- Working principle
- Production efficiency
- Applicable materials
- Energy consumption and cost
- Pellet quality
Working principle
- The flat die wood pellet machine adopts the principle of flat pressing, which means that the gap between the matrix and rollers is relatively small. Through the relative rotation of the rollers, the material is compressed to form a pellet shape through the matrix.
- The ring die wood pellet machine utilizes the relative rotation between the ring mold and the pressure roller to feed the material into the hole of the ring mold. Through compression and shearing, the material is compressed into pellets
Production efficiency
- Flat die wood pellet machine, due to the small gap between the matrix and rollers and the limited adjustable range of compression ratio, its production efficiency is relatively low. So flat die is more suitable for small-scale production or household production.
- Ring die wood pellet machine, the design of the ring mold allows it to handle more materials and has a larger compression ratio, resulting in relatively high production efficiency. In the scenario of mass production of pellet fuel, the ring mold pellet machine is more suitable.
Applicable materials
- The flat die wood pellet machine is more suitable for processing wood materials such as sawdust, chips, and straw.
- The ring mill wood pellet machine can handle various materials, such as wood chips, straw, rice husks, bark, etc., and has a wider range of applicability.
Energy consumption and cost
- Flat die wood pellet machine: Due to its relatively simple structure and smooth operation, it has low energy consumption, relatively easy maintenance and upkeep, and relatively low cost. Generally, regular inspection and replacement of worn parts are sufficient.
- Due to its complex structure, the ring die wood pellet machine consumes relatively high energy during operation, making maintenance and upkeep relatively difficult and costly. It is necessary to regularly check the wear of key components such as the ring mold and pressure roller, and make corresponding adjustments and replacements.
Pellet quality
- The smoothness of the pellets produced by the flat die wood pellet machine is good, but due to the limited adjustable range of its compression ratio, the density and hardness of the pellets may not be as good as those produced by the ring die ones.
- The density and hardness of the pellets produced by the wood pellet mill are relatively high, but the smoothness may be slightly inferior to that of the pellets produced by the flat mill.
In summary, there are significant differences between flat die wood pellet machines and ring die wood pellet machines in terms of working principles, production efficiency, applicable scenarios, pellet quality, energy consumption and cost, as well as equipment maintenance and upkeep. These differences give each device its own advantages in application, and choosing which device requires comprehensive consideration based on specific production needs, material characteristics, and economic costs.
