A fish feed extruder isn't just a machine you plug in and hope for the best. Our product list covers everything from simple single-screw units for small farms to twin-screw fish feed extruder machine systems that handle 10+ tons per hour. Over the last fifteen years, one thing we learned early on is that a floating or sinking pellet line only works when the extruder matches your raw materials, local humidity, and target production volume.
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We've done projects in Vietnam where the customer needed high-fat floating feed for pangasius, setups in Norway focused on cold-water salmon diets, and lines in Nigeria producing affordable sinking pellets for tilapia. Each time, the fish feed extruder configuration changed—different screw profiles, barrel lengths, and preconditioning stages. You won't find generic "one-size-fits-all" recommendations here. We actually ask about your fish species, your local starch sources, and your existing drying or coating equipment before we even talk about pricing.
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You can’t just buy any machine and hope for the best. Different fish, different farms, and different budgets all point to a specific type of fish feed extruder. Some guys need a simple dry setup for floating carp pellets. Others need a complex wet system for high-density sinking feed. We supply them all. We group our machines into six real-world categories based on what actually matters: screw configuration, moisture control, and pellet density. Below is the breakdown of the main types we offer, so you can see which one actually fits your production floor.
● SPHS Series
● The Plug-and-Play DGP-Series
● The Precision DSP-Series
● The Ring Die SZLH-Series
● The Floating King Series
● Agricultural Waste Valorization
● Classic DGP/DSP Series
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This is where gelatinization happens. Dual-shaft paddles mix steam evenly into your meal – no cold spots, no raw starch slipping through. Feed quality gets locked in right here.
We don't skimp here. The Siemens motor keeps torque steady even when sticky dough tries to slow things down. Less heat, less noise, and it won't quit mid-shift.
The new fully wear-resistant alloy (38CrMoAi) screw and the inner sleeve of the bimetal expansion cavity can effectively reduce the wear and tear and ensure the long-term stable operation.
Overfeed and you'll choke the barrel. Underfeed and you'll burn the product. This unit talks to the main drive – ingredient flow stays locked to screw rpm hour after hour.
We've been in enough feed mills to know exactly where extruders start showing weakness after six months of hard running. So we overbuilt those spots. Heavier bearing housings. Thicker barrel walls on the high-wear zones. We also designed the barrel sections to be easier to open...That's not marketing. That's just how we protect our reputation. Your extruder should make you look good to your customers. We build it so it does.
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○ RICHI MACHINERY
We're not just a factory that sells drawings. We're a professional extruder and production line manufacturer with over a decade of hands-on project experience. The best way to trust a fish feed extruder is to watch it run in someone else's plant first. Above are six real installations across three continents – from shrimp lines in Indonesia to floating feed plants in Russia. Hit play, see the layout, and notice the little details like how the conditioner sits relative to the operator platform.
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We don't just sell machines. We design and install complete fish feed extruder lines for farms and feed mills across five continents. Below are real projects from the last three years – each with different species, different raw materials, and different capacity needs. Some customers bought a single fish feed extruder machine. Most bought a full extrusion line including dryer, coater, and grinder. Read through these. You'll probably see your own situation somewhere here.
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A fish feed extruder alone won't run your plant. You need the whole line sized correctly for your ingredients, your building, and your budget. We design complete extrusion systems for different raw materials (corn, wheat, tapioca, fishmeal, soybean meal, rice bran, blood meal) and different applications (floating fish feed, sinking shrimp feed, pet food, even grain expansion).
The standard process flow includes raw material receiving, grinding, batching, extrusion, drying, coating, cooling, screening, and bagging. But we constantly add or remove sections depending on the client's situation.
We handle the whole lifecycle – layout design, equipment fabrication, shipping, civil work guidance, installation, commissioning, team training, and wear parts supply for years to come. Every line we build is different, and that's exactly how we approach each project.
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We've lost count of how many species our customers are producing and feeding. The same fish feed extruder machine can produce sinking micro-pellets for abalone larvae one hour and 15mm floating rings for tuna the next. Below are the most common ones we've worked with. Each species has its own pellet size, density requirement, and fat level. Read through – you'll probably find your market here.
Floating 2mm–5mm pellets, 28–32% protein. Starch needs to be well gelatinized or pellets sink.
