A counterflow pellet cooler is the final step to stabilize hot pellets before screening, storage, packaging, or transport. Suitable for feed, wood, fertilizer, cat litter, and other pellet products, it delivers uniform cooling, low breakage, and reliable performance across a wide capacity range.
A counterflow pellet cooler protects pellet quality by reducing temperature and moisture immediately after pelleting. Ambient air moves opposite to the flow of hot pellets, creating efficient, uniform cooling while minimizing cracks and fines. We offer two proven solutions—the SKLF flap-type and SKLY rotary-valve (impeller) models—to match different pellet characteristics, capacities, and production lines. Backed by hundreds of global projects across feed, biomass, fertilizer, and cat litter industries, we help customers select the right pellet cooling machine for stable, long-term operation.
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Our counterflow pellet cooler is suitable for cooling almost all hot pelletized materials after pelleting, extrusion, or granulation. Typical applications include livestock and poultry feed, aquafeed, pet food, wood and biomass fuel pellets, biochar, cat litter, RDF/SRF fuel pellets, animal bedding, organic and compound fertilizer granules, plus selected food and feed ingredient pellets.
Animal Feed Pellet
Biomass Wood Pellet
Cat Litter Pellet
Fertilizer Pellet
Solid Waste Pellet
Biochar Pellet
Our counterflow pellet cooler is trusted by feed mills, biomass pellet producers, fertilizer manufacturers, pet product factories, waste-to-energy companies, and food ingredient processors worldwide. Whether you operate a standalone pellet plant or a complete production line, we offer reliable pellet cooling equipment tailored to your material characteristics, production capacity, and automation requirements.
Feed Processing Plants
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Pet Product Companies
Fertilizer Production Enterprises
Waste Energy Recovery Plants
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The counterflow pellet cooler uses a swing-type discharge mechanism driven by either a hydraulic or pneumatic system, allowing pellets to be discharged smoothly without sudden impact. The discharge speed is automatically adjusted according to the material level, minimizing pellet cracking and fines while maintaining stable residence time. Under normal operating conditions, the finished pellet temperature is typically reduced to 3–5°C above ambient temperature, ensuring excellent storage stability and product quality.

The cooling chamber is designed around the proven counterflow principle, where ambient cooling air moves upward while hot pellets descend slowly by gravity. This opposite-flow arrangement maximizes heat exchange efficiency, prevents thermal shock, and allows pellets to cool evenly from top to bottom. Compared with conventional cooling methods, it delivers more uniform moisture distribution, lower energy consumption, and consistently higher pellet quality.

An advanced mechanical level-control system continuously monitors the pellet bed inside the cooling chamber and automatically regulates the discharge mechanism. This maintains a constant material depth for consistent cooling time and airflow distribution without frequent operator intervention. The automated control system improves production stability, reduces labor requirements, and helps ensure repeatable cooling performance throughout long production runs.

A specially designed four-way adjustable distributor evenly spreads incoming pellets across the entire cooling chamber before cooling begins. Uniform material distribution eliminates localized accumulation, uneven airflow, and short-circuit cooling, allowing every pellet to receive consistent exposure to cooling air. This design significantly improves cooling uniformity, especially when processing high-capacity production lines.

Unlike conventional square cooling chambers, the octagonal structure reduces internal dead zones where pellets may accumulate. The optimized chamber geometry improves airflow circulation throughout the entire pellet bed, reduces material retention, and minimizes cross-contamination during product changeovers. The reinforced steel construction also enhances structural strength and long-term operating reliability.

The discharge hopper features a smooth curved profile rather than conventional sharp corners, allowing pellets to flow naturally without bridging or material buildup. This reduces product residue inside the machine, shortens cleaning time, and helps prevent contamination when switching between different feed formulas or pellet products. The design is particularly beneficial for plants requiring frequent production changes.

