Auxiliary Equipment for Pellet Production Lines
Don’t let the auxiliary equipment become a weakness in your pellet production line.
RICHI offers complete feed production line equipment from crushing to packaging, as well as integrated engineering support. Our custom solutions work seamlessly with your existing production line to help you minimize downtime losses.
Auxiliary Equipment Overview
Auxiliary equipment supports your main pellet mill. It handles material processing, product flow, and environmental control.
Proper layout does more than just prepare feedstock better. It also smoothens production steps, improves final pellet quality, and makes your operation safer and more eco-friendly.
Raw Material Pre-Processing System
The raw materials are pre-treated by cleaning machine, crusher, mixer and batching machine to optimize the physical properties of the materials.This brings your material to its best condition for pelleting.
This protects main machine efficiency from the very start. It also extends die life and lowers your equipment wear costs.
Post-Pelleting Processing System
With coolers, crumbler, graders, vacuum coater, and packing scales, we help you improve pellet hardness and abrasion resistance significantly.
These steps preserve nutrition while boosting palatability and nutritional value. Every batch meets high standards, helping you win market recognition.
Auxiliary Control System
This system covers automated line control, enclosed material handling, and dust control. It includes the PLC central control panel, various conveyors, pulse dust collectors, and rotary distributors.
It balances material supply across stages and provides safety interlocking. We aim to improve your plant’s environmental compliance and intelligence, making daily management easier.
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Crushing Auxiliary Equipment
Drum Wood Chipper
Main motor power: 75–200 kW
Processes logs, branches, and strips into 20–40 mm wood chips. Screen size is customizable.
Wood Hammer Mill
Capacity: 0.5–50 t/h
Further reduces small-diameter material to 0.5–20 mm. Advanced grinding chamber and secondary grinding structure increase output by 25% over other models.
Formwork Crusher
Main motor power: 75–200 kW
For primary crushing of wood waste like pallets with nails, boards, and scrap furniture. Uses high-strength alloy steel hammers for wear resistance.
Bale Breaker
Main motor power: 55–90 kW
For breaking and crushing large baled straw, alfalfa, and other agricultural waste into 20–30 mm pieces. Optional infeed chain conveyor, outfeed belt conveyor, and dust control system available.
Wood Crusher Machine
Main motor power: 30–90 kW
Reduces wood material to 0.5–30 mm fine sawdust. Rotor is dynamically balanced to keep deviation under 5 g at 2,900 rpm.
Grass Crusher
Capacity: 0.5–6 t/h
Specifically for grass, straw, husks, and other light materials. Features forced feeding and a Siemens variable-frequency motor. Screen size customizable from 0.5–20 mm.
Ultra-fine Grinder
Main motor power: 90–220 kW
Mainly for aquafeed and pet food production. It grinds materials to 60–300 mesh.
Feed Pellet Crumbler
Capacity: 3–20 t/h
Reduces large finished pellets into small granules for chick, duckling, and juvenile fish/shrimp feed.
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Mixing Auxiliary Equipment
Animal Feed Mixer
Capacity: 250–3,000 kg/batch
Mainly for feed mills. Supports high-accuracy mixing of multiple components. Its sealed dust-proof design prevents cross-contamination.
Horizontal Feed Mixer
Capacity: 1–42 kg/batch
Horizontal structure makes loading and unloading easier. Ensures fast, uniform mixing for very small batches.
Paddle Mixer
Capacity: 250–2,000 kg/batch
Special paddle design gives fast mixing with gentle shearing and kneading action.
Ribbon Mixer
Capacity: 125–2,000 kg/batch
High fill rate and stable transmission. Cost-effective for powder-powder and medium-low viscosity materials in large volumes.
Premix Mixer
Capacity: 250–3,000 kg/batch
Designed for high-value trace elements and vitamin premixes. Focuses on ultra-high uniformity and very low material residue.
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Batching Auxiliary Equipment
Automatic Dosage Scale
Weighing range: 500–2,000 kg
High-precision load cells ensure accurate static and dynamic weighing. Sturdy and responsive design.
