Floating Fish Feed Extruder
A floating fish feed extruder is a specialized piece of equipment designed for the production of floating fish feed pellets. It utilizes high temperature and high pressure to gelatinize and expand raw materials, which are then extruded through a die to form pellets that are capable of floating on the water’s surface for an extended period.
Production capacity : 0.2-12t/h
RICHI Floating
Fish Feed Extruder
Since its establishment in 1995, RICHI has focused on feed machinery for 31 years, committed to achieving maximum long-term value with the lowest operating costs.
Product Introduction
RICHI floating fish feed extruders fall into two main categories: single-screw and twin-screw models. The single-screw models require lower investment and offer simple operation, making them suitable for small-to-medium-scale production; the twin-screw models feature high processing capacity and superior stability, making them ideal for large-scale, high-value-added feed production lines.
Regardless of the type, it enables precise control over particle size, texture, and density, while offering the flexibility to produce floating, slow-sinking, and sinking feeds.
Exceptional Buoyancy Performance
Under standard processing conditions, the produced floating feed pellets can remain stably afloat on the water surface for 12 to 24 hours without sinking or disintegrating.
This gives surface-dwelling fish ample time to feed, prevents feed from sinking to the bottom and going to waste, and simultaneously reduces nitrogen and phosphorus pollution in the water body caused by uneaten feed, thereby improving water quality in the aquaculture environment.
Multi-Purpose Machine
By adjusting raw material moisture, extrusion temperature, screw speed, and die aperture, a single piece of equipment can rapidly switch between producing floating, slow-sinking, and sinking feeds.
Whether handling tilapia, catfish, shrimp, or crabs, the system responds with agility, resulting in a significant enhancement of equipment utilization and product diversity across the production line.
High Degree of Maturation
The high temperatures and pressures during the extrusion process induce complete starch gelatinization and protein denaturation, thereby effectively eliminating anti-nutritional factors present in raw materials such as soybeans.
Compared to ordinary pelleted feed, extruded feed is more easily digested and absorbed by fish, effectively improving the feed conversion rate and promoting healthy, rapid growth.
Energy-efficient and Durable
By utilizing steam heating to offset a portion of mechanical energy consumption, the electricity consumption per ton of material is reduced compared to traditional equipment. Furthermore, variable frequency technology enables the motor to automatically adjust its power usage in response to the load, thereby effectively minimizing idle power consumption.
Single-screw models feature simple maintenance, while twin-screw models are equipped with high-end bearings and motors, effectively reducing operating costs.
Various Capacities
Many customers face challenges in terms of production capacity when choosing a floating fish feed extruder. RICHI offers a variety of floating fish feed extruder models for your selection; the specific parameters for each model are listed below.
Floating fish feed production
| Model | SPHS75x2 | SPHS120*2 | SPHS150*2 | SPHS185*2 | |
| Main Motor Power (kW) | 55 | 90 | 110 | 200 | 355 |
| Screw Diameter (mm) | 75 | 120 | 120 | 150 | 185 |
| Feeder Power (kW) | 1.5 | 1.5 | 1.5 | 1.5 | 2.2 |
| Modulator Power (kW) | 7.5 | 11 | 11 | 11 | 11 |
| Modulator Specifications | DC400-244 | DC500-244 | DC500-244 | DC600-300 | DC600-300 |
| Differential Modulator Power (kW) | 11 | 11 | 11 | 15 | 15 |
| Differential Modulator Specifications | DC400*300-244 | DC500*400-300 | DC500*400-300 | DC600*500-300 | DC600*500-300 |
| Output (T/H) | 0.5-1.0 | 1.5-2.0 | 3.0-4.0 | 5.0-6.0 | 10-12 |
Main Components
of Feed Extruder
Floating fish feed extruder is mainly composed of three main parts: feeder, main extruder unit and control system. The following is a brief introduction to the main components of this extruder.
Feeder
Intelligent Variable Frequency
The feed inlet features a wide-mouth design and is equipped with a variable-frequency motor; this enables the machine to automatically adjust to the optimal feeding speed for various raw materials—such as those with high moisture or high fiber content—thereby effectively preventing blockages while ensuring the continuous and stable operation of the subsequent extrusion process, ultimately guaranteeing the production of pellets with uniform size.