Floating or slow-sinking 3mm–6mm, high fat (18–22%). Needs good oil absorption after extrusion.
Sinking 0.8mm–2.2mm, 35–38% protein. Requires excellent water stability (90+ minutes).
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A fish feed extruder is only one piece. You need the whole line – grinder, mixer, dryer, coater, screener, bags. Below are complete production solutions we've priced and built for customers worldwide. The investment ranges come from thousands of actual quotes we've delivered, not guesswork. Each line is turnkey: equipment only (no civil works, no shipping). Your actual price depends on automation level, local voltage, material of construction, and add-ons like fat spray systems or extra silos. But these ranges will get you in the right ballpark – probably within 15% of your final number.
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Gets rid of stones, magnetic metals, and dust before they wreck your hammer mill or damage extruder screws. Most common setup: a vibrating screen plus a magnetic separator.
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Reduces grains and meals to the right particle size. Shrimp feed needs powder under 0.5mm. Tilapia feed can handle 1.0mm. We offer coarse grinders and fine-grinding classifiers.
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Weighs and blends your formula – fishmeal, soybean meal, wheat flour, oil, minerals. Manual or automatic batching. Ribbon mixers for general feed, paddle mixers for high-moisture or sticky formulas.
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Fresh pellets right out of the extruder have 22–28% moisture. You need them down to 8–10% for storage. Belt dryers are the standard (gentle, even drying). Plate dryers are cheaper but less uniform.
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Hot pellets straight from the dryer will sweat inside the bag – mold follows. A counterflow cooler pulls room air through the pellets, dropping temperature to near-ambient before bagging.
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Adds fats, oils, or liquid vitamins after drying. Basic systems use a drum sprayer. High-end shrimp and salmon lines use a vacuum coater – pulls oil deep into the pellet instead of just coating the surface.
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Weighs and fills your bags automatically. Manual or fully automatic with a sewing head or heat sealer. Most mid-size plants choose the semi-auto version – fast enough for 6–8 tons per hour without the complexity.
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Moves material between machines. Bucket elevators for vertical lift. Screw conveyors for horizontal or inclined transfer. Belt conveyors for fragile pellets that break easily.
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Stores raw grains or finished pellets. Flat-bottom silos for large volume, hopper-bottom silos for complete discharge. We also supply aeration floors and level sensors.
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Dry-type starter lines run from around $20,000. A fully equipped wet-type twin-screw line with dryer, coater, and controls sits between $80,000 and $1,200,000 — capacity is the biggest driver. Those numbers come from real orders, not catalog pages. Tell us your daily output target and we'll put an actual figure in front of you.
Yes — and we make sure of it before we leave. Our technicians stay on-site until your operators can run the line confidently on their own. We also hand over illustrated manuals and layout drawings in your language. Most teams are fully independent within a week. The machine isn't the hard part; setup and first batches are. That's exactly where we focus.
One line handles both. Screw configuration and die plate selection control pellet density and size — switching between species takes under 30 minutes on most twin-screw models. We've run tilapia, catfish, carp, and pangasius through the same line in the same week. Just tell us your full species list upfront so we configure correctly from the start.
Take your monthly feed consumption, add 20% for herd growth, divide by 300 operating hours. That gives your minimum required output. Then go one size up — we've seen too many farms hit capacity limits within 18 months. Upgrading mid-production is painful and expensive. If budget allows, size up now.
Cassava works well — it's high-starch and great for floating pellets. Corn is straightforward. Rice bran needs attention; too much oil content causes die slipping and inconsistent output. We test your actual ingredients before the machine ships. If a formula won't work as-is, we tell you and suggest blending ratios that will. No surprises after delivery.
We stock wear parts — screws, barrels, dies — for every model we've shipped in the past decade. Parts go out fast. For troubleshooting, 90% of issues get resolved over a WhatsApp video call with one of our engineers. If it needs a site visit, we can have a technician there within two weeks. The warranty is 12 months, but the support doesn't stop there.
Factory. 60000 square meters in China. We manufacture extruders, dryers, coaters, grinders, and pellet mills under one roof — the full line, not assembled from third-party components. You're welcome to visit and watch your machine being built. Customers from over 60 countries have done exactly that.