PLC Weighing and Dosage System
Volume: 0.25–3 t
Integrates PLC automation technology. Features intelligent recipe management for unattended precision batching.
Organic Fertilizer Dosing System
Volume: 1–8 m³
For organic fertilizer lines. Upgraded heavy-duty and anti-corrosion design for high-moisture, abrasive, and corrosive materials.
Trace Element Dosing System
Volume: 0.2–10 m³
Accurately meters additives, vitamins, and key minerals. Anti-bridging and sealed design for materials that cake or flow poorly.
Drying and Cooling Equipment
Mesh Belt Dryer
Drying area: 13–58 m²
Hot air recirculation design. Controls pellet moisture to 2–10% (adjustable). Multi-layer belt increases drying area.
Drum Dryer
Diameter: 0.6–1.8 m
Reduces moisture in high-moisture materials to the right range. Suitable for blocky and fibrous biomass.
Hot Air Furnace
Heat supply: 300,000–3,600,000 kcal
Inner combustion chamber and outer heating chamber. Uses flame arrestor and heat exchange technology.
Biomass Burner
Heat supply: 300,000–3,600,000 kcal
Uses wood pellets, sawdust, and other biomass as fuel. Provides low-cost, high-calorie green heat for dryer system.
Counterflow Pellet Cooler
Capacity: 1.5–18 t/h
Cools and hardens hot, moist pellets evenly. Uses counterflow exchange. This is a key piece for improving pellet durability.
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Cleaning and Screening Equipment
Permanent Magnet Drum
Capacity: 25–70 t/h
Removes nails and iron contaminants to protect downstream equipment.
Hanging Iron Remover
Power: 1.5 kW
Removes iron fines. Magnetic surface strength >3,000 gauss with >99% removal rate.
Cylinder Primary Screen
Capacity: 15–50 t/h
Removes stones, sand, and other coarse impurities. Cleaning efficiency reaches 98%.
Drum Cleaning Sieve
Capacity: 3–20 t/h
Separates materials by fineness. Usually used at the front end to remove large and small impurities.
Powder Cleaning Sieve
Capacity: 10–50 t/h
Efficiently removes impurities from powdered materials. Also breaks up small clumps after mixing.
High Plansifter
Capacity: 1–12 t/h
For screening ultra-fine powder from the ultra-fine grinder. Strong screening capacity.
Vibrating Sieve
Capacity: 2–50 t/h
Self-balancing vibration. Screens finished pellets. Streamlined outlet prevents material buildup.
Rotary Grading Screen
Capacity: 3–40 t/h
Customizable screen layers. Separates pellets into three grades.
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Conveying Auxiliary Equipment
Bucket Elevator Conveyor
Output: 6–100 t/h
Vertical lifting up to 70 m. Known for low failure rates and long service life.
Screw Conveyor
Output: 8–80 m³/h
Adjustable incline from 0 to 90 degrees. Adapts to various plant layouts. High capacity and stable.
Scraper Conveyor
Output: 20–210 m³/h
For long-distance horizontal conveying. Equipped with anti-blocking and chain-break alarms.
Belt Conveyor
Speed: 0.5 m/s (adjustable)
For small-angle conveying under 20°. Simple structure and high capacity.
Coating and Liquid Addition Auxiliary Equipment
Vacuum Spraying System
Capacity match: 1–15 t/h
Under vacuum, it changes internal pore pressure. Oil (up to 36%) or flavorings penetrate and lock inside pellets evenly.
Roller Spraying System
Capacity match: 1–15 t/h
For powders, pellets, crumbles, and extruded feed. Evenly coats oil or heat-sensitive materials on finished products.
Simple Spraying System
Capacity match: ≤500–1,000
Designed for small or intermittent lines. Uses an atmospheric nozzle to spray oil or liquid flavor onto pellet surfaces.
Liquid Weighing System
Flow rate: 100–200 L/min
Weighs, stores, and heats oil, molasses, and lecithin. Gear pump structure controls addition accuracy within 0.5%.
Packing and Storage Auxiliary Equipment
Feed Packing Machine
Speed: 6–12 bags/min
Automatic weighing and sealing. Enables dust-free, high-speed bagging for powders and pellets. Reduces labor costs significantly.