The top cover, airlock feeder, and other key material-contact components are manufactured from high-quality stainless steel for superior corrosion resistance and hygiene. This construction extends equipment service life while reducing maintenance requirements, making the counterflow pellet cooler suitable for demanding applications such as aquatic feed, pet food, organic fertilizer, and other moisture-sensitive pellet products.

To accommodate different plant layouts and production capacities, the counterflow pellet cooler can be equipped with either pneumatic or hydraulic discharge systems. For large-capacity installations, an optional motor-driven rotating material distributor further improves layer uniformity inside the cooling chamber, ensuring more consistent airflow, stable cooling performance, and higher overall production efficiency.

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From standalone machines to complete pellet production lines, RICHI has supplied counterflow pellet cooler solutions for customers worldwide. These project videos showcase real installations across different industries, capacities, and materials, demonstrating our engineering capabilities, manufacturing quality, commissioning expertise, and long-term technical support.
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Every counterflow pellet cooler can be customized to match your pellet characteristics, production capacity, plant layout, automation level, and downstream equipment. Whether for feed, biomass, fertilizer, or cat litter production, we design solutions that integrate seamlessly into your process instead of offering one-size-fits-all equipment.
Our counterflow pellet cooler is manufactured using precision fabrication equipment, strict welding standards, and carefully selected components. The robust structure delivers stable performance under continuous operation, making it suitable for both medium-capacity plants and large industrial production lines running around the clock.
Unlike trading companies, RICHI designs and manufactures the counterflow pellet cooler in-house. From machining and fabrication to assembly, testing, and quality inspection, every production stage is carefully controlled, ensuring consistent quality, reliable delivery, and dependable long-term performance.
The counterflow pellet cooler is engineered to work efficiently with pellet mills, crumbler machines, vibrating screens, conveyors, and packaging systems. Whether you purchase a single machine or a complete turnkey plant, we ensure smooth equipment matching and efficient production flow.
RICHI has supplied counterflow pellet cooler equipment for customers across feed processing, biomass energy, organic fertilizer, and pet product industries worldwide. Our practical project experience enables us to recommend proven configurations based on real operating conditions rather than standard catalog specifications.
Choosing a counterflow pellet cooler from RICHI means ongoing technical support beyond equipment delivery. We provide application consulting, layout optimization, installation guidance, commissioning assistance, operator training, spare parts supply, and responsive after-sales service to help customers maintain efficient production.
A high-quality counterflow pellet cooler is more than a cooling device—it directly influences pellet strength, storage stability, and production efficiency. At RICHI, we combine proven engineering, precision manufacturing, and project experience to deliver cooling systems that perform reliably in demanding production environments. From custom design to complete production line integration, every machine is built to maximize long-term value for our customers.
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Our counterflow pellet cooler series includes both SKLF flap-type and SKLY rotary-valve (impeller) models, covering production capacities from 1 to 40 T/H. Whether you are upgrading an existing pellet plant or building a new production line, we can recommend the most suitable model based on your pellet type, output, operating conditions, and future expansion plans. Custom configurations are also available for specialized applications.
| Model | Cooler Type | Output (T/H) | Power (kW) | Cooling Time | Pellet Temperature After Cooling |
|---|---|---|---|---|---|
| SKLF11×11 | Flap-Type Counterflow Pellet Cooler | 1–3 | 1.5 | 6–15 min | Ambient +3~5°C |
| SKLF14×14 | Flap-Type Counterflow Pellet Cooler | 3–5 | 1.5 | 6–15 min | Ambient +3~5°C |
| SKLF17×17 | Flap-Type Counterflow Pellet Cooler | 6–8 | 1.5 | 6–15 min | Ambient +3~5°C |
| SKLF20×20 | Flap-Type Counterflow Pellet Cooler | 8–13 | 1.5 | 6–15 min | Ambient +3~5°C |
| SKLF24×24 | Flap-Type Counterflow Pellet Cooler | 13–20 | 2.2 | 6–15 min | Ambient +3~5°C |
| SKLF28×28 | Flap-Type Counterflow Pellet Cooler | 25–30 | 2.2 | 6–15 min | Ambient +3~5°C |
| SKLF32×32 | Flap-Type Counterflow Pellet Cooler | 30–40 | 2.2 | 6–15 min | Ambient +3~5°C |
| SKLY11×11 | Rotary-Valve (Impeller) Counterflow Pellet Cooler | 1–3 | 1.5 | 6–15 min | Ambient +3~5°C |
| SKLY14×14 | Rotary-Valve (Impeller) Counterflow Pellet Cooler | 3–5 | 1.5 | 6–15 min | Ambient +3~5°C |
| SKLY17×17 | Rotary-Valve (Impeller) Counterflow Pellet Cooler | 6–8 | 1.5 | 6–15 min | Ambient +3~5°C |
| SKLY20×20 | Rotary-Valve (Impeller) Counterflow Pellet Cooler | 8–13 | 1.5 | 6–15 min | Ambient +3~5°C |
| SKLY24×24 | Rotary-Valve (Impeller) Counterflow Pellet Cooler | 13–20 | 2.2 | 6–15 min | Ambient +3~5°C |
| SKLY28×28 | Rotary-Valve (Impeller) Counterflow Pellet Cooler | 25–30 | 2.2 | 6–15 min | Ambient +3~5°C |
| SKLY32×32 | Rotary-Valve (Impeller) Counterflow Pellet Cooler | 30–40 | 2.2 | 6–15 min | Ambient +3~5°C |
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A Canadian biomass producer installed a 12 T/H counterflow pellet cooler to cool softwood sawdust pellets from 16% to 8% moisture before export for residential heating. RICHI also supplied conveying, screening, dust collection, and packaging equipment.
The counterflow pellet cooler operates reliably throughout long production shifts. Pellet quality remains consistent, and RICHI provided excellent technical support during installation and commissioning.

