Harvester head EC 561 LF

The Eco Log 561 LF is a high-production all-round harvester head, designed to handle the various tasks within forestry efficiently – everything from thinning low-grade timber to basic final felling.

The low-friction concept (LF) ensures maximum productivity, durability and profitability thanks to the fact that it minimizes friction, wear, and maintenance requirements.

The harvester head’s compact dimensions, combined with perfect delimbing down to 30 mm, allow the thinning of low-grade timber to be carried out quickly and efficiently with the highest quality. Three smart patents – LogHold, proportionally angled feed rollers and Eco Log Saw Control – produce a harvester head boasting impressive stem holding, strength and maximum production.

980 kg

WEIGHT

12 - 43 cm

Optimum tree size (DBH) for highest productivity

600 mm

Cutting diameter

23-28MPa

Recommended working pressure

Tech information

Feeding

Proportional roller clamping pressure in relation to stem diameter, as well as individual setting by tree species for optimum performance.

Roller motors

Max. roller opening

Feed rate

Feed force

Proportional pressures

514 or 560 cc

500 mm

514 cc = 6,0 m/s
560 cc = 5,5 m/s

22 kN/24kN

Yes

Cutting

SuperCut 100 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

Chain speed

Saw motor

Saw unit

Saw Control

600 mm

40 m/s

Bucher 20 cc

Automatic – SuperCut 100

Yes

Delimbing

Proportional delimbing knife pressure in relation to stem diameter for minimum friction and maximum production. Individual setting of upper/lower knife/knives and by tree species for optimum performance.

Floating knives

Fixed knives

Delimbing diameter tip-tip

Min. limb diameter

Proportional pressures

Log Hold

Separate knife control

5 incl. top knife

1

430mm

30 mm

Yes

Yes

Yes

Weight and dimensions

With its compact dimensions and very low weight in relation to its high capacity, the EC 561 LF is ideal for a variety of felling operations

Width closed

Width open

Height

Weight

900 mm

1500 mm

1500 mm

980 kg

Recommendations

Base machines: The EC 561 LF is ideal for installation on Eco Log’s harvesters 560, 580 & 688.

Felling: Proportional roller clamping pressure in relation to stem diameter, as well as individual setting by tree species for optimum performance.

Optimum tree size (DBH) for highest productivity* 12 – 43 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.

Eco Log Saw Control

Maximizes productivity in every cut

All of Eco Log´s harvester heads have been equipped with Eco Log Saw Control, a patented system that ensures a maximum performance from both machine and harvester head in every cut. The system continuously adapts the guide bar feed, and as a result each cut is optimized irrespective of tree species, stem diameter, chain sharpness or how much power the machine is providing.

A link between the machine and the harvester head ensures that every cut is performed with as high efficiency as possible, where the system continuously optimizes the values regarding to external conditions without the operator needing to change any basic settings manually. It makes no difference if the harvester head is used in mixed forest, in final felling or if you process a spruce with your first cut immediately followed by a birch. Eco Log Saw Control ensures that your felling is fast, smooth and efficient at all times.

 

Eco Log Saw Control

 

  • The harvester head continuously adapts to current conditions and delivers guide bar pressure and guide bar feed irrespective of tree species.
  • Links the saw and machine for optimal performance and efficiency from both harvester head and harvester.
  • Minimizing the risk of cutting cracks and generates time savings and efficiency thanks to high cutting speed.