Shredder for green area maintenance

Woodchipper or Bio-Shredder?

The management of pruning waste is a crucial aspect in the maintenance of parks and green areas. This waste includes branches, leaves, grass, and other plant materials that result from trimming and maintaining trees, shrubs, flowers and grass.
After pruning and cutting the plant material, decisions must be made about the use of the material. In practice, most waste is transported to a site for final disposal or perhaps to a treatment for recovery. Shredding converts bulky materials into smaller, more manageable fragments, reducing their volume up 6 times. This process not only makes it easier to transport and handle but also offers multiple environmental and economic benefits.

Green Waste Shredding

Shredding pruning and general green waste involve the use of shredders, also known as Woodchippers or Bio-Shredder which reduce the particle size and volume of organic materials through knives, flails or combined systems. The shredded material that can be used for various applications.

Advantages of Shredding

1. Volume Reduction: Shredding significantly reduces the volume of waste, making it easier to transport, store and other uses.
2. Mulch Production: The shredded material can be used as mulch for gardens and green areas, helping to conserve soil moisture and control weeds.
3. Composting: Shredded material is ideal for composting, as its smaller size accelerates the decomposition process.
4. Energy Use: In some cases, shredded waste can be used in biomass plants to generate energy or for biogas production.

Shredding Systems

Woodchipper

• Disc Chipper: Uses a rotating disc with blades to cut wooden debris into fine chips.
  • Main Application: Ideal for shredding branches and small trunks. The chips produced are commonly used as fuel for heating or in the manufacture of pellets.
• Rotor or Drum Chipper: Uses a rotating drum with blades to shred larger materials.
  • Main Application: Suitable for the forestry and agricultural industry, where it is required to process logs of larger diameter to produce biomass and homogeneous chips.

Bio-shredder

• Bio-shredder with Oscillating Flail Rotor: It uses oscillating flails to shred organic waste and small branches.
  • Main Application: Efficient for shredding small branches, leaves and other organic waste, ideal to produce compost and other organic products.
• Bio-shredders with Combined Rotor of Oscillating Flails and Knifes: They combine the action of oscillating flails with blades for more efficient shredding of branches and green waste.
  • Main Application: Allows fast and uniform shredding of logs, branches and green waste, suitable to produce high-quality compost and other organic products.

Feed systems

Manually fed woodchippers and bio-shredders generally have different feed hopper systems. Smaller units use gravity feed with an inclined hopper, while professional units have a horizontal feed hopper combined with toothed feed roller(s).

The hopper size is usually wider for bio-shredders due to the volume of input material.

Summary

In conclusion, Woodchippers are mainly used in pruning waste management and in the forestry industry to reduce the volume of wood.
Bio-shredders are applicable in green waste and wood produced in green area maintenance.
Volume reduction is facilitating its transport and subsequent use, whether as compost, mulch, biomass or in the manufacture of pellets.
Bio-shredders equipped with combined rotors using flails and knives offer the widest application for green area maintenance , shredding most green waste, from wood to grass. Even difficult fibrous materials such as palm fronds and the like can be processed with these systems.