For saltwater species like shrimp and abalone, yes — but it requires the right setup. Fine particle sizes under 1mm, precise moisture control, and a properly configured binding ratio. We've built shrimp feed lines in Ecuador and abalone lines in South Africa. Water stability above 90 minutes is achievable; it's just not something a basic single-screw machine will deliver.
Small lines under 1 t/h: 25–35 days production, then 5–7 days installation. Medium lines: 40–60 days. Large lines up to 10 t/h: 70–90 days plus 3–4 weeks on-site. Every Friday we send production photos — you always know where things stand. Custom alloy or automation upgrades add 2–3 weeks on top.
Short answer: some of them are fine for low-volume, simple recipes. But if you're running high-fat salmon feed, shrimp pellets, or anything above 1 t/h, the cheaper units tend to cause problems — inconsistent pellet quality, frequent die clogging, short screw lifespan. We've had customers come to us after those experiences. Fixing it mid-production costs more than buying right the first time. We're not the cheapest option. We are the one that keeps running.
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As a global leader in pelletizing solutions, RICHI represents a fully integrated technology partner that masters every dimension of modern production systems. From pioneering research in material science to precision engineering and industrial-scale manufacturing, we build complete production ecosystems that transform raw materials into high-value pellets. Our holistic approach ensures each project is founded on three pillars: engineering precision that guarantees operational efficiency, continuous innovation that adapts to evolving market demands, and uncompromising reliability that sustains production for decades. With vertically controlled manufacturing and end-to-end project management, we deliver not just equipment, but fully optimized production assets that drive profitability across industries worldwide.
Engineering & Manufacturing
Research & Development
Technical Services
Patents & Certifications
Global Partnerships
Global Headquarters
○ RICHI MACHINERY
Founded in 1995, RICHI Machinery has evolved from a specialized manufacturer into a global engineering provider for complete pelletizing systems. With two major manufacturing bases spanning over 60,000 m², we control every step from design to delivery, ensuring unmatched quality and depth of production. Our commitment to excellence is reflected in our global impact, serving clients in over 140 countries with more than 2,000 successful projects and 10,000+ equipment units delivered worldwide.
Production Area
Countries Served
Global Projects
Equipment Delivered
○ RICHI MACHINERY
For nearly three decades, RICHI has mastered the complexities of diverse materials across global industries. We provide end-to-end pelletizing systems, delivering the complete technological and engineering support needed to transform raw materials into high-value products. From initial concept to operational plant, we are your single partner for launching and scaling a successful pellet processing business.
○ RICHI MACHINERY
○ RICHI MACHINERY
As a global leader in pelletizing solutions, RICHI represents a fully integrated technology partner that masters every dimension of modern production systems. From pioneering research in material science to precision engineering and industrial-scale manufacturing, we build complete production ecosystems that transform raw materials into high-value pellets. Our holistic approach ensures each project is founded on three pillars: engineering precision that guarantees operational efficiency, continuous innovation that adapts to evolving market demands, and uncompromising reliability that sustains production for decades. With vertically controlled manufacturing and end-to-end project management, we deliver not just equipment, but fully optimized production assets that drive profitability across industries worldwide.
Engineering & Manufacturing
Research & Development
Technical Services
Patents & Certifications
Global Partnerships

Global Headquarters
○ RICHI MACHINERY
Founded in 1995, RICHI Machinery has evolved from a specialized manufacturer into a global engineering provider for complete pelletizing systems. With two major manufacturing bases spanning over 60,000 m², we control every step from design to delivery, ensuring unmatched quality and depth of production. Our commitment to excellence is reflected in our global impact, serving clients in over 140 countries with more than 2,000 successful projects and 10,000+ equipment units delivered worldwide.
Production Area
Countries Served
Global Projects
Equipment Delivered
○ RICHI MACHINERY
For nearly three decades, RICHI has mastered the complexities of diverse materials across global industries. We provide end-to-end pelletizing systems, delivering the complete technological and engineering support needed to transform raw materials into high-value products. From initial concept to operational plant, we are your single partner for launching and scaling a successful pellet processing business.
○ RICHI MACHINERY
○ RICHI MACHINERY
Keeping in touch with us is an effective way to solve all your problems. If you have any needs or questions, please leave your contact information, then RICHI technical consultants will send design, quotation, videos to your mailbox. You can also contact us directly via WhatsApp: +86 13838389622
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