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EC 661 LF

The Eco Log 661 LF is a high-performance harvester head that offers the highest levels of quality, strength, and productivity in all types of final felling. In large-diameter final felling, the proportionally angled feed rollers, in combination with the patented LogHold system and Eco Log Saw Control, deliver the highest capacity and production. In final felling of low-grade timber, the versatile design comes into its own and ensures high levels of efficiency and rapid feeding.

 

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The low friction concept (LF), combined with extremely well-protected, smart hose routing, paves the way for minimum friction, the least possible downtime, maximum uptime, and maximum productivity. In addition, the harvester head’s variable roller motors generate an optimum balance between strength and speed in both low-grade and large-diameter stands.

The Eco Log 661 LF meets every challenge – flexibly, robustly, and efficiently.

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Feeding
Proportional roller clamping pressure in relation to stem diameter, as well as individual setting by tree species for optimum performance.
Roller motors  750 cc
Roller motors, variable  613-920 cc
Max. roller opening  630 mm
Feed rate  5 m/s / 4,1-6,1 m/s
Feed force  28 kN/34 kN
Proportional pressures  Yes
Cutting
SuperCut 150 is an extremely powerful unit with integrated chain lubrication and hydraulic tensioning of the chain. In combination with Eco Log Saw Control, the cutting time is optimized and the risk of cutting cracks is minimized.
Cutting diameter, standard   700 mm
Cutting diameter, option EC saw box  810 mm
Chain speed  40 m/s
Saw motor  Bucher 32 cc
Saw unit  Automatic - SuperCut 150
Saw Control  Yes
Delimbing
Delimbing knives with proportional pressure. Individual setting by tree species for optimum performance.
Floating knives  4
Fixed knives  1
Delimbing diameter tip-tip  480 mm
Delimbing diameter, incl. lower knife  510 mm
Min. limb diameter  30 mm
Proportional pressures  Yes
Log Hold  Yes
Weight and dimensions
Despite its capacity to handle large-diameter trees, the EC 661 LF’s compact dimensions mean that it is suitable for more than just large-diameter final felling.
Width closed  1360 mm
Width open  1820 mm
Height, excl. tilt frame  1730 mm
Weight, excl. rotator  1480 kg
Weight with top saw, excl. rotator  1595 kg
Recommendations
Base machines: The Eco Log 661 LF is ideal for installation on Eco Log’s harvesters 580 & 590.
Felling: Proportional roller clamping pressure in relation to stem diameter, as well as individual setting by tree species for optimum performance.
Recommended stem diameter (BHD) for maximum productivity*  16-51 cm

*Breast height diameter, measured 1.3 m up the stem.

We reserve the right to make changes to specifications and versions. The harvester heads depicted may have some additional equipment. All specified dimensions/ values are approximate and refer to standard equipment.