For
thinning, selective logging and other applications, cut-to-length machines are
the right choice for the job. Below is a review of the wide variety of equipment
you’ll find on the market today.
Valmet
Valmet offers three wheeled cut-to-length machines, the 901.3, 911.3 and the
941. All three utilize the MaxiHarvester control and information system. In the
field the driver can input machine, crane and head settings as well as accessing
pricelists and crosscutting instructions. The
system
also controls the harvesters transmission systems. The Valmet 901.3, ideal for
thinning operations, weighs approximately 31,041 lbs. and is powered by a Sisu
Diesel 66 EWA6-cylinder engine. With a minimum width of 104.3”, operators can
maintain narrow forest pathways with low-impact. Valmet’s 330.1 dangle head is
standard. This head has an 18.8” cutting diameter with a feed force of 3.484.5
lbf. Operators also have the option of using the Valmet 945.1 head with a
cutting diameter at 21.6”. The cab and crane are mounted on a slew ring that
tilts in all directions allowing the operator to sit level throughout the day.
The 911.3 is Valmet’s mid-sized wheeled cut-to-length harvester, weighing 37,258
lbs and with a width of 108.3 – 114.2. The 911.3 is powered by a SISU Diesel 74
EWA6-cylinder turbo diesel with intercooler. Three heads are available — the
Valmet 360.1, 960, and 945 offering operators cutting diameters ranging from
21.7” to 25.6” and feed forces from 4,452 lbf. to 5,822 lbf. Valmet’s 941 is the
largest single-grip wheeled harvester in the world says the company, featuring a
minimum width of 117.7 and powered by a 277 hp SisuDiesel 84 ETA, Fortius
6-cylinder turbo diesel engine and equipped with the Valment 370.1 head. The 941
also utilizes a new crane, the CRH24. Designed to handle heavy timber, this
crane is mounted in line with the cab allowing superior visibility of the head
and is maneuverable and easy to operate.
www.komatsuforest.ca
Timberjack
Timberjack’s 770D, 1070D and 1270D wheeled cut-tolength machines share the new
Timbermatic 300 centralized digital control and communication system. The
onboard
PC/Windows™
2000 based system controls the harvester head and timber measurement. A Total
Machine Control System (TMC) controls the engine transmission and boom
functions. The Timberjack 770D wheeled harvester is designed for thinning and
harvesting small-diameter wood. Equipped with John Deere JD4045 HTJ77
turbocharged diesel engine and the Timberjack 742 harvester head the 770D works
well on steep slopes and level ground. The 1070D is designed for thinning and
regeneration harvesting. It easily handles small trees, but can also harvest all
but the largest diameter trees. It’s equipped with a John Deere 6068H, charge
air cooled, turbocharged isolationmounted, 6-cylinder diesel engine rated at 173
SAE gross hp @ 2,000 rpm. Travel speed in high gear reaches 15.5 mph and 3.1 mph
in low gear. Harvesting head options include the Timberjack 745 and 752.
Timberjack’s 1270 wheeled harvester is ideal for late thinning and regeneration
harvesting. It features a JD 6081H, charge air cooled, turbocharged, isolation –
mounted diesel rated at 215 SAE gross hp @1,400-2,000 rpm with same travels
speeds as the 1070D. It has a reach of 30’6”, a 9’ minimum width and is 24’ in
length. www.timberjack.com
Ponsse
Ponsse offers three wheeled cut-to-length machines — the Ergo, Beaver and
Buffalo Dual. All share similar design with the operator’s cab and arm assembly
on separate bogies. And they also feature Ponsse’s Opti4G Information System.
This Windows PC
based
program handles all machine functions and also takes trunk measurements to help
the operator increase productivity. Cut-to-Length Update The largest, the
Buffalo Dual, also operates as a forwarder. The crane arm is mounted on a long
bogie and the trailer’s arms and forward screen are removable. The bogie’s axels
operate independently to adapt to rough terrain. It features a Mercedes-Benz OM
906 LA engine rated at 241hp, and has a maximum travel speed of 17 mph in 2nd
gear. The 40 gallon fuel tank, and an extra optional fuel tank afford a broad
travel range. The Ponsse H53 harvesting head comes standard. This head handles
20” stems and is equipped with a 25” saw bar. Feed speed is 0-13 ft/s with a
feed force of 4,050 lbf. The Ergo operates equally well in thinning or felling
operations. With a choice of the H53, H60 or H60e cut-tolength heads operators
can cut small stems or trunks as large as 27”. The Mercedez-Benz OM 906 LA
engine is rated at 250 hp and meets EUROMOT & EPA2 emissions standards. The
106-gallon fuel tank teams with the efficient engine for a long-run time. The
cab has also been completely redesigned to provide more space and better working
visibility. The Beaver, is ideally suited for thinning work, but easily handles
all three of the Ponsse heads. Powered by the Mercedez- Benz OM 904 LA engine
rated at 170 hp, the machine reaches 15.5 mph.
