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.
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.
- Recommended excavator size 16 - 20 t
- Hydraulic hammer line 2-way
- Operation pressure 340 - 400 bar
- Oilfolw capacity recommendation 150 - 200 l/min
- Picker rollers 1'' rotating connectors
- Drain line 3/4'' secured quick connectors
- Locking line 3/8" secured quick connectors
- Width 970 mm
- Height 2000 mm
- Weight 1290 kg (with options)
Danger zone 30 m
Requires a bucket rotator
Bundle control latches
- Closes the cargo space hydraulically in addition with the rubber flaps
- Extra reach 600 mm
Risupeto Edition track support beams for excavator
- More durability and weight
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.
Prototype 1 has been run mainly with a New Holland E200SR excavator and its reach is 10 m. Prototype 1 weights approximately 900- 1300 kg depending on the options. Prototype 1 is not very nice to look at because it shows all the steps of development.
Prototype 1 has since been given tech from a another prototype to upgrade the efficiency even more and it is still in daily use.
Prototype 2 was built during 2020-2021 with the help of European Regional Development Fund. The goal was to make a lighter and more streamlined version based on the first prototype.
Prototype 2 proved to be even more efficient than the first version and it was easier to maintain. The weight didn't actually drop much because we didn't want to make that a priority at the expense of durability and functionality.
Production version has the best features combined from both prototypes and is now ready to tackle the uncared forests.
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.