FARMI S250R

A stroke harvester with mechanic feeding rollers for tractors and 8-15 ton excavators

Features
•Felling and delimbing
•Easy installation, no additional hydraulics
•Effortless and durable guillotine cutting, 25 cm
•Adjustable grip force of the delimbing blades
•Four delimbing speeds and forces
•Radio control option

Suitable for
•First thinning
•Firewood timber
•Energy wood harvesting
•Integrated harvesting

Feeding rollers double the delimbing speed

The delimbing speed of S250R has been doubled compared to the traditional model. This is possible with the help of mechanical, cable-driven feeding rollers. When the stroke cylinder feeds the stem one metre, the rollers feed it two metres – this means three metres with one stroke! The solution is a good example of the innovative, patented FARMI technology.

FARMI stroke harvesters ensure that the first thinning is completed productively and without damaging the forest. Forest owners like the low stumps and narrow harvesting tracks. The model has four available delimbing speeds and forces: two speeds with the rollers unlocked and two speeds with the rollers locked. The maximum delimbing force is over 30 kN.

In a test conducted by TTS (Work efficiency institute) the timber cutting productivity per effective hour that was achieved with FARMI RS250 stroke harvester (current model marking: FARMI S250R) was 5.2m3 in the first thinning of a pine-dominated forest when the average volume of the stems was 92 dm3. In combined pulpwood and energy wood harvesting, the productivity was 5.5 m3 per effective hour when the average volume of the stems was 62 dm3.

An effortless and durable guillotine solution

A patented guillotine with a 25 cm cutting diameter is used for cutting. When cutting, grippers close around the tree and an 8 mm blade made of wear-resistant steel cuts through the tree. The cutting surface is smooth and even because the trees are always cut against the grippers. The guillotine slides along a sliding bar and puts no strain on the other structures of the stroke harvester regardless of the thickness of the cut trees.

The blade is not easily damaged or lose its sharpness, which means that the trees can be cut very close to the ground. Low stumps do not damage the tyres of the tractor and no valuable wood is left in the forest. The maintenance of FARMI stroke harvesters mainly consists of greasing the joints.

•Radio control with various control options
•Extension boom for 5-8 ton excavators, 1m reach.
•Cejn Flat face quick connectors
•Baltrotors rotators
•Links for the rotator
•Spare part packages ◦The basic wear and tear part package includes rubber dampers, seal kits, valve connectors, two feeding roller cables
◦The comprehensive kit includes the same as the basic kit as well as two valves and a hose set.