Wood Granulator machine
The wood granulator machine can compress sawdust, wood chips, agricultural waste materials, etc. into dense fuel pellets, becoming a clean, efficient and renewable energy source. In the context of pursuing renewable energy and sustainable development, it has become an indispensable equipment in the production of biomass fuel.
Brief introduction of rICHI Wood granulator
— Richi Machinery —
brief introduction
A wood granulator machine is an environmentally friendly equipment specifically designed to compress agricultural and forestry waste such as sawdust, wood chips, bark, and straw into high-density biomass pellet fuel. This ring die pellet machine for wood uses a high-pressure physical compression method to compress raw materials (powdered wood materials with a size of 3-5 millimeters and a moisture content of 12-18%) into 6-10 millimeter pellets without the need to add any adhesives.
These pellets are widely used as fuel in areas such as household heating, biomass boilers, and biomass power plants. They can effectively replace traditional energy sources like coal and natural gas, and can significantly reduce carbon emissions, achieving sustainable green energy utilization.
At the same time, it can increase the added value of low-value raw materials such as straw and sawdust, creating new economic benefits for users. This equipment is easy to operate, highly efficient, and low in energy consumption, suitable for pellet production enterprises of different scales, and is an ideal choice for promoting the development of the clean energy industry.
RICHI’s wood granulator is designed to meet a variety of biomass pellet production needs, with capacity ranging from 0.3 tons per hour to 4.0 tons per hour, suitable for small and medium and large production lines. The wood pellet making machine price usually ranges from USD 10,000 to USD 90,000, depending on factors such as production capacity, raw material type, die configuration, motor power, and automation level.
Usage
The produced pellets are used as biomass fuel, cat litter, feed, and so on.
Raw materials
Forestry waste such as sawdust, wood chips, bark, and straw
Production capacity
0.3-4.0 T/H
pellet Size
2-12 mm
How Does the wood granulator machine Work?
The working principle of the wood granulator mainly involves the use of mechanical pressure and friction to press wood chips, sawdust, and other wood waste into uniform-shaped and high-density pellets.
- Firstly, the forced feeding screw device transports the raw materials stably to the granulation chamber.
- In the granulation chamber, the highly efficient pressing rollers and molds work together to compress and extrude the raw materials under mechanical pressure, forming regular cylindrical pellets.
- After the pellets are formed, they are cut to the desired length by the automatic cutting device, and finally discharged by the lifting device and enter the cooling and packaging processes.
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detail structure Of wood granulator Machine
The stable operation of wood granulator machine is inseparable from the precision design and high-quality selection of every core component. From the pressing system to the transmission system, from the lubrication device to the electronic control components, RICHI always adheres to the international manufacturing standards, and is committed to creating high-performance granulation equipment with every detail that can stand the test.
- Feeder
- Variable-frequency feeding motor
- Gearbox
- Siemens motor
- Granulation chamber
- Forced feeder
- Manual feeding port
- SKF bearing
- Lifting device
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Specifications & Parameters
of wood granulator machine
Structure and configuration determine the performance of the equipment. RICHI offers a variety of specifications and models of machines to meet the needs of different production volumes and application scenarios.
| Model | MZLH320 | MZLH350 | MZLH420 | MZLH520 | MZLH768 | MZLH858 |
| Output (t/h) | 0.3-0.4 | 0.5-0.7 | 1.0-1.2 | 2.0-2.5 | 2.5-4.0 | 3.0-4.5 |
| Main motor power (kw) | 37 | 55 | 90 | 110/132 | 250/280 | 280 |
| Main motor series | 6/8p | |||||
| Ring die diameter (mm) | 320 | 350 | 420 | 520 | 768 | 858 |
| Finished pellet diameter (mm) | 6-12 | |||||
(Note: RICHI Machinery’s products are always updated and improved. If you have any requirements, please feel free to contact us.)
Advantages Of The Wood Granulator Machine
To deliver efficient, intelligent, and reliable biomass pelletizing solutions, RICHI wood granulator has maintained industry leadership through its exceptional manufacturing standards, advanced structural design, and stable performance, making it the preferred choice for global customers. Whether in agricultural waste recycling or renewable energy development, we provide optimal pelletizing equipment solutions.
Wide Application & Raw Material Adaptability
This machine is compatible with various biomass materials such as wood chips, sawdust, rice husks, straw, and bamboo chips. It plays a vital role in agricultural waste recycling, forestry resource utilization, and biomass energy production.