An Indian feed manufacturer selected a 10 T/H counterflow pellet cooler for pig feed pellets made from maize and soybean meal. Moisture was reduced from 17% to 11.5%, improving storage stability and product durability for commercial feed distribution.
The cooling performance fully meets our daily production requirements. The installation was smooth, and RICHI responded quickly whenever technical support was required.

A French forage processor uses an 8 T/H counterflow pellet cooler for alfalfa pellets. Cooling lowers moisture from 15% to 10%, preserving nutritional quality and ensuring stable storage for dairy and horse feed applications.
The finished alfalfa pellets now store much more safely throughout the year. Equipment quality is excellent, and the entire project was completed professionally.

A Polish fertilizer producer installed a 15 T/H counterflow pellet cooler to cool organic fertilizer pellets from 18% to 12% moisture. The finished pellets are bagged for commercial farming, while RICHI supplied the complete cooling and conveying section.
The cooling system performs exactly as promised under continuous operation. The pellets remain uniform after packaging, and maintenance has been simple and efficient.

A Turkish pet food manufacturer selected a 6 T/H counterflow pellet cooler for cat food pellets. Cooling reduces moisture from 15% to 9%, helping preserve pellet texture before oil coating, packaging, and nationwide distribution.
The counterflow pellet cooler handles our pet food pellets very smoothly. Product consistency has improved, and the installation process was completed on schedule.

A Malaysian pet products company operates a 5 T/H counterflow pellet cooler for tofu cat litter pellets made from soybean fiber. Moisture is reduced from 14% to 8%, producing harder pellets with lower dust for retail packaging.
The cooled cat litter pellets are harder and produce noticeably less dust. RICHI delivered the equipment on time and provided clear commissioning guidance.

An Algerian feed mill installed an 8 T/H counterflow pellet cooler for poultry feed pellets. Moisture drops from 17% to 11%, improving pellet durability and storage before delivery to local broiler and layer farms.
Our poultry feed pellets cool evenly before screening and packaging. The machine is easy to operate, and production has remained stable since startup.

