EFB Pellet Mills
The RICHI Empty Fruit Bunch (EFB) Pellet Mill is specifically designed for high-moisture, high-fiber, and low-lignin raw materials—such as empty fruit bunches and palm kernel shells—converting these waste materials into high-quality biomass pellets through a ring-die extrusion process.
Production capacity : 1-40t/h
RICHI EFB
Pellet Making Machine
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
Empty Fruit Bunches (EFB) are the main fibrous by-product of palm oil production. With the rising demand for biomass energy, EFB pellet machines turn these waste materials into high-density pellet fuel. The pellets work well in applications like power generation, heating, and industrial boilers.
By simultaneously addressing environmental concerns and generating economic value, the empty fruit bunch pelletizer stands as a vital piece of equipment in the contemporary field of biomass energy.
Highly adaptable
This machine processes a wide range of palm waste materials—including empty fruit bunches (EFB), palm kernel shells, palm fibers, and oil palm EFB—and also handles pelletizing for biomass energy sources like rice husks and crop stalks.
The finished pellets serve extensive applications in large-scale power generation, district heating, industrial boilers, catering, domestic heating, animal feed and organic fertilizer production.
Wear-Resistant and Corrosion-Resistant
The ring die incorporates numerous innovations in process design—including material composition and heat treatment—resulting in effective enhancements to its crack resistance, hourly output, and total production yield.
The feed auger, conditioner, and main cover are all constructed from stainless steel to prevent raw material contamination caused by equipment corrosion and to extend the service life of the equipment.
Stable and Reliable Operation
The machine’s entire transmission system utilizes high-precision gearing, along with high-quality imported bearings and oil seals; while boosting efficiency by approximately 15% compared to belt-driven models, it simultaneously ensures highly efficient, stable, and low-noise transmission performance.
Equipped with an internationally advanced compensating serpentine spring coupling, distinguished by such notable characteristics as safety, reliability, and a low failure rate.
Broad Production Capacity Coverage
We provide six standard models from CZLH320 to CZLH768, with hourly output of 0.5 to 8 tons. We can scale the entire production line up to 40 tons per hour and integrate a full automatic PLC control system into the system.
Users may select from top-tier international brands—such as Siemens, Schneider, and Delta—to enable a range of intelligent operations, including one-touch start/stop, real-time online monitoring, and fault alarms.
Various Capacities
Many customers face challenges in terms of production capacity when choosing a EFB pellet mill. RICHI offers a variety of EFB pellet mill models for your selection; the specific parameters for each model are listed below.
Empty fruit bunch production
| Model | MZLH320 | MZLH350 | MZLH420 | MZLH520 | MZLH678 | MZLH768 |
| Main Motor Power(kw) | 22 | 37 | 90 | 132 | 200 | 250 |
| Arch-Breaking Feeder Power(kw) | 2.2 | 2.2 | 3 | 3 | 3 | 4 |
| Forced Feeder Power(kw) | 0.75 | 0.75 | 1.5 | 1.5 | 1.5 | 1.5 |
| Ring die inner diameter（mm） | 320 | 350 | 420 | 520 | 673 | 762 |
| Finished Granule Diameter(mm) | 4~12 | |||||
| Output（T/H） | 0.2-0.3 | 0.3-0.5 | 1.0-1.2 | 1.5-2.0 | 2.5-3.0 | 3.0-4.0 |
Main Components
of Pellet Mill
EFB pellet making machine is mainly composed of three main parts: arch-breaking feeder, forced feeding device and main machine. The following is a brief introduction to the main components of the pellet maker.
arch-breaking forced
Variable-Frequency
Tailored to the characteristics of long and easily entangled fibers of EFB, this machine is engineered with a large-capacity arch-breaking hopper and adopts a dual-shaft counter-rotating stirring structure. Meanwhile, it is fitted with variable-frequency feeding regulation, which automatically adjusts the feed rate based on the main motor current, thereby delivering a uniform and steady material flow for downstream working sections.
forced feeding device
High-Force Push-Type
An extended variable-pitch forced feeder is adopted to forcibly compact and convey fluffy EFB fibers into the pelleting chamber. Its adjustable feeding speed makes it well suited for raw materials with varying moisture contents. Furthermore, the drive system is configured with a worm gear reducer. Compared with conventional belt drive, it achieves more precise gear ratio matching and reduces long-term maintenance costs.