Wood Pellet Bagging Machine
Speed: 6–12 bags/min
Heavy-duty structure for abrasive biomass pellets. Wear-resistant feeding and strong sealing keep bags moisture-proof.
Jumbo Bag Packing Machine
Speed: 30–50 bags/hour
For ton-bag bulk packing. Hydraulic lifting and precision weighing work together to improve storage and transfer efficiency.
Storage Silos
Volume: 222–13,382 m³
Diameter range: 1.12–32 m. Optimized cone angle ensures smooth, residue-free discharge. Helps manage inventory and prevent mold.
Unloading System
Speed: 20–40 bags/hour
This automated station handles paper and woven bags. Integrates foreign material detection and waste bag compressing. Prevents dust leakage.
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Other Auxiliary Equipment
Pulse Dust Collector
Filter area: 2–36 m²
Flexible layout. One solenoid valve controls multiple bags. Collects dust effectively.
Rotary Distributor
Distribution ports: 4–12
Multi-way valves. Automatically routes material from a single pipe to different silos or lines.
Control Cabinet
Line capacity match: 1–100 t/h
Provides interlocking control, dynamic monitoring, and fault alarms for the whole line.
Pneumatic Three-way Valve
Valve diameter: 22–27 cm
Switches and diverts material between pipes. Prevents clogging and leakage.
Air Lock
Capacity: 5–50 L
High-sealing rotary valve. Feeds material while blocking air flow. Prevents dust from escaping.
Raw Grain Extruder
Main motor power: 55–160 kW
For soybeans, corn, and other grains. Mechanical extrusion destroys anti-nutritional factors.
Boiler
Evaporation capacity: 0.5–4 t/h
Supplies quality steam to the pellet mill or extruder. Supports custom layouts for tight spaces.
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Pellet Production Process Flow
After understanding each auxiliary equipment, let’s look at the whole plant. Here is how material moves between stages.
Raw Material Cleaning
Material enters the line and first passes through screens and magnets.
Depending on your raw material profile—whether fluid feed grains, high-fiber straw, or sticky fermented organic fertilizer—RICHI deploys specialized pre-cleaning systems. This removes nails, stones, and rope. It keeps material clean and prevents wear on crushers and dies.
Material Grinding
Cleaned material moves to grinding. The method depends on the raw material.
For feed or biomass, high-speed hammer mills reduce it to millimeter size for pressing.
For high-moisture organic fertilizer, we break up clumps and fibers. Dryers and turners adjust moisture to the right level.This step optimizes particle size and shape for even mixing later.
Batching and Mixing
Ground materials are blended according to the recipe.
The PLC weighing system and trace element doser work together. They weigh major ingredients and additives accurately. Then the mixer blends everything thoroughly. Good convection and uniformity ensure every pellet has consistent nutrition, fertilizer effect, or calorific value.
Pelleting
Loose material becomes dense pellets.
Material enters the pellet mill or extruder. Through conditioning with heat or high-pressure extrusion, it binds and is forced through die holes. Blades on both sides cut it into uniform-length pellets. You control pellet size and hardness by choosing die hole diameter and compression ratio.
Cooling and Post-processing
Fresh pellets are hot and moist. They must go through a counterflow cooler to cool and harden. Then processing varies by product:
Chick feed goes through a crumbler for smaller particles. Pet food and aquafeed enter a vacuum coater to lock oil and flavor inside.
This step controls final moisture, prevents cracking, and improves durability and appearance.
Screening and Packing
The final step is quality control and bagging. Pellets pass through a grading screen. Fines are automatically returned for re-processing. Clean pellets go to storage silos. Then the dedicated bagging machines weigh and seal them.
This highly automated packing line helps you count and dispatch finished pellets efficiently and dust-free.
Auxiliary Equipment for Various Production Lines
Different raw material characteristics and finished product requirements determine that the production line requires completely different auxiliary systems. RICHI provides highly customized auxiliary equipment combinations for various pellet production lines to help you maximize the benefits of the entire line.
