Wood Pellet Extruder Machine
Wood pellet extruder machine is a device that transforms raw logs, wood processing waste, and other raw materials into 6 – 10mm pellet fuels through a certain process.This type of pellet fuel is widely applied in fields such as biomass energy, environmental protection, heating, and industrial fuels, and it offers pretty significant economic benefits.
RICHI wood pellet making machine relies on high-quality performance and can adapt to various biomass raw materials. It has a high output and an hourly output of 1-10 tons, which can meet the production needs of different scales.
What Is wood pellet extruder machine?
wood pellet extruder machine
As a fuel manufacturing equipment, the wood pellet mill, also known as a wood granulator machine, compresses powdered wood material with a size of 3-5 mm and a moisture content of 13-18% into 6-10 mm particles through mechanical extrusion.
On the one hand, waste wood can be turned into treasure to reduce environmental pollution pressure. On the other hand, this particle can be used as a new type of combustion energy for power generation and heating. Especially with the rise in household energy demand, the wood pellet machine for home use has become increasingly popular due to its renewability and low pollution characteristics.
What Are The Components Of The Wood Pellet extruder Machine?
As the core equipment for wood pellet production line, the wood pellet making machine is the basis for efficient and stable operation of machinery.
In view of the high fluffy and poor fluidity of biomass raw materials such as wood chips and logs, this equipment is specially equipped with broken bale machine parts, which can break the raw materials and add forced feed spiral devices.
This design can not only improve the efficiency of raw materials, but also effectively solve the production capacity bottleneck problem caused by poor feeding of traditional equipment, but also greatly reduce material losses caused by raw material residues or blockages.
The overall production efficiency is increased by about 30%, and the raw material utilization rate is increased to more than 95%, providing reliable guarantees for large-scale and continuous production of the factory.
Wood Pellet Extruder Machine: Classification by Structure and Raw Materials
The wood pellet press plays a vital role in converting a variety of biomass materials into compact, energy-efficient pellets. To choose the right machine for your production needs, it’s important to understand how these machines can be categorized based on both mechanical structure and raw material types. Below is a complete breakdown:
Classification by Machine Structure
Flat Die Wood Pellet Extruder Machine
This type uses a flat die plate with a rotating roller. It features a simpler design and is generally used for small-scale or home-use pellet production. However, due to its limited pressure and capacity, it is not ideal for high-volume or industrial operations.
Ring Die Wood Pellet Extruder Machine
This is the mainstream type used by RICHI. It features a ring-shaped die with a rotating roller inside. The structure allows for greater compression, higher output, and better pellet density. RICHI’s ring die machines also include intelligent control systems and wear-resistant components to ensure stable performance and long service life, making them ideal for commercial biomass fuel production.
Classification by Raw Material Type
The type of raw material you use directly affects the pre-treatment process and final pellet quality. Here are four major raw material categories commonly used with wood pellet mill machine:
Whole Logs and Wood Blocks
Materials: Logs, tree trunks, large branches (≤ 30 cm diameter)
Features: Rich in long fibers and high energy value, but sourcing requires felling permits and higher cost.
Pre-treatment: Use a wood crusher to reduce size; dry if moisture content is high.
Waste Furniture and Composite Boards
Materials: Used furniture, construction waste, chipboards
Features: Cost-effective and widely available, but often mixed with nails, coatings, or glues.
Pre-treatment: Manual disassembly and impurity removal, followed by crushing the wood components.
Forestry Waste and Tree Residues
Materials: Bark, twigs, sawmill scraps, leaves
Features: Low cost and abundant in supply; suitable for large-scale pellet operations.
Pre-treatment: Crush into small, uniform pieces; dry if needed to ensure consistent pellet quality.
Wood Chips and Bamboo Materials
Materials: Pine chips, hardwood fragments, bamboo powder, bamboo strips
Features: High purity, low ash content, and stable burning performance.
Pre-treatment: Adjust moisture content and particle size through screening, drying, or fine crushing.
Parameter and Model of Wood Pellet Extruder Machine
Choosing the right wood pellet maker machine is very important if you want stable performance, good pellet quality, and high output. The model you choose should match your raw materials (like sawdust, wood chips, or waste wood), your production goals, and your factory space.
At RICHI, our wood pellet maker machines can be customized to produce from 1 ton to 40 tons per hour, depending on your raw materials, pellet size, and production needs.
