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April 2006 - The
Logging and Sawmilling Journal
TECH UPDATE EDITOR: DIANE METTLER
Caterpillar offers six- and eight-wheel drive forwarders
equipped with 174 hp Cat 3056E engines and supported
through Caterpillar’s international dealer network. The
forwarders feature a torque-converted, power-shift Funk DF
150 transmission, four-speed electronic shift and an IQAN
computer control system for setting control parameters.
The forwarders are constructed with heavy frames, purposebuilt
blades with wear resistant front cutting edge, large engine
side covers for excellent service access and adjustable log bunks
with floating cam stakes. Full 40-degree articulation and 250-
degree loader rotation provide high maneuverability and work
range. The rack and pinion four-cylinder loader swing system
features fully proportional controls with high torque and high
swing speed. Load capacity ranges from 30,000 to 32,000 lbs.
The cabs are said to provide excellent visibility.
Fabtek manufactures a full line of forwarders including four-,
six- and eight-wheel drive units. With load capacities ranging
from 16,000 to 32,000 lbs, the forwarders feature electric
power shift transmissions, full load, high reach booms and full
40-degree turning articulation. The rack and pinion four-cylinder
loader swing system features fully proportional controls with
high torque and high swing speed. A rear mount loader is standard
on all models.
The boom geometry is designed for maximum utility and the
top-mounted stick boom cylinders stay clear of obstructions.
Fabtek forwarders feature large, high visibility cabs, hydraulic tilt
for complete under cab system access, heavy steel plate engine
and radiator coverings and vibration isolated attachment points. An options package is available on the new tree-length clam
bunk forwarder to convert back to a regular forwarder bunk
The Franklin/Treefarmer line of forwarders consists of fourand
six-wheel drive, rubber-tired frame articulated vehicles,
available with front axles or centre section oscillation in most
models. These units are designed to forward timber from the
felling site to the loading area, by means of loading/unloading
the timber on the tail bunk with a roof-mounted or post-mounted
The current product line offers several powershift and
hydrostatic models, varying in size, tail section length and horsepower,
to meet the changing demands of today’s loggers. All the
forwarders are powered by Cummins engines and feature
Franklin four-speed powershift transmissions. Weights range
from 10,136 kg to 16,692 kg and overall reaches range from
23.75’ to 24.75’.
John Deere offers a
variety of forwarders,
from the 810D right up
to the 1710D.
The 810D is said to be ideal for dense thinning areas. The
eight-wheel configuration has a tight turning radius. With bogie
tracks on the optional wide rear tires and the boom secured
over the front, rear ground pressure is low, even with a fully
loaded bunk. Boom and bunk length options are available.
The 1110D offers loggers the highest level of automation
and on-board diagnostics with the Total Machine Control (TMC)
system. It is easy to operate, offers low maintenance and is
available in six- and eight-wheel versions. Options include three
boom configurations and two wood bunk lengths, and it’s
equipped with a 161-hp engine and has a 24,250-lb load rating.
The 1710D is said to be suited for large-scale, fully mechanized
operations and large loads over long distances or difficult
terrain. A choice of two deck lengths and boom options enable
loggers to match the machine to wood size and mill specifications.
It is powered by the John Deere 215-hp 6081H turbocharged
8.1 L engine with a controlled power bulge.
The six F-series forwarders from Logset offer the right
machine for everything from initial thinning to the heaviest final
felling, according to the company. All Logset forwarders are
equipped with low-emission engines (Sisu or Perkins), hydrostatic
transmissions and NAF power trains.
The 14,200-kpg 4F forwarder has a load capacity of 10,000
kg. It’s designed for thinnings, yet has power and capacity for
final felling. It’s equipped with a fuel-efficient, four-cylinder
intercooled Sisu engine with 2,200 rpm.
The Logset 5F is based on the same reliable technology as
the 4F, but is equipped with bigger bogies, bigger wheels and a higher tractive force.
The 5F Premium model is equipped with a
six-cylinder diesel engine instead of the four-cylinder for the 5F.
They weigh in at 14,500 kg and have 11,000 kg load capacity.
The 6F is a 14-tonne forest machine with a large load bunk,
fast crane and well-designed operation, making it an ideal
machine for continuous, heavy-duty work.
The 15-tonne F8 handles even the longest haul distances
and the steepest terrain with ease. The machine is designed for
final fellings and has a strong frame and an engine that boasts
The new 18-tonne 10F is the biggest and most powerful
member of the series, with an 18,000 kg capacity for the long
hauls. The flexible load bay can be widened by an extra 60 cm.
The length of the load bay can be hydraulically extended
by 70 cm.
All Ponsse forwarder models have the power required to
cope with extremely varied conditions and even the most difficult
terrain, says the company. The favourable ratio between net
weight and load carrying capacity, the smallest turning radius for
their size class, according to the company, as well as proportions
that distribute the weight evenly over all tires make these forwarders
The Buffalo King is Ponsse’s largest, followed by the Buffalo,
Elk, Wisent and Gazelle.
The Buffalo King can carry nearly its own weight in wood.
The 18-tonne Buffalo King offers its operator a luxurious cab,
the powerful Ponsse K100 loader, ample load space, an efficient
and powerful Mercedes-Benz engine and a sturdy structure
ready for the most demanding harvesting conditions.
The Buffalo is 9,395 to 11,250 mm in length and 2,670 to
2,960 mm wide. It can carry 14,000 kg, with a load space
length of 4,240 to 6,100 mm and has a 7.9 mm reach.
