RISUPETO
RISUPETO IS AN ENERGY WOOD HARVESTER
Risupeto is a harvester head, a tree shear and a forest clearing device. A energy wood harvester to put it briefly. Risupeto is easy to use and durable. It's purpose is to produce non limbed energy wood efficiently. Risupeto makes the job faster in comparison to more traditional work methods.
Risupeto handels jobs from tending of a seedling stand to first thinning. It is most productive on sites that have been neglected and left uncleared. Risupeto does the clearing mechanically in connection with energy logging. There is no need for clearing the undergrowth unlike with a harvester. Dependig on the site, a lumberjack can leave up to 20 00 kg's of energy mass to the site making a forwarder drivers job more difficult and moving in the forest harder. When done with Risupeto, all the energy wood is claimed and put to use.
MECHANICAL SPECIFICATIONS
Risupeto cuts the trees with disc blades and moves them to
intermediate storage compartment quickly and continuously meaning that you dont
have to handle the trunks individually. Risupeto collects trees up from 1 to
30cm in diameter. The collected bundle of trunks is unloaded by simply rotating
the blades on the opposite direction. The disc blades crushes the tree stumps
which should prevent sprouting due to faster drying of the stump. Any soil
between the blades does not harm them as it easily would with saw chains. The
machines blades and collecting device rotate slow compared to traditional
crushers or saw chain devices which means that there is no risk of catapulting
stones towards bystanders. Working width is one meter and because of that
working in tight spaces is no problem.
Risupeto is attached to an excavator or a harvester with an land construction boom or such. Risupeto also requires a bucket rotator. Risupeto is not recommended to be used with a harvester boom because lack of efficiency.
TECHNICAL INFORMATION
Excavator
requirements
- Recommended excavator size 16 - 20 t
- Hydraulic hammer line 2-way
Hydraulics
- Operation pressure 340 - 400 bar
- Oilfolw capacity recommendation 150 - 200 l/min
Hydraulic connectors
- Picker rollers 1'' rotating connectors
- Drain line 3/4'' secured quick connectors
- Locking line 3/8" secured quick connectors
Size
- Width 970 mm
- Height 2000 mm
- Weight 1290 kg (with options)
Danger zone 30 m
Requires a bucket rotator
OPTIONS
Bundle control latches
- Closes the cargo space hydraulically in addition with the rubber flaps
Hydraulic extension
- Extra reach 600 mm
Risupeto Edition track support beams for excavator
- More durability and weight
DEVELOPMENT
Risupeto was built to enhance energy wood harvesting. We also wanted to put our excavator to work outside land construction season.
The very first Risupeto was built during 2017 and 2018. Another prototype was made in 2020-2021. Both prototypes are still in use. A series of three first production versions were then made before the current model.
RESEARCH RESULTS
Juha Laitila & Kari Väätäinen (2021) Productivity and cost of harvesting overgrowth brushwood from roadsides and field edges, International Journal of Forest Engineering. Read here.
Juha Laitila & Kari Väätäinen (2022) The productivity and cost of harvesting whole trees from early thinnings with a felling head designed for continuous cutting and accumulation, International Journal of Forest Engineerin. Read here.