Granulation Main Unit
Intelligent and Efficient
This unit uses a high-efficiency Siemens motor and comes with an intelligent power regulation system.We fabricate the ring die and pressure rollers from stainless steel and 42CrMo alloy to greatly reduce wear and tear. Furthermore, the machine is fitted with safety protection mechanisms that automatically cut off power in the event of abnormal operating conditions, thereby ensuring the safe and secure operation of the equipment.
EFB Pellet Mill for Sale
You are free to select a EFB pellet machine with the specific capacity that best suits your personal budget and desired production output.
Small-scale biomass pellet production (1-5 tons/hour)
Main Equipment: Drum chipper, teardrop-type pulverizer, MZLH series pellet mill, arch-breaking feeder, forced feeder, suspended iron remover, counterflow cooler, etc.
The production line is available in two configurations: a standard version and a high-end version. The standard version features a segmented layout and entails lower investment costs. The high-end version requires a workshop with an overall ceiling height of approximately 12 meters and is equipped with a drying system.
Target Audience: Small-scale livestock farmers, biomass pellet startups, regional fuel supply stations
Output Range: Covers multiple tonnage ranges, including 1–1.2T, 2–2.5T, 3–3.5T, 4–5T
Medium-scale biomass pellet production (6-10 tons/hour)
Main Equipment: Drum chipper, teardrop-type pulverizer, MZLH520 pellet mill, rotary dryer, u-type screw conveyor, counterflow cooler, vibrating screen, packaging Scale, pulse dust collector, etc.
In the standard-configuration production line, each section features independent material stockpiling and requires manual feeding. In contrast, the high-end configuration adopts a fully automated continuous line with fully integrated equipment, and the whole line comes with dust removal and sound insulation facilities.
Target Audience: Biomass fuel plants, heating companies, and pellet production enterprises
Output Range: Covers two weight classes, 6–7.5T and 8–10T
Large-scale biomass pellet production (16-20 tons/hour)
Key Equipment: 6–8 large-scale granulators (operating in parallel), a central computerized automatic batching system, a modular drying system, extra-large storage silos, a fully automated packaging system, a heat-sealing machine, etc.
Applicable Materials: Wet sawdust, straw, forage grass, tree bark, empty palm fruit bunches, formwork waste, etc. We provide fully automated “turnkey” solutions, covering the entire process from raw material reception to finished product packaging. Optional steam boiler systems and fat addition systems are available.
Target Audience: Large-scale biomass power plants, industrial boiler fuel groups, and multinational pellet manufacturing enterprises
Output Range: 16–20T
Ultra-large-scale biomass pellet production (24-30 tons/hour)
Key Equipment: Multiple large-scale granulators operating in parallel, an industrial-grade drying system, a fully automated computer-controlled batching system, a cluster of high-capacity storage silos, a fully automated high-speed packaging line, heavy-duty shredders, and more.
The specific process sections share a similar structure with the 16–20 ton line, while we further upgrade the specifications and quantities of all equipment. The production line delivers high integration and adopts a modular design, allowing it to support 24-hour continuous operation.
Target Audience: Super-large-scale Biomass Power Plants and Biomass Energy Bases
Output Range: 24–30T
EFB pellet Process Flow
RICHI EFB pellet mills offer modular solutions from raw material receiving to finished product packaging. Below is the processing flow of their production line.