Durable Structure & Premium Components
Built with high-strength materials and enhanced by heat-treated ring dies and rollers, the machine ensures long-term, stable performance. Equipped with SKF bearings, Siemens motors, and stainless steel conditioning systems, it delivers exceptional reliability and durability
Energy-Saving & High Efficiency
Through optimized motor-to-chamber power matching and multi-stage roller compression, the machine achieves up to 20% more output with the same power input. The variable-frequency feeding system maintains stable load operation and boosts pellet quality.
Modular Design & Flexible Integration
The equipment supports modular configuration, enabling standalone operation or seamless integration into complete production lines. Whether your project is small-scale or large industrial, RICHI ensures the ideal system layout.
Intelligent Operation & Easy Maintenance
The user-friendly control panel, automatic lubrication system, and overload protection ensure safe, smooth operation and minimal maintenance. Operators can easily manage the equipment with lower labor intensity.
Exceptional Value & Customization Support
While delivering world-class quality, RICHI provides cost-effective solutions tailored to customer needs—from single machines to fully customized pellet production lines
120+ /countries and regions
As the world’s first-class manufacturer and supplier of wood pellet equipment, RICHI MACHINERY Co., LTD. has been exported to 127 countries and regions, and then has won unanimous praise from customers.
1,000+ /PROJECTS
We have more than 1000 projects around the world and have accumulated rich experience in the construction of wood granulator machine. And these projects are located in Europe, Africa, Asia, North America, South America, and Oceania.
2-3T/H
- Project country ：Canada
- Application project：2-3T/H Full automatic wood pellet line
- Project output：2-3T/H
- Raw material： 50% moisture wood chips , 50% moisture sawdust
- Finished product size： 6-12mm
- Equipment for the project ：Wood crusher, shifter, dryer, storage bin, wood granulator, cooler, shifter , auto-packing
- Project background： Canada has abundant forest resources and a large-scale wood processing industry. Every year, it generates a large amount of wood waste. The traditional methods of landfilling or incineration not only lead to waste of resources but also fail to meet the requirements of environmental protection and sustainable development. To efficiently utilize forestry waste, respond to the green development policy, and fill the market fuel gap, this client plans to build a 2 – 3T/H fully automatic wood chip pellet production line, converting waste into pellet fuel.
1T/H
- Project country ：Indonesia
- Application project：1T/H Wood pellet production line
- Project output：1T/H
- Raw material: Wood chips
- Finished product size: 8mm
- Equipment for the project: Dryer, wood granulator machine, cooler, screening, automatic packaging
- Project background： Indonesia is rich in forestry resources. During the sawmill and furniture manufacturing processes, a large amount of wood waste by-products are generated. However, these raw materials are often not fully utilized and even directly discarded, which not only leads to resource waste but also causes certain environmental problems. This client invested in the construction of a 1-ton-per-hour wood pellet production line, mainly producing 8mm high-quality wood pellets for local household heating and small industrial boilers. This not only opened up new profit channels for the client but also promoted sustainable resource utilization in the local area.
2.5T/H
- Project country ：Mexico
- Application project：2.5T/H Wood pellet production line
- Project output：2.5T/H
- Raw material: Wood chips
- Finished product size: 8-10mm
- Equipment for the project: Dryer, wood chip pellet machine, cooler, screening, automatic packaging
- Project background：In recent years, Mexico has actively developed the biomass energy industry to promote sustainable development and reduce carbon emissions. This client is a local wood processing enterprise that has long produced a large amount of sawmill by-products – wood chips. In the past, these wood chips were either discarded or used for low-value applications, resulting in considerable waste of resources.To improve resource utilization and explore new profit growth points, the client decided to invest in building a 2.5-ton-per-hour wood chip pellet production line. After evaluating several suppliers, they chose RICHI. This project uses wood chips as the main raw material to produce high-quality wood chip pellets of 8-10mm, which not only meets the local heating market demand but also caters to export sales.
10T/H
- Project country ：America
- Application project：10T/H Complete wood pellet plant
- Project output：10T/H
- Raw material: Wood chips
- Finished product size: 6-12mm
- Equipment for the project: Wood crusher, shifter, dryer, wood granulator, cooler, screening, automatic packaging
- Project background：This client is a large American wood processing enterprise. During the production process in the sawmill, a large amount of wood chips are generated. Although some by-products are internally utilized, a considerable portion remains in a low-value or idle state, presenting a huge potential for profit.In order to convert these abundant raw materials into high-value, environmentally friendly products, the client decided to invest in the construction of a complete wood chip pellet production line with a capacity of 10 tons per hour. This production line can produce high-quality pellets of different specifications ranging from 6 to 12 mm. It can not only meet the local market demand in the United States but also comply with the strict standards of overseas customers.
How to Choose the Right wood granulator machine?