Extrusion Chamber
High-Efficiency Molding
The extrusion chamber comes standard with a wear-resistant alloy screw and a bimetallic expansion sleeve, effectively minimizing wear and ensuring that materials undergo thorough gelatinization and expansion within a high-temperature, high-pressure environment. The equipment features a fixed soft-knife assembly that enables stepless speed cutting, resulting in finished products with clean, burr-free cuts.
Control System
Safe and Reliable
The main motor utilizes top-tier international brands—such as Siemens—delivering powerful performance with low energy consumption. The gearbox uses SKF bearings to ensure the machine’s long-term, stable operation. Furthermore, the independent electrical control cabinet features a safety shutdown function and supports one-touch start-stop operations and parameter monitoring, thereby effectively minimizing the risk of human error.
Fish Feed Extruder for Sale
You are free to select a fish feed extruder production line with the specific capacity that best suits your personal budget and desired production output.
Small-scale Production Line (0.5-2 tons/hour)
Specifically designed for small-scale fish farms, local feed mills, and entrepreneurs entering the aquaculture feed industry for the first time. Ideal for self-use or small-batch multi-species production.
Main Equipment: Hammer mill, mixer, single/double-screw extruder (or pellet mill), dryer, counterflow cooler, vibrating screen, packaging machine.
Particle Size: 0.5-12 mm (Fully adjustable)
Ideal for: Startups, self-feed farms, and users needing multiple small-batch recipes.
Medium-scale Production Line (2-3 tons/hour)
Specifically designed for commercial fish farms, feed processing plants with stable market demand, and distributors transitioning to own-brand production. Supports floating, sinking, and slow-sinking feeds.
Main Equipment: Ultra-fine grinder, automatic batching system, twin-screw extruder, belt dryer, vacuum coater, counterflow cooler, vibrating screen, automatic packer.
Particle Size: 0.5-12 mm
Ideal for: Medium feed mills, farms seeking formula control, and own-brand investors.
Large-scale Production Line (4-5 tons/hour)
Tailored specifically for medium-to-large-scale commercial feed mills and aquaculture enterprises requiring high-volume, continuous production, this system features an advanced level of automation.
Main Equipment: hammer mill, mixer, twin-screw extruder, belt dryer, spray coating system, counterflow cooler, rotary sifter, ect.
Particle Size: 0.5-12 mm
Ideal for: Factories near full capacity, multi-shift operations, and producers needing stable large-scale supply.
Ultra-large-scale Production Line (10-12 tons/hour)
Specifically designed for large-scale chain feed mills, export-oriented manufacturers, and integrated aquaculture corporations. Features fully automated batching and turnkey engineering.
Main Equipment: Large hammer mill + ultra-fine mill, twin-shaft paddle mixer, twin-screw extruder, vacuum coater, fully automatic packer, wastewater treatment, ect.
Particle Size: 0.5-12 mm
Ideal for: Large feed mills, export/chain producers, and enterprises targeting multi-species feed.
Fish Feed Extruder Process Flow
RICHI floating fish feed extruders offer modular solutions from raw material receiving to finished product packaging. Below is the processing flow of their production line.
Raw Material Cleaning
Impurities and moldy particles are removed through screening and magnetic separation, and the materials are stored in groups based on hardness and density to prevent uneven mixing.
Crushing and Mixing
Raw materials are fed in batches into the ultrafine grinder for independent grinding, thereby preventing cross-contamination.
Conditioning and Extrusion
The degree of pellet maturation is enhanced through steam conditioning, followed by high-temperature and high-pressure expansion using a floating extruder.
Drying
The granules are dried to an appropriate moisture level using a drying system, thereby preserving their porous structure and ensuring that they remain buoyant and do not sink over the long term.
Spray Coating
Evenly spray oil or functional liquid additives onto the surface of pellet feed to enhance its palatability.
Cooling and Packaging
Circulating cold air rapidly reduces the temperature of the granules to room temperature, after which a fully automatic packaging machine performs the weighing, filling, sealing, and labeling.
Precisely
Tailored Solutions
Based on the specific characteristics of the raw materials or site constraints, RICHI’s engineers will redesign the process workflow and adjust the quantity of required equipment.
Fish Feed Extruder case studies
●Russia
5T/H Floating Fish Feed Pellet Production Line
Centered on a wet twin-screw extruder, and equipped with ultrafine grinding, conveyor belt drying, and post-coating equipment, this system is suitable for producing high-value-added floating aquatic feed.
- Ingredients : Soybean meal, wheat, fish meal,black meal,maize.