The models listed below are just some of our standard options—we can also design and customize machines with different capacities, motor configurations, and feeding systems to match your specific requirements. Whether you’re running a small workshop or a large-scale pellet plant, we have a solution for you.
| model | Output (T/H) | Main Motor (kW) | pellet diameter (mm) | weight | Size (mm) |
| MZLH320 | 0.2–0.3 | 22 | 4 – 12mm | 2500KG | 2200×900×1300 |
| MZLH350 | 0.3–0.5 | 37 | 4 – 12mm | 3500KG | 2500×1100×1600 |
| MZLH420 | 1.0–1.2 | 90 | 4 – 12mm | 4000KG | 2800×1150×1730 |
| MZLH520 | 1.5–2.0 | 132 | 4 – 12mm | 4500KG | 3000×1260×1860 |
| MZLH768 | 2.5–3.0 | 185 | 4 – 12mm | 5000KG | 3300×1500×2000 |
| MZLH858 | 3.0–4.0 | 250 | 4 – 12mm | 5500KG | 3500×1600×2180 |
Tips for Choosing a Suitable Wood Pellet Extruder Machine
Choose the equipment type according to the production needs
For large – scale production, a ring – die pellet machine is the priority. For small – scale production, a flat – die pellet machine can be a good option.
Pay attention to equipment quality
Try to choose equipment parts that are wear-resistant materials (such as ring molds, press rollers), and have high-quality motors and transmission systems.This ensures long – term and stable operation.
Consider the after – sales service
Choose a manufacturer that has a technical team and the ability to supply spare parts. This can help reduce the later – stage maintenance costs.
Conduct on – site inspections
If conditions permit, you can visit the manufacturer’s factory or the user’s site to understand the actual operating effects of the equipment.
Product advantages of wood pellet extruder machine
As a key link in the production and processing of wood,the pellet machine needs to be equipped with high-quality processes and designs. RICHI pellet machine is widely sold around the world with its unique product advantages.
High Efficiency and User – Friendliness
RICHI wood pellet making machine is equipped with a Siemens motor, which helps reduce energy consumption. Its core transmission system uses SKF bearings, combined with optimized ring die extrusion technology and precision mold design, to achieve continuous and stable operation in 24 hours.
The equipment has a high degree of automation, all components work closely together, the key parameters are adjusted intuitively, and an intelligent control system is equipped with a simple and convenient operation.
Strong structural quality
The wood chip pellet machine of core consumable parts such as press rollers are made of 40CrMnTi and ring dies are made of 42CrMol, which is corrosion-resistant and operates with the equipment for a long time.
Besides, the machine is equipped with a fully automatic CNC ring die drilling machine and vacuum heat treatment technology. The particles produced are high in density, good hardness, smooth surface, uniform length, low ash content, and very high combustion efficiency.
Careful design and easy maintenance
The equipment adopts a modular design, and the key components are conveniently maintained, which greatly shortens downtime and improves operating efficiency.
The whole machine is equipped with comprehensive safety protection devices, meeting international safety standards. Its good sealing design effectively controls dust overflow, taking both environmental protection and operational safety into account.
Related Cases Of Wood Pellet Extruder Machine for sale
RICHI MACHINERY
RICHI Machinery, relying on its rich industry experience and advanced technology, has successfully delivered thousands of biomass pellet production lines. Among them, the wood pellet press for sale has become one of the most popular equipment choices for customers seeking efficient and reliable biomass fuel production solutions.
These include wood chip pellet production lines, straw pellet production lines, rice straw pellet production lines, and so on. Moreover, we can offer customized solutions to meet your individual needs. If you’re interested in pellet projects, feel free to contact us at any time.
2T/H Wood Pellet Extruder Machine for sale Russia
Pellet size: 6mm
Raw material: wood sawdust
Main equipment: wood pellet making machine, vibrating screen, belt conveyor, bucket elevator, etc
3T/H USA Full Automatic Wood Pellet Line
Pellet size: 6-10mm
Raw material: wood chips and sawdust
Main equipment: drum wood chipper machine, wood dryer machine, wood pellet making machine, etc
5T/H Biomass wood pellet mill for sale Germany
Pellet size: 6mm
Raw material: pine sawdust and wood shavings
Main equipment: rotary drum wood dryer, wood granulator, cyclone separator, pellet cooler, automatic packing machine
8T/H Canada Large Wood Pellet Production Project
Pellet size: 6–8mm
Raw material: mixed hardwood chips and bark
Main equipment: industrial wood chipper, wood hammer mill, wood pellet machine, pellet screener, bucket elevator
10T/H Commercial wood pellet machine for sale Poland
Pellet size: 6mm
Raw material: waste furniture boards and softwood chips
Main equipment: high-efficiency crusher, rotary drum dryer, ring die wood granulator, cooler, automatic bagging system
13T/H High-Capacity Wood Pellet Extruder Machine for sale South Korea
Pellet size: 6–10mm
Raw material: forestry residues and wood blocks
Main equipment: heavy-duty chipper, industrial wood dryer, large-scale wood pellet mill, screening machine, cyclone dust collector
22T/H Indonesia Industrial Biomass Pellet Plant
Pellet size: 8mm
Raw material: acacia wood chips and sawdust
Main equipment: triple-pass drum dryer, multiple units of wood granulators, pellet cooling tower, bagging line, belt conveyors
wood pellet extruder machine Is Used On The Production Line
Wood pellet making machines are crucial in the entire wood processing production line. It serves as a key link for the efficient and large – scale production in the biomass energy industry. Through crushing, crushing, drying, granulation and other processes, waste resource utilization is achieved.