A Romanian biomass company uses a 10 T/H counterflow pellet cooler for wheat straw pellets. Cooling lowers moisture from 15% to 8%, producing durable biomass fuel pellets for industrial boilers and heating plants.
The finished wood pellets now meet our quality requirements for export. We appreciate the reliable equipment and the professional engineering support throughout the project.

An Indonesian feed producer selected a 15 T/H counterflow pellet cooler for cattle feed pellets made from corn, palm kernel meal, and rice bran. Moisture decreases from 16% to 11% before commercial distribution.
The cooling system works efficiently even during high-capacity production periods. The complete project was well organized, and after-sales communication has been excellent.

A New Zealand manufacturer installed a 6 T/H counterflow pellet cooler for pine animal bedding pellets. Cooling reduces moisture from 15% to 8%, producing low-dust bedding for dairy farms, horse stables, and livestock facilities.
The bedding pellets remain clean, durable, and easy to package after cooling. The equipment has operated reliably with very little maintenance required.

A Kazakh biochar producer invested in an 8 T/H counterflow pellet cooler for carbonized biomass pellets. Moisture falls from 13% to 8%, creating stable pellets for soil improvement, carbon sequestration, and industrial applications.
The counterflow pellet cooler provides stable cooling for our biochar pellets. RICHI understood our process well and recommended a practical solution for the project.

An Australian feed company installed a 12 T/H counterflow pellet cooler for sheep feed pellets containing lucerne meal and cereals. Moisture is reduced from 16% to 11%, ensuring reliable storage and transportation across grazing regions.
The cooled sheep feed pellets maintain excellent hardness during storage and transport. The machine runs smoothly, and technical assistance has always been available when needed.

A 2 T/H aquafeed plant uses a counterflow pellet cooler for floating fish feed pellets. Moisture decreases from 18% to 10%, helping maintain buoyancy and feed stability during storage and feeding.
The floating fish feed maintains good pellet quality after the cooling stage. RICHI helped optimize the operating parameters during commissioning, which saved us valuable time.

A German recycling company selected a 20 T/H counterflow pellet cooler for RDF fuel pellets. Cooling reduces moisture from 15% to 9%, improving storage safety and transportation to waste-to-energy power plants.
The cooling system performs reliably under continuous industrial production. Equipment quality is excellent, and the entire project was delivered exactly as agreed.

A Brazilian fertilizer manufacturer installed a 10 T/H counterflow pellet cooler for chicken manure pellets. Moisture decreases from 18% to 11%, preventing caking before bagging and agricultural application.
The fertilizer pellets no longer stick together during storage and packaging. The complete system operates efficiently, and RICHI has been responsive whenever support was required.

A Thai aquafeed producer operates a 6 T/H counterflow pellet cooler for shrimp feed pellets. Cooling lowers moisture from 18% to 10%, improving pellet durability and water stability before export and domestic sales.
The shrimp feed pellets cool uniformly without affecting product quality. We are pleased with both the equipment performance and the professional service throughout the project.

A U.S. pet food manufacturer installed an 8 T/H counterflow pellet cooler for premium dog food pellets. Moisture is reduced from 15% to 9%, ensuring stable coating performance and longer shelf life.
The finished dog food pellets have excellent appearance and handling properties. RICHI delivered a dependable solution and provided helpful technical support after installation.

A Vietnamese feed mill selected a 5 T/H counterflow pellet cooler for flake feed products. Cooling stabilizes moisture from 16% to 11%, preparing the finished feed for commercial packaging and livestock farms.
The cooling system works well with our flake feed production process. Installation was straightforward, and the equipment has operated reliably since commissioning

An Argentine fertilizer company uses a 12 T/H counterflow pellet cooler for compound fertilizer pellets. Moisture decreases from 17% to 10%, improving pellet strength for storage, transportation, and field application.
The compound fertilizer pellets remain free-flowing after cooling and storage. RICHI provided a complete solution that matched our production requirements very well.