- Product dimensions : 0.5-8mm
●Indonesia
2T/H Shrimp Feed Pellet Production Line
Main equipment: Crushers, twin-shaft paddle mixers, shrimp feed pellet mills, counter-flow coolers, ton-bag scales, etc.
- Ingredients : Fish meal, yeast powder, soy lecithin, wheat bran, soybean meal, etc.
- Product dimensions : 0.6-8mm
●Philippines
5T/H Floating Fish Feed Pellet Production Line
Main equipment: Cylindrical Primary Cleaner, Hammer Mill, Twin-Shaft Paddle Mixer, Floating Fish Feed Extruder, Vacuum Coater, etc.
- Ingredients : Cassava, fish meal, rice bran, soybean meal, etc.
- Product dimensions : 1.5-5mm
●Brazil
10T/H Fish & Shrimp Feed Pellet Production Line
A composite production line combining pelleting and extrusion is used, featuring a 6-8 grade motor, a three-layer conditioner, a high-compression-ratio ring die, an ultrafine grinding system, and a post-maturation unit.
- Ingredients : Soybean meal, fish meal, rice bran, vegetable oil, etc.
- Product dimensions :1-4mm
Our
Core Strengths
RICHI Machinery remains steadfastly focused on innovative R&D and precision manufacturing. Through our scientifically tailored services, comprehensive after-sales support, and advanced, reliable equipment, we empower you to maximize your profits.
Scientific Customization Services
Our company has a dedicated R&D and design team to provide customized services. Whether for household or commercial use, we will develop a tailored floating fish feed production line that is efficient and stable for your needs.
Comprehensive After-Sales Support
RICHI provides comprehensive after-sales support and have a global network of maintenance personnel. If any issues arise with the equipment, our after-sales team will immediately provide solutions, and dedicated technicians will offer on-site repairs within 48 hours to minimize your downtime.
Advanced Reliable Technology
RICHI Manufacturing is backed by an advanced technology system. We have obtained certifications including European CE and Swiss SGS. Our strong technical capabilities ensure reliable production for your operations.
Global Service Experience
RICHI floating fish feed extruders cover more than 120 countries and regions worldwide, adapting to different climates and farming models. With thousands of successful customer cases, their quality has stood the test of time.
About RICHI Machinery
Based in China and serving global markets, RICHI Machinery is a global manufacturer and engineering service provider specializing in pellet production equipment and complete processing systems. From feed, biomass, and organic fertilizer to cat litter and agricultural waste recycling, we help customers build efficient, reliable, and scalable production solutions tailored to their raw materials, capacity requirements, and market goals. With projects delivered across multiple industries and countries, our focus is always on practical performance, long-term operation, and customer success.
Advanced Engineering & Intelligent Manufacturing
Driven by technology and manufacturing expertise, RICHI integrates process engineering, equipment R&D, intelligent manufacturing, and project delivery into one complete service system. Our modern production facilities, precision machining capabilities, and experienced technical team allow us to provide customized equipment, complete plant design, automation integration, installation guidance, and ongoing technical support. From single machines to fully integrated production lines, we deliver solutions designed for stability, efficiency, and sustainable production growth.
Frequently Asked Questions
The following is a summary of frequently asked questions regarding configuration, installation, after-sales service, pricing, and complete plant setup, to help you quickly understand RICHI products.
How do you determine whether the feed is floating properly?
Place a few pellets into clear water; high-quality floating feed should remain afloat for at least 12 hours. If the pellets sink rapidly, the raw material moisture content, temperature, or screw configuration should be checked.
Can you produce sinking feed?
Yes. By reducing moisture and temperature levels, and appropriately adjusting the screw speed, it is possible to produce semi-floating or sinking feed, suitable for fish that prefer to forage in the middle or bottom layers of the water.
How should heat-sensitive raw materials be handled?
Heat-sensitive ingredients are added directly to the oil intended for spraying, which is then applied—via a spraying machine—to both the surface and the interior of the feed. This process bypasses the fish feed extruder, thereby preventing high temperatures from damaging the heat-sensitive ingredients.
Is a boiler required?
Dry-type models do not require a boiler, whereas wet-type models (equipped with a conditioner) require a steam boiler to enhance the degree of cooking; the choice between the two can be made based on budget and processing requirements.
Core Equipment Configuration?
All equipment uses Siemens motors and SKF bearings; all parts in contact with materials are made of stainless steel.
Not satisfied with the price?
We recommend suitable models and processes based on customer needs, patiently answer questions, and provide multiple solutions for users to choose from.