The Elk forwarder has a carrying capacity of 13 tonnes. It’s
designed for extremely challenging terrain. The Elk is 9,120 to
9,725 mm (+700 mm adjustable extension) in length and 2,670
to 2,970 mm wide (depending on tires).
The Wisent is 9,050 mm in length, can carry 12,000 kg and
has a load length of 4,500 mm. And the Gazelle has the same
reach as the Buffalo and Wisent, but is lighter, at 11,900 kg,
and with a carrying capacity of 10,000 kg.
The Rottne SMV Rapid is a six-or eight-wheel drive forwarder
rated at 16-tonne capacity. It has a John Deere 6068
Tier II compliant engine rated at 200 hp. The loader is a Rottne
RK-90 equipped with a Hultdins Supergrip 360S grapple. The
hydrostat and working hydraulics are completely separate systems,
each with their own reservoir. The control system is a 24-
volt IQAN control system. The large cab is equipped with an air
suspension heated seat.
The Rottne Solid F14 is a six- or eight-wheel drive forwarder
rated at 14-tonne capacity. It has a John Deere 6068 Tier II
compliant engine rated at 163 hp. The loader is a Rottne RK-80
equipped with a Hultdins Supergrip 360S grapple. The large
cab is equipped with an air suspension heated seat.
The Rottne Solid F9-6 is an eight-wheel drive forwarder
rated at nine-tonne capacity, built mainly for thinning applications.
It features a John Deere 4045 Tier II compliant engine
rated at 140 hp. The loader is a Rottne RK-62 equipped with a
Hultdins Supergrip 260S grapple.
Tigercat builds three forwarders for extreme duty applications.
They offer tough construction, excellent cooling capacity
and great stability when traveling and loading.
The 1055 forwarder is designed with a strong frame, large
pins and steer cylinders and a durable centre section with
tapered roller bearings in the articulation and oscillation joints. It’s powered by a 201-hp (150 kW) Mercedes 906 Tier II
engine. Electronic canbus control technology governs machine
functions and the extra large cab with extended windows offers
improved visibility when unloading.
The 1055 is equipped with 14-tonne rated bogie axles and
all control valves are located in a single compartment accessible
at ground level. And the operator has easy access to engine and
hydraulic components through tilting engine enclosure and tilt
The more powerful 1065 is designed for maximum stability
and has many of the same features as the 1055, but is powered
by a 228-hp (170 kW) Mercedes 906 Tier II engine and
equipped with 18-tonne rated bogie axles. Like the 1055,
wagon options can be configured for 4.8 m lengths or double
bunk 3 m logs.
Designed for the tough final fell applications in extreme terrain,
the 50,370-lb 1075 is equipped with a 241-hp (180 kW)
Mercedes 906 Tier II engine and 20-tonne rated bogie axles.
TimberPro has recently
been working on a totally
new design for its wheeled
forestry equipment. The
goals were to have complete
visibility to the boom side of
the cab with the engine
mounted in the rear, a larger,
quieter and more comfortable
cab, gull wing access for maintenance and repair and
new booms with more lift capacity with the stick cylinder
mounted on top for less possibility of damage.
This all had to be done on a rotating platform with a radius
of no more than 62” to retain the no tail swing feature. This has
all been accomplished on the forwarder, feller buncher and
both the clambunk and grapple skidders, which all use the same
rotating upper platform along with engine options from 250 to
300 hp. And the two-tone colour options—red, blue or green—have made the machine appealing as well.
Powered by a
400-hp Cummins QSM
electronic engine, the
Trans-Gesco TG88 has a
25-ton payload capacity
and a wood basket
designed to maximize
payload for various log
lengths up to 35’. The
heavy-duty frame and robust loader is controlled by state-ofthe-art load sense hydraulics and is available with an optional
live heel for long length. The proven 100 per cent hydrostatic
traction and steering assist offers superior maneuvrability, and a
huge 160,000 lbs of tractive effort and a wide choice of track
up to 60” wide for extremely low ground pressure. The TG88 is
also available with a clambunk forwarder or grapple skidder
Komatsu Forest’s new Valmet 840.3, 860.3 and 890.3 series
ergonomic and technical advances push productivity even farther. Powered by fuel-efficient Tier III Sisu diesel engines, these
big machines move timber even faster.
The six- or eight-wheel drive, 16-ton capacity Valmet 860.3
machines are maneuverable all-around performers with a sixcylinder,
190-hp engine and 590 ft-lb (800 Nm) torque at 1,500
rpm. They feature the CRF 10 boom with longer 25.6’ (7.8 m)
reach and 28,544 ft-lb swing torque.
The 20-ton, 890.3 are powered by a 230-hp engine, with
738 ft-lb. (1,000 Nm) torque at 1,500 rpm. These eight-wheel
drive machines feature a strong, sturdy CRF 14 boom—no other forwarder reaches farther, according to the company.
Inside, the new “dot-three” series machines have more cab
comfort, better visibility, and improved convenience, making
longer, more productive work shifts less stressful. The cab is
redesigned with attention down to the smallest detail. Frequently used buttons are placed more accessibly. Lower
panel profiles improve operator sightlines in all directions. Cab
windows feature integrated sunshades. The easy-to-use
MaxiForwarder system simplifies operation and maximizes operator
The machines feature Valmet’s exclusive ProTec, completely
protected hose passage between the boom tip and grapple.
New braking technology effectively dampens grapple swing.
It also has a specially designed rotator. ProTec likely increases
operator productivity by more than 10 per cent while reducing
snag hose breaks by 20 per cent. Valmet equipment gets to and
from the landing fast. Its unique articulated design provides
excellent stability and allows for tight and safe turns.