Choosing the right model is key to ensuring project success. Let RICHI help you design customized pellet plant solutions based on your raw materials, production capacity targets, and budget.
Whether the whole production line is equipped
Each machine provided by RICHI Machinery can operate independently. If you just want to directly process raw materials into chips, purchasing one wood granulator machine is sufficient. As long as the raw materials meet the feeding requirements of our machine, our equipment can operate efficiently.
For applications involving material crushing, cutting or drying, we offer complementary equipment such as crushers, chippers and dryers. These devices can also be purchased separately for flexible use.
Capacity Needs
For family or small-scale applications, it is recommended to choose MZLH320 or MZLH350（0.3-0.7T/H）.
For medium and large-scale projects, it is recommended to choose MZLH520, MZLH768, and MZLH858 (2-4.5T/H).
Budget and requirements
Customers with limited budgets or raw materials meeting pelletizing requirements can opt for a single machine or a compact pellet production line to meet daily needs.
Those with ample budgets or higher demands may configure an automated wood pellet production line, achieving intelligent and unmanned management from raw material intake to finished product dispatch.
Frequently Asked Questions
Customized solutions can help different customers meet their unique business needs, improve efficiency, and reduce costs.
All of RICHI’s wood granulators are custom designed.
What kind of raw materials can the wood granulator machine process?
It is compatible with various biomass materials including sawdust, wood chips, bark, bamboo chips, rice husks, palm shells, and corn stalks. As long as the raw materials meet pelletization requirements (3-5mm powder size, 12%-18% moisture content), they can be processed using our equipment. Additionally, we provide customized crushing and drying systems based on material moisture levels and pellet sizes to achieve optimal pellet formation
How do I choose the right machine model?
Yes, of course. We have a whole professional team to meet your requirement and serve the best production. Whether you’re building a small-scale unit or a large industrial plant we can all tailor the most suitable equipment size, texture and configuration for you. Just let us know some basic information. When selecting a model, we need to comprehensively consider your processing capacity requirements, raw material types, and budget. Depending on the production line scale and budget, RICHI offers various models ranging from 0.3T/H to 4.0T/H. We recommend providing detailed requirements so we can recommend the most suitable model and supporting solutions for you.
Is it necessary to dry the raw materials before pelletizing?
Yes, the moisture content of raw materials directly impacts pellet formation efficiency. It is generally recommended to maintain moisture levels between 12%-18%. Excessive moisture can cause pellets to become loose and weak during granulation, potentially preventing proper molding. Therefore, drying treatment is essential. When necessary, the RICHI drum dryer can be used as a complementary solution to ensure stable compaction and high pellet formation rates.
What pellet sizes can be produced with this pellet machine?
Our wood granulator machine supports production of various specifications of wood pellets, with the standard model typically producing 6-12mm pellets. For home heating applications, 6-8mm pellets are commonly used, while industrial boilers and power plants prefer pellets exceeding 10mm in diameter. Featuring a modular ring die design, this equipment allows users to replace dies with different hole sizes as needed, enabling a single machine to accommodate multiple diameter specifications.
Is the installation complicated? Does RICHI provide installation support?
The RICHI equipment features a modular design, with this innovative architecture significantly simplifying installation procedures and making equipment transportation and setup effortless. To ensure users can efficiently complete installations correctly, we provide comprehensive installation guides and instructional videos. Our remote technical support team stands ready to address any issues encountered during the installation process, ensuring every customer enjoys worry-free installation experience.
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WHY CHOOSE US?
Selecting the right equipment suppliers is key to achieving stable production and long-term profitability. As an industry-leading manufacturer, RICHI MACHINERY combines decades of experience, advanced technology, and a global service network to deliver equipment that meets customer needs and customizes production lines. The following three core advantages will demonstrate why thousands of global clients choose to partner with us.
Strict quality standards and rich experience
With over 20 years of experience in wood granulator machine manufacturing, we have served thousands of customers worldwide across more than 120 countries and regions.
Our reputation stems from strict international quality standards, with all products certified by ISO, CE, SGS and other international certifications, ensuring stable performance and reliable quality.
Customized feed pellet production scheme
We customize wood pellet production solutions for each customer, with advanced technology and professional design services, covering the whole process support from manufacturing, delivery to installation and training.
Each solution aims to help customers achieve efficient, intelligent and sustainable production.
Comprehensive after-sales service guarantees long-term operation
Our commitment extends beyond equipment supply to include rapid response after-sales services covering everything from initial consultation to long-term maintenance.
We are dedicated to building lasting partnerships rooted in responsibility and trust. Contact us now for customized solutions and quotations that will elevate your production to new heights.