Cleaning and Impurity Removal
Use a rotary screen to remove large debris, stones, metals, and other impurities from the raw materials, and perform preliminary crushing if necessary.
Crushing and Grinding
Raw materials that meet the size specifications and are sufficiently dry are fed into a hammer mill to be ground into a fine powder. For materials with high toughness—such as empty fruit bunches or palm fibers—prior processing by a chipper or coarse crusher may be required.
Drying
The moisture content of the pulverized material is often relatively high; therefore, it requires hot-air drying using a rotary dryer to control the moisture level within the optimal range required for granulation (typically 12% to 18%).
Granulation
The thoroughly mixed raw materials enter the Empty Fruit Bunch (EFB) pelletizer, where they are formed into cylindrical pellets under the extrusion force of the ring die and pressure rollers. During the compaction process, any unformed powder automatically returns to the powder hopper for reprocessing.
Cooling and Screening
High-temperature particles enter a counter-current cooler to cool to room temperature, and are then classified by a vibrating screen to remove fine powder.
Packaging
The qualified finished granules enter the automated packaging system, where weighing, sealing, and warehousing are completed.
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.
EFB pellet case studies
●USA
11-12 T/H Grass Pelleting Production Line
Main equipment: 90 kW Hammer Mill, 1000 kg Mixer, 160 kW New-Type Hemp Wood Pellet Mill, Cooler, Crusher, Sifter etc.
- Ingredients : Hemp
- Product dimensions : 1-12mm
●Indonesia
3–5 T/h Ruminant Feed Pelleting Production Line
Main equipment: Double-ribbon mixer, 132 kW pelletizer with side feeder, and two galvanized storage bins of different capacities.
- Ingredients : Straw, Alfalfa, Rice Husks, Corn
- Product dimensions : 6-12mm
●Hong Kong, China
3-4 T/H Ruminant Feed Pelleting Production Line
Main equipment: Hammer Mill, Dryer, Mixer, Storage Bin, Granulator, Cooler, Vibrating Screen, Automatic Packaging Machine.
- Ingredients : 80% Fresh Pasture Grass
- Product dimensions : 6-12mm
●Uzbekistan
0.8-1.2 T/H Ruminant Feed Pelleting Production Line
Main equipment: SZLH Series Double-Layer Conditioner Ring-Die Pellet Mill, Single-Roller Double-Rotation Belt Mixer, Cooling Belt, etc.
- Ingredients : Crop Straw, Forage Grass
- Product dimensions : 2.5mm,3mm,8mm
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 pellet 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 EFB pellet mills 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.
What is an arch-breaking feeder?
An arch-breaking feeder is a specialized device mounted on the mill feeding hopper. Agricultural residues such as stalk powder and grass powder have poor fluidity and tend to form bridging blockages inside the hopper and stop feeding. Built with a low-speed stirring shaft, it continuously agitates materials to break arching structure, ensuring steady and uniform material flow into the downstream forced feeder for stable continuous production.
Is it necessary to add a binder?
In the vast majority of cases, no additives are required. Empty fruit bunches naturally contain a certain amount of lignin, which allows them to bind naturally under appropriate temperature and pressure. Additions of 1% to 3% starch or vegetable oil are necessary only when the raw material consists of pure palm fiber or when pellets of exceptionally high hardness are required.
Why produce palm kernel shell pellets?
PKS possesses a low moisture content, which effectively enhances combustion efficiency. Furthermore, PKS pellets have a higher calorific value than raw PKS material and can help alleviate energy pressures by serving as a substitute for coal. Once pelletized, palm kernel shells offer clean usage as well as convenient storage and transportation.
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.
What is the minimum requirement to start a commercial animal feed production project with RICHI?
We only focus on large-scale farming animal feed projects and commercial feed production projects. If you are looking for a small machine to produce your own animal feed at home, we are not the right choice – we would rather tell you upfront to save your time. Our starting point is a production capacity of 1 ton per hour and an investment of $30,000.
