2017 International Forest Industries Magazines October November 2017 | Page 46

SP Maskiner was founded in 1978
and presented the world´s first ever
single grip harvester head in 1980.
“We have the longest experience of
all in the field of development and
manufacture of harvester heads
for the forestry professional,” the
manufacturer says.
Last year and for what has
passed in 2017 has been a
busy period for the SP product
development team. A new
productive, reliable and versatile
harvester head, the SP 661 LF,
has been designed and presented
at Elmia in June. The SP 661 LF is
currently being tested in various
harvesting operations around the
world and is planned for official
sales release in early 2018.
Another major development
also presented was the FDM
system. FDM (Floating Diameter
Measuring) is a patent-pending
innovation, designed to ensure
high-precision diameter measuring
at during full production, high-
speed feeding.
SP 461 LF
The SP 461 LF is designed for
first and second thinning jobs
but is also capable of handling
larger tree sizes. Due to carriers
getting larger and stronger, and
measuring accuracies becoming
more and more important in
thinning applications, the SP 461 LF
underwent a major update in 2015.
During 2016, further refinement
of details was made that resulted
in a substantial increase in
reliability and uptime and an even
lower carrier fuel consumption than
before.
SP 561 LF
The SP 561 LF is an all-round
harvester head that is used for
both thinning and light clear-fell
operations. In order to be able to
meet the demands of larger and
stronger carriers, the SP 561 LF
underwent a major update in 2015,
resulting in a more robust and
heavy-duty product.
During 2016, a further detailed
refinement of the product has
taken place with optimization
of hose routing, covers and
component placement resulting in
a substantial increase in uptime
and reliability.
SP 591 LX G3
The SP 591 LX is purpose built for
debarking of difficult and crooked
eucalyptus and acacia. Since the
launch in 2007, it has earned a very
good reputation on various global
markets for its simple and robust
design in combination with its high
production.
The latest version is called G3
and was released in 2016. The
SP 591 LX G3 offers two different
frame designs (‘A’ and ‘E’) in
order to optimize the performance
depending on tree species and
operation characteristics.
The A frame is optimized for
superior handling of crooked and
difficult tree species such as acacia
and Australian blue gum while the
E frame is optimized for eucalyptus
species with straighter tree form.
The G3 version offers an
increase in uptime and reliability
thanks to a redesigned measuring
device using a very rugged and
reliable type of non-contact
encoder. Also contributing to
the increase in uptime is the
further refined house routing and
component placement.
friction and maximum productivity.
The SP 661 LF is designed to be
able to offer highest productivity
in both small and large diameter
harvesting. In large diameter
harvesting, the proportional-angled
feed rollers in combination with
SP’s patented knife control system
LogHold, ensures an impressive
capacity and productivity.
When harvesting smaller
diameter trees, the compact and
agile design is a great asset.
Equipped with the optional
multi-tree handling equipment,
the SP 661 LF is able to reach high
productivity when harvesting very
SP 661 LF officially goes on sale
early 2018, orders are already
being placed by dealers and
customers worldwide.
SP 761 LF
The SP 761 LF is a compact and
heavy-duty harvester head
designed to handle a variety of
different demanding applications.
The SP 761 LF was released four
years ago and has been extremely
well received all around the globe.
It is a very versatile head that
through a large offering of options
can be built to perfectly suit both
cut-to-length, road side processing
The SP 661 LF officially
goes on sale early 2018
The SP 661 LF is able to
reach high productivity
when harvesting very
small tree dimensions
SP 661 LF
As mentioned, the SP 661 LF
is the latest design from SP. It
is a compact and strong high-
performance harvester head
designed according to SP’s low-
friction (LF) principle for minimum
The SP 661 LF is designed to be able to offer highest productivity in both
small and large diameter harvesting
44 International Forest Industries | OCTOBER / NOVEMBER 2017
small tree dimensions.
The comprehensively protected
and robust design in combination
with state-of-the-art hose routing
ensures high reliability and
uptime regardless of tree size and
harvesting condition. Though the
or debarking eucalyptus
operations. During 2016, the SP
761 LF was further refined, which
has led to an increase in uptime
and reliability.