Animal Feed Production Line
Poultry and livestock lines center on ring-die pellet mills. They include grinding, mixing, cooling, and screening stages. Grinder capacity should slightly exceed the pellet mill’s. This prevents waiting and lost efficiency. For mixing, the twin-shaft paddle type is preferred. The conditioner determines pellet durability and needs precise temperature and pressure control.
Also, ring-die hole size and compression ratio must match the recipe. Pig feed requires finer grinding; poultry is more forgiving. Ruminant pellets can be up to 10 mm in diameter.
Aqua feed Production Line
Aqua feed lines use extruder instead of ring-die pellet mill. They add ultra-fine grinding, drying, and dedicated coating stages. Twin-screw extruders offer better adaptability and more precise expansion control. High-moisture extruded products need multi-layer dryers. Oil and flavors are locked inside via vacuum coaters.
Shrimp feed needs special attention to binders and post-conditioning for water stability. Floating and sinking fish feeds require different screw configurations and operating parameters.
Biomass Pellet Production Line
Biomass has high fiber, high moisture, and low density. Pre-processing is critical. We supply debarkers, chippers, log splitters, pallet crushers, and grass crushers. These auxiliary equipments handle various complex materials. Dryers then reduce moisture to the optimal 10–18% range for pelleting.
Wear and feeding issues are also addressed. High-wear alloy ring dies are supplied to withstand the heavy wear caused by wood pellets, while forced feeders are fitted as standard to handle the long fibers and poor flowability of straw.
Organic Fertilizer Production Line
High moisture and stickiness mean two stages: fermentation pre-treatment and deep processing. The key fermentation tool is the turner. Granulation uses crushers and ring-die granulators. Since discharged pellets have high moisture, a rotary dryer and cooler are essential.
Configuration depends on the product. Pure organic fertilizer differs greatly from compound blends. The latter need inorganic batching and coating equipment. For powder organic fertilizer only, the process is simpler: fermentation, crushing, screening, and packing.
Special Pellets Production Lines
For high-wear materials like minerals and cat litter, we supply wear-resistant alloy hammers, ring dies, and scraper conveyors. This lowers your maintenance costs.
For heat-sensitive materials like chemicals and pharmaceuticals, we fit enhanced coolers to prevent degradation from temperature rise.
If conditioning is needed, our fifth-generation intelligent temperature control technology holds 75–95°C precisely for 3–10 minutes. This meets cooking needs without overheating, protecting your material activity.
Capacity-Based Production Lines
1–3 t/h small lines are simpler. Auxiliary equipment: grinding, mixing, pelleting, cooling, and semi-automatic packing. Suitable for start-ups or farm use. Investment is manageable and operation straightforward.
10 t/h+ large lines are significantly upgraded. Raw material intake uses vertical silos. Batching bins number 12–20. Multiple pellet mills run in parallel. Packing uses fully automatic lines with palletizing robots.
Large lines are coordinated by a PLC central control system. The main benefit is significant labor savings and consistent quality.
See It Work: Auxiliary Equipment at Client Sites
Here are videos of assistive devices we have configured for clients on past projects. These real customer case videos can help you quickly evaluate the performance of RICHI auxiliary equipment, giving you confidence in improving your production line.
Drum Wood Chipper Project in Malaysia
The video shows the test process of the drum wood chipper. Two workers work together to lift a log and feed it into the chipper feed port. The logs are quickly cut and broken, and 3-5 cm wood chips come out. They will enter the next step of crushing process and finally become wood pellets.
RICHI configured this set of pre-treatment equipment for a biomass fuel processing company in Malaysia to help it convert abundant local wood processing residues into clean energy raw materials.
Vibrating Screen Classifier in Uzbekistan
The video shows the vibrating grading screen equipment we produce. This machine is installed in a customer’s cattle feed pellet processing plant in Uzbekistan and is driven by a Siemens motor. Through the design of the multi-layer screen, it can effectively extract qualified particles while screening out dust and agglomerations to ensure the uniformity and cleanliness of the final product.
Packaging Equipment Project in Ecuador
This project is located near Santo Domingo, Ecuador. It is a family-run feed processing plant that mainly supplies high-quality feed to local laying hen farms.