Raw Material Crushing
Logs, wood blocks, and waste wood such as old furniture are first processed by a drum chipper for coarse crushing. Then, a hammer mill further grinds the materials into uniform fine particles (around 3–5mm), which are ideal for pelletizing and ensure smooth processing in later stages.
Material Drying
After crushing, the wood particles are sent into a rotary drum dryer. This equipment reduces moisture content to between 13%–18%, which is optimal for pellet formation. Proper drying improves pellet quality, prevents clogging in the pelletizer, and enhances overall energy efficiency.
Material Conveying & Storage
Once dried, materials are transported using screw conveyors or bucket elevators into pellet silos for temporary storage. Automated conveying systems ensure steady material flow, reduce labor, and guarantee that the wood pellet mill receives a continuous and stable feed.
Pelletizing & Shaping
The dried material is fed into the wood pellet mill with a ring die structure. Under high pressure and temperature, the material is compressed and forced through die holes, forming dense, cylindrical pellets (6–10mm). This process transforms loose biomass into valuable fuel.
Cooling & Screening
Freshly extruded pellets are hot and soft. They are cooled using a pellet cooler, bringing their temperature down to near room level. After cooling, pellets are screened to remove dust, broken pieces, and oversize particles. Dust collection systems help maintain a clean working environment.
Packaging & Storage
Qualified pellets are weighed using automatic packaging scales, bagged, and sealed with heat-sealing equipment. Once packaged, pellets are stacked or stored in a warehouse for distribution. Proper packaging maintains pellet integrity and ensures easy handling and transportation.
Common equipment on wood pellet production line
— Richi Machinery —
To build an efficient and reliable wood pellet line, it is essential to understand the key equipment involved in the production process. From raw material preparation to pellet cooling and screening, each machine plays a vital role in ensuring high-quality biomass fuel output. Below is an overview of the common equipment used in a complete wood pellet production line.
Drum chipper
Mainly aimed at customers, the raw material is logs, which are used to cut logs into 2-3cm thin sheets.
wood pellet extruder machine
Used to make wood chip raw materials and other finished pellet.
Wood hammer mill
Mainly crushes small wood chips into 3-5mm wood chips to facilitate pelleting.
Counterflow Cooling
Used for cooling finished pellets, use indoor air to cool pellets to about room temperature.
Rotary drum Dryer Machine
Used to dry the moisture content in wet materials to about 15%, making it easier to facilitate pelleting.
Rotary Screener
Used for screening of finished pellets, remove powder and fragments in the granules to ensure the quality of finished pellets.
Why Choose RICHI Machinery?
RICHI Machinery has been deeply involved in the pellet manufacturing industry for 30 years. Its customers are spread across Europe, America, Africa, Asia Pacific, Middle East and other regions, and its sales network covers more than 130 countries and regions. It has successfully completed more than 1,200 complete sets of pellet projects with a high level of professionalism, making it a recognized leader in the industry.
Efficient and comprehensive after – sales service:
RICHI machinery has a comprehensive and well – established after – sales service system. It has multiple overseas logistics routes to ensure that machine arrives safely and on time. Later on, if there’s any abnormality with the customer’s machine, we’ll provide after – sales staff to offer preliminary solutions right away. And within 48 hours, we’ll send professional technicians to the site (within China) for service, minimizing the customer’s downtime.
Scientific customized services:
We have a diverse and rich product system. With over 200 products, we can meet the needs of various biomass production customers. The company is equipped with a professional R&D and design team. According to your actual situation, whether it is a small feed factory or a large industrial feed factory, we will design personalized solutions for you based on the actual situation.
Excellent equipment quality:
RICHI Machinery has won many international authoritative certifications. The company has passed BV certification, ISO9001 International Quality Management System Certification, European CE Certification, and Swiss SGS Certification, among others. You can find us on YouTube.
Frequently Asked Questions
What materials can be used for wood pellet extruder machine?
Wood harvesting residue, wood processing residue, wood shavings, forestry wastes, log, branch, twig, wooden blocks, wood chips, wood sawdust, wood bran, bamboo shavings, etc.
How to maintain the wood pellet making machine?
1.Refuel the transmission parts of the machine regularly. This ensures that the transmission part of the pellet machine can rotate flexibly and reduces the workload.
2.Regularly replace lubricating oil in the gearbox of the wood pellet mill.
3.Check once a week whether the connecting components in each part are loose and whether the travel safety switches are reliable. At the same time, clean the feeder and pelleting chamber to avoid mechanical failures.
4.Check the wear of the pellet machine transmission keys, ring molds, cutters, etc. every half month, and replace the wear in time when it is found.
5.Avoid over – load production; otherwise, it will damage the parts and shorten the service life of the commercial wood pellet mill.
6.Remove impurities from the raw materials to prevent foreign objects from entering the ring die working chamber.
