Rongda MachineryVertical Ring Die Pellet Mill
Integrated high-efficiency discharge with low failure rates. The culmination of 20 years of precision engineering for global biomass standards.
Core Advantages
Core Advantages
Drive System Advantages
Gear blanks undergo water forging followed by normalizing heat treatment to increase tooth surface hardness, with carburizing treatment to enhance wear resistance, extending service life and ensuring quieter, more stable operation.
Bearing System
Uses high-quality silent bearings with added thin oil circulation cooling and lubrication system, extending bearing service life and improving operational safety.
Pressure Roller Adjustment
Automatically adjusts pressure angle to prevent material clumping and machine jamming, ensuring stable pellet formation.
Easy Operation
High automation level with minimal labor requirements, only 3 people needed, supporting manual feeding or conveyor feeding.
Wide Application Range
Can process various materials such as wood chips, sawdust, straw, rice husk, peanut shells, etc.
Efficient Production
Can produce a large amount of pellet fuel per hour with high production efficiency and low failure rate.
Product Gallery
Product Gallery
6 Key Advantages
Drive Structure
Gears with increased modulus, four-stage transmission, low noise, high stability
Pressure Roller
Self-developed locknut-free closed pressure roller, reduces oil consumption and extends roller life
Motor
Motor installed vertically parallel to the main shaft, strong output power, high efficiency conversion
Outer Casing
Cast gearbox casing with good rigidity, heat dissipation, and stability
Reducer
Uses enclosed industrial gear oil with circulation system for heat dissipation and bearing protection
Stainless Steel Ring Die
Wear-resistant and stable, large discharge area, increased output
Multi-Material Application
Suitable for materials with low adhesion and difficult shaping characteristics across multiple industries.
Technical Specifications
Equipment Parameters
| Model No. | Power (kW) | Lubrication | Pellet Spec | Capacity (t/h) |
|---|---|---|---|---|
| RD-560LX | 90 - 132 | Auto Pump + Air Cool | Ø6-12mm | 1.5 - 2.0 |
| RD-700LX | 160 - 200 | Auto Pump + Air Cool | Ø6-12mm | 2.5 - 3.5 |
| RD-850LX | 220 - 250 | Auto Pump + Air Cool | Ø6-12mm | 4.0 - 5.5 |
Advantage Comparison
Advantage Comparison
Vertical Pellet Machine vs Flat Die Pellet Machine
Vertical Pellet Machine
- check_circle Die stationary, pressure roller rotating, vertical feeding, more direct and smooth feeding
- check_circle Vertical structure, ring die, more conducive to heat dissipation and cooling
- check_circle Double-layer die design, can be used for multiple purposes or dual purposes with one die
- check_circle Adopts independent discharge system, does not affect pellet production
Flat Die Pellet Machine
- cancel Die rotating, pressure roller stationary, vertical feeding, direct feeding
- cancel Flat die structure, relatively closed pressing chamber, poor heat dissipation
- cancel Only single-piece design can be used
- cancel Uses main power to stir discharge, high-speed stir can damage finished pellets
Vertical Pellet Machine vs Horizontal Pellet Machine
Vertical Pellet Machine
- check_circle Smooth and direct feeding, stable discharge, suitable for large-scale production
- check_circle Gearbox specially designed for difficult-to-press biomass materials
- check_circle High and stable output, good pellet quality, suitable for large-scale production
Horizontal Pellet Machine
- check_circle Pressure roller stationary, die rotating, side feeding design, simple structure
- check_circle Compact feeding system design, small footprint, suitable for limited space
- check_circle Gearbox structure mature and reliable, low maintenance cost
- check_circle Compact structure, low energy consumption, suitable for small workshops
Roller Die Long Service Life
ROLLER DIE LIFE LONG
RD series pellet machines: The "pressure roller" is made of high-alloy wear-resistant material, with options for stainless steel and bearing steel materials. The "die" is available in two material options: alloy steel and stainless steel. It features unique design, reasonable structure, energy reduction, high efficiency, and long service life. It is a finalized product carefully developed by our company, reaching international advanced levels.
Ring Die Series
Ring Die Series
18mm Biomass (Waste Treatment) Large Hole Die
The compression ratio of the pellet machine ring die is determined based on the raw materials. Different raw materials have different compression ratios - the harder the raw material, the smaller the compression ratio; the more fluffy the raw material, the larger the compression ratio.
6.0mm-12.0mm Biomass Fertilizer Pellet Machine Die
Fertilizer formulas mainly consist of inorganic fertilizers, organic fertilizers, minerals, etc. Inorganic fertilizers in compound fertilizers, such as urea, are corrosive to ring dies, and ring die holes and inner cone holes are severely worn by minerals. Therefore, stainless steel 4Cr13 is suitable for ring die materials. Compound fertilizer ring die apertures are generally larger, ranging from 3.0-6.0mm, and due to the high friction coefficient, it is difficult to exit the holes.
6.0mm-12.0mm Wood Pellet Ring Die
The die aperture range for wood pellet materials is between 5.0-18.0mm, and the length-to-aperture ratio or compression ratio is between 1:4-1:10. The compression ratio of wood pellet machine ring dies is determined based on the raw materials. Different raw materials have different compression ratios - the harder the raw material, the smaller the compression ratio; the more fluffy the raw material, the larger the compression ratio. That is, the more fluffy the raw material, the easier it is to form, and the more fluffy the raw material contains more fiber, and materials with more fiber are easier to form.
6.0mm-12.0mm Organic Fertilizer Pellet Ring Die
Rongda Machinery customizes ring die production processes according to different requirements for pellets, production efficiency, and service life, meeting customer requirements. We have developed unique composite hardening processes that increase feed production efficiency by 10-20%, reduce powder rate, and extend ring die service life by 30-100%, receiving praise from customers.
Pressure Roller Series
Pressure Roller Series
Honeycomb Pressure Roller
The honeycomb pressure roller has a unique honeycomb structure on its surface, with excellent material grabbing capability, suitable for processing various biomass materials. Made of high-quality GR15 material through special heat treatment processes, it has a wear-resistant surface and uniform hardness. When used with Hanpai ring dies, it can significantly improve production efficiency and extend equipment service life. The process is precise, with quenched area hardness of HRC58-HRC63, and finished products undergo strict quality inspection.
Smooth Surface Pressure Roller
The smooth surface pressure roller has a smooth and flat surface, suitable for processing materials with low humidity, effectively reducing material adhesion and improving pellet quality. Made of high-quality 40CR material through precision processing and heat treatment processes, it has uniform hardness and excellent wear resistance. When used with Hanpai ring dies, it runs stably with low noise, suitable for pelletizing scenarios with high requirements for pellet appearance.
Through Groove Pressure Roller
The through groove pressure roller has through-hole teeth on its surface, which can better extrude and form materials during pelletizing. Suitable for processing various biomass materials, such as straw, sawdust, rice husk, etc. Made of high-quality 40CR material through hobbing, carbonitriding and other processes, it has quenched area hardness of HRC58-HRC63 and excellent wear resistance. When used with Hanpai ring dies, it is suitable for pelletizing scenarios with relatively moderate requirements for pellet shape and density.
Company Information
Company Information
Liyang Rongda Machinery Co., Ltd.
Patents
Certifications
Our Team
R&D Team
Responsible for product development and innovation, continuously improving product performance and technical level.
Technical Exchange
Promote global technical exchange and cooperation, expand international markets.
Laboratory
Conduct strict product testing to ensure product quality and performance.
Facilities and Equipment
Frequently Asked Questions
FAQ