The video shows the packaging equipment at the end of the granule production line, which consists of a packaging scale and a thermoplastic sealing machine. It only requires 1-2 people to complete the packaging and stacking, significantly improving the production efficiency.
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Listen to Real Voices
Around the world, RICHI auxiliary equipment supports efficient production. Hear what plant managers say.
We were expanding our biomass line in Oregon. But the local fibrous hardwood kept jamming our old crusher. Output was always below target. RICHI re-configured the hammers for our wood type. This hammer mill has run continuously for 14 months now. The high-speed bearings and wear-resistant hammers are truly impressive.
Noah Miller
Owner of EcoFlame Biomass Pellets, USA
After installing the RICHI XYPLC2400 vacuum coater, we achieved deep oil and flavor infusion with its high negative pressure technology. Finished pellets are glossy and juicy with no oil loss. They passed strict European quality tests, and our brand entered the premium retail market.
Dr. Axel Fischer
Production Director at AlpenPet GmbH, Germany
In Brazil, controlling moisture in fermented organic fertilizer is a big challenge. Too much heat destroys organic matter. We chose the RICHI DHG-1000 mesh belt dryer. The multi-layer belt gives extremely even heating.
Mateo Silva
Plant Manager at BioAgro Co., Brazil
Our biggest fear was no after-sales support. We chose RICHI because of their good reputation. This SLHJ1A mixer is tough and reliable. It works hard for 12 hours every day, mixing all kinds of materials uniformly in seconds. We now produce enough poultry feed for our farm and even supply nearby villages.
Kofi Mensah
Founder of Mensah Poultry Farms, Ghana
Buyer’s Guide & Support Center
The smooth operation of the production line often depends on the detailed performance of each auxiliary machine node. We have summarized the core technical and operational questions that buyers are most concerned about to help you avoid potential risks in the early stages of the project.
Is low line output always the pellet mill’s fault?
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Not necessarily. Low output often comes from mismatched auxiliary equipment. For example, insufficient grinder capacity starves the mill. Unstable dryer control makes material too wet or too dry, which also hurts pelleting.
Check the whole line’s coordination. Don’t focus only on the pellet mill.
How do I choose between bucket elevators, screw conveyors, and belt conveyors?
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There’s no absolute best. The choice depends on your plant layout and material properties.
For vertical lift with limited space, bucket elevators save floor area. For short distances with dust-proof, metered feeding, screw conveyors work well. For long-distance conveying of finished pellets where breakage is a concern, belt conveyors are the best option.
Why is dust collection essential for a pellet line?
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Dust collection serves environmental, safety, and economic purposes.
First, it lowers dust concentration to protect worker health and meet regulations. Second, high dust levels pose an explosion hazard—collection is a key safety measure. Third, collected dust can be returned to the process, so you waste no material.
What is the service life of high-wear parts like hammer mill hammers and grader screens? Are changes frequent?
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Frequent replacement raises operating costs. So RICHI uses high-grade wear materials for all core auxiliaries. For example, our hammers have tungsten carbide hardfacing. They last longer than standard carbon steel hammers. Dryer belts use corrosion-resistant stainless steel that resists deformation. These designs reduce downtime and keep your plant running continuously.
How do all the auxiliary units interface with the central PLC control system?
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RICHI supplies integrated plant solutions. From three-way valves and air locks to large dryers, all auxiliaries have standard sensors and smart interfaces. They connect fully to the main control cabinet via PLC. This enables dynamic interlocking. If a feeder jams or overloads, the system alerts and slows or stops upstream equipment. This prevents damage and material pile-ups.
What if I need spare auxiliary parts urgently overseas? Can RICHI logistics and technical support keep up?
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This is a core strength of our service. In designing auxiliaries, we use globally standard components (SKF bearings, Siemens motors, and imported seals). You can source these locally. For our proprietary parts (dies, alloy hammers), RICHI has a global spare parts warehouse. We deliver to your factory as fast as possible. Our engineers also support online diagnosis and on-site service, minimizing unexpected downtime.