A Japanese recycling enterprise installed an 8 T/H counterflow pellet cooler for pyrolysis carbon pellets. Moisture drops from 13% to 8%, producing stable carbon pellets for environmental and industrial applications.
The cooling process has improved the consistency of our carbon pellets significantly. The equipment is well manufactured, and communication throughout the project was professional and efficient.

A Swedish biomass producer invested in a 5 T/H counterflow pellet cooler for premium sawdust pellets made from spruce residues. Moisture is reduced from 16% to 8%, producing durable fuel pellets for district heating systems.
The cooled sawdust pellets have excellent durability during storage and transportation. We are satisfied with both the machine performance and the long-term technical support from RICHI.
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A counterflow pellet cooler system is more than a single machine—it is a fully engineered cooling solution designed around your production process. Depending on the pellet type, plant layout, and required capacity, the system can include material conveying, dust collection, screening, crumbling, automation, and discharge equipment. Whether you need a standalone cooling station or a module integrated into an existing pellet plant, RICHI designs, manufactures, and configures every system to match your production objectives, ensuring reliable operation and efficient material handling.

Includes bucket elevators, screw conveyors, belt conveyors, chain conveyors, and rotary valves for smooth pellet transfer before and after cooling.

Equipped with pulse dust collectors, ductwork, fans, airlocks, and filtration units to maintain a cleaner production environment and recover valuable fines.

Integrates vibrating screens, rotary screens, return conveyors, and collection hoppers to separate fines, oversized pellets, and qualified finished products.

