and abrasion inside the barrel of extruders, the easily-worn parts like barrel, screw periodically should be replaced. Our aqaufeed equipment are of the modular design so worn components can be easily removed and replaced as needed. Moreover, one fish feed pellet machine is equipped with extra easy wear parts for free including two sleeves, one screw, one cutting knife and three die moulds.
specification of fish feed extruding machine
electric floating fish feed extruder
| Model | Capacity(kg) | Main Power(kw) | Feeding Power(kw) | Cutting Power(kw) | Screw Diameter(mm) | Conditioning power(kw) |
| VTSP-60 | 150-200 | 15 | 0.4 | 0.4 | 60 | 0.37 |
| VTSP-70 | 300-400 | 18.5 | 0.75 | 0.4 | 70 | 1.1 |
| VTSP-80 | 400-500 | 22 | 0.75 | 1.5 | 80 | 1.5 |
| VTSP-90 | 500-600 | 37 | 1.1 | 2.2 | 90 | 2.2 |
| VTSP-120 | 700-800 | 55 | 1.1 | 2.2 | 120 | 2.2 |
| VTSP-135 | 1000-1200 | 75 | 1.5 | 3.0 | 135 | 3.0 |
| VTSP-160 | 1500-2000 | 90 | 2.2 | 3.0 | 160 | 4.0 |
| VTSP-200 | 3000-5000 | 132 | 2.2 | 4.0 | 200 | 5.0 |
Floating Feed Extruder Video