Combines pellet crumbler, feeding devices, bypass lines, and conveyors to produce high-quality crumbled feed for young poultry and aquatic animals.
Whether you need a standalone cooling station or a module integrated into an existing pellet plant, RICHI designs, manufactures, and configures every system to match your production objectives, ensuring reliable operation and efficient material handling.
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The price of a counterflow pellet cooler generally ranges from USD 3,000 to over USD 60,000. The final cost depends on capacity, pellet type, automation level, discharge system (SKLF or SKLY), construction materials, and whether it is supplied as a standalone pellet cooling machine or as part of a complete production line. We provide detailed quotations based on your project requirements.
In most cases, yes. However, the cooling chamber, airflow, discharge mechanism, and control settings should be matched to the material. A feed pellet cooler and a wood pellet cooler may look similar, but the optimal configuration differs according to pellet density, moisture, and strength.
The pellet cooler should normally match or slightly exceed the pellet mill's actual output. Capacity selection also depends on pellet diameter, moisture, bulk density, ambient temperature, and expected operating hours. We evaluate the complete production process before recommending a model.
Yes. For small-diameter pellets, especially shrimp feed, airflow and discharge speed must be carefully controlled. Our aqua feed pellet cooler solutions are configured to minimize pellet loss while maintaining cooling efficiency and water stability.
RICHI offers two main designs: the SKLF flap-type counterflow pellet cooler and the SKLY rotary-valve (impeller) counterflow pellet cooler. Each is suitable for different pellet characteristics, production capacities, and process requirements. We recommend the appropriate model after reviewing your material and production targets.
Yes. We have supplied pellet cooler for feed mill projects in Southeast Asia, South America, Africa, and the Middle East. In humid climates, we optimize airflow, cooling time, and system configuration to help maintain stable pellet quality and minimize moisture-related storage issues.
Yes. A feed pellet counterflow cooler can process poultry, livestock, and aquatic feed, provided the operating parameters are adjusted for each product. We also consider cleaning requirements when customers frequently switch between different feed formulas.
In many retrofit projects, yes. Our engineers evaluate the existing layout, elevations, conveyors, and electrical systems before recommending a replacement. The new vertical feed pellet cooler can often be integrated with minimal modifications and reduced downtime.
For biomass applications, we configure a wood pellet counterflow cooler, biomass pellet cooling system, or biomass pellet cooler machine according to the raw material. Whether you produce wood, sawdust, or straw pellet cooler applications, the cooling process is designed to improve pellet hardness, storage performance, and transport stability.
Yes. We regularly supply organic fertilizer pellet cooler, fertilizer pellet cooling equipment, chicken manure pellet cooler, and animal manure pellet cooling machine solutions. The system is selected according to pellet moisture, granule strength, corrosion requirements, and production capacity.
To recommend the right pellet cooler for sale, we typically need your raw material, pellet diameter, hourly capacity, pellet temperature after pelleting, target moisture, plant layout, and whether the cooler will operate independently or with an existing production line. This allows us to recommend the most suitable animal feed pellet cooling machine, poultry feed pellet cooler, livestock feed pellet cooler, or aqua feed pellet cooler configuration for your project.
Not always. Pellet breakage may be caused by formulation, conditioning, pelleting, or cooling. We evaluate the entire process before determining whether the counterflow pellet cooler requires adjustment or whether another section of the line is responsible.
The required footprint depends on cooler size, conveyors, maintenance access, and dust collection equipment. We provide layout drawings before manufacturing so the pellet cooling machine fits your available workshop space without affecting future expansion.
Yes. Many customers install our counterflow pellet cooler behind existing pellet mills or packaging systems from other brands. We can customize inlet, outlet, support height, and control interfaces to simplify integration.
Yes. Pellet size directly affects airflow resistance and residence time. Whether producing 2 mm fish feed or 10 mm cattle feed, we adjust the feed pellet cooler configuration to achieve uniform cooling without over-drying the pellets.
For most commercial plants, yes. Dust collection improves the working environment, reduces product loss, and protects downstream equipment. We recommend the appropriate dust control system based on your production capacity and material characteristics.
Yes. A properly configured wood pellet cooler can cool pellets made from sawdust, wood shavings, forestry residues, straw, and many agricultural fibers. Different raw materials simply require different airflow and cooling parameters.
Delivery depends on model size, customization level, and project scope. Standard models are generally completed faster, while complete cooling systems require additional engineering and factory testing before shipment.
Yes. Pellet surface temperature can be misleading. Internal heat and moisture remain trapped inside fresh pellets. Proper cooling stabilizes the product, reducing the risk of condensation, mold, and deformation during storage.
Absolutely. Many customers purchase only a counterflow pellet cooler to improve product quality or increase production efficiency. We can design the upgrade around your existing equipment and minimize plant modifications.
Yes. We manufacture equipment for 380V, 400V, 415V, 440V, 460V, 480V, and other international electrical standards, ensuring the cooling system complies with local power requirements.
High-fiber pellets usually retain heat longer than conventional feed. Our livestock feed pellet cooler solutions optimize residence time and airflow to achieve stable cooling while maintaining pellet durability.
Yes, but these materials require special attention during system design. We adjust airflow, discharge control, and internal structure to prevent sticking and maintain stable production.
We consider both your current output and future expansion plans. In many cases, selecting a slightly larger counterflow pellet cooler today avoids costly equipment replacement later.
Yes. During cooling, excess heat removes part of the surface moisture while stabilizing the internal moisture distribution. Proper cooling improves storage performance without excessively drying the pellets.
Yes. Besides the counterflow pellet cooler, we can supply complete cooling modules including bucket elevators, conveyors, vibrating screens, dust collectors, and automatic control systems.
Routine inspection mainly includes checking moving components, cleaning dust accumulation, lubricating transmission parts, and monitoring discharge mechanisms. Regular maintenance helps maintain stable cooling efficiency and extends equipment life.
Every counterflow pellet cooler undergoes assembly inspection, dimensional verification, operational testing, and quality checks before delivery. When required, we also provide factory acceptance testing based on customer specifications.
Yes, although different operating parameters are required. We configure airflow, residence time, and discharge settings according to pellet density, fat content, and product characteristics to ensure consistent cooling quality.
RICHI is a manufacturer of pellet equipment and complete production lines, not simply a reseller. We design, manufacture, customize, install, and support every counterflow pellet cooler based on actual production requirements, backed by practical project experience across feed, biomass, fertilizer, and pet product industries worldwide.
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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.
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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.
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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.
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