www.ponsse.com
Rottne
The Rottne 5005 single-grip harvester is a compact, efficient machine for both
thinning and final felling. A John Deere 6066 HF 275 6-cylinder water-cooled
turbo engine powers the 5005. The transmission is fully hydrostatic with two
variable pressure-steered pumps. It provides traction at 28,100 lbf. and reaches
a travel speed of 12 mph. It’s equipped with the EGS 550 harvesting head. This
pendulum suspended head has a saw diameter of 22” and a feeding force of 4,100
lbf. Measuring and monitoring
are
controlled by the Rottne D4 Micro-computer system. Information on this PC based
system can be saved via disk, modem or portable computer. The Rottne 2004
wheeled harvester is suited for thinning. With a narrow footprint and leveling
feature, it maintains a low profile, even in rocky and hilly terrain. It’s
equipped with a John Deere 4045 TF 250 4-cylinder engine and a fully hydrostatic
transmission and the EGS 400 head comes standard. This head has an 18” saw
diameter and a 2,860 lbf. feeding force. The measuring and control system is the
DSP 4000 PC based microcomputer. The Rottne SMV Rapid EGS single-grip harvester
is equipped with a strong loader and stable chassis making it a good choice for
final felling situations. It’s powered by a John Deere 6066 TF 250 6-cylinder
engine and the power transmission delivers 28,100 lbf tractive force. Travel
speeds reach 4.7 mph in first gear and 15.5 mph in second gear. The EGS 602 head
is standard on this machine. It is pendulum mounted with stem clasping knives.
Saw diameter is 24” with a feeding force of 5,330 lbf. And it features the
System System 90 computerized measuring and control system. The Rottne H20 is
their large clear-felling harvester. It easily handles large trees and rough
terrain. The John Deere 6081 HF 070, 6-cylinder engine powers the H20. This
machine comes with the EGS 700 harvester head. Maximum cutting diameter is 750
mm and feed force is 27kN.
www.blondininc.com
Tigercat Tigercat’s
H09 harvester offers excellent handling for instand selective thinning. It’s
minimum 83” width gives it maneuverability in tight spaces and the 22,000 lb.
weight allows the machine to tread lightly. The H09 is powered by an Iveco NEF 6
Commonrail 6-cylinder diesel engine rated at 180 hp and 1,300 to 1,700 rpm. Top
speed is 15 mph and fuel capacity is 48 gallons. Standard crane is the Mowi EGS
900 with an option for the Mowi EGS 900L. The machine is equipped with a Logmax
3000 harvesting head and the DASA 4 measurement system.
www.tigercat.com.
Timberking
The TK856, Timberking’s six-wheeled, cut-to-length harvester, incorporates
proven components from Timberking forwarders, rubber-tired feller bunchers and
track
harvesters.
The TK856 features a 200-horsepower CAT 3126 DITATier II engine and Sauer
Sundstrand hydrostatic drive with Funk two-speed drop box. The 27’ “V” bottom
squirt boom and front-entry cab swing together, allowing the operator to face
the working zone at all times. The auto leveling mechanism tilts 17 degrees
forward, 15 degrees to each side and 3 degrees backward to give the operator
more comfort and better visibility on steep terrain A heavy-duty oscillation
mechanism allows the front and back to pivot independently. Travel speed is 12
miles per hour. Total weight of the TK856 with the head is 47,000 lbs. The
machine comes standard with the Fabtek FT180 dangle processor head with a 22”
cut. With its 3-pillar tower design, this head can take the stresses of hardwood
processing on a daily basis. The Timberking TK856 is sold exclusively at
Caterpillar forestry dealers. For more information visit
www.cat.com.
system
also controls the harvesters transmission systems. The Valmet 901.3, ideal for
thinning operations, weighs approximately 31,041 lbs. and is powered by a Sisu
Diesel 66 EWA6-cylinder engine. With a minimum width of 104.3”, operators can
maintain narrow forest pathways with low-impact. Valmet’s 330.1 dangle head is
standard. This head has an 18.8” cutting diameter with a feed force of 3.484.5
lbf. Operators also have the option of using the Valmet 945.1 head with a
cutting diameter at 21.6”. The cab and crane are mounted on a slew ring that
tilts in all directions allowing the operator to sit level throughout the day.
The 911.3 is Valmet’s mid-sized wheeled cut-to-length harvester, weighing 37,258
lbs and with a width of 108.3 – 114.2. The 911.3 is powered by a SISU Diesel 74
EWA6-cylinder turbo diesel with intercooler. Three heads are available — the
Valmet 360.1, 960, and 945 offering operators cutting diameters ranging from
21.7” to 25.6” and feed forces from 4,452 lbf. to 5,822 lbf. Valmet’s 941 is the
largest single-grip wheeled harvester in the world says the company, featuring a
minimum width of 117.7 and powered by a 277 hp SisuDiesel 84 ETA, Fortius
6-cylinder turbo diesel engine and equipped with the Valment 370.1 head. The 941
also utilizes a new crane, the CRH24. Designed to handle heavy timber, this
crane is mounted in line with the cab allowing superior visibility of the head
and is maneuverable and easy to operate. 
PC/Windows™
2000 based system controls the harvester head and timber measurement. A Total
Machine Control System (TMC) controls the engine transmission and boom
functions. The Timberjack 770D wheeled harvester is designed for thinning and
harvesting small-diameter wood. Equipped with John Deere JD4045 HTJ77
turbocharged diesel engine and the Timberjack 742 harvester head the 770D works
well on steep slopes and level ground. The 1070D is designed for thinning and
regeneration harvesting. It easily handles small trees, but can also harvest all
but the largest diameter trees. It’s equipped with a John Deere 6068H, charge
air cooled, turbocharged isolationmounted, 6-cylinder diesel engine rated at 173
SAE gross hp @ 2,000 rpm. Travel speed in high gear reaches 15.5 mph and 3.1 mph
in low gear. Harvesting head options include the Timberjack 745 and 752.
Timberjack’s 1270 wheeled harvester is ideal for late thinning and regeneration
harvesting. It features a JD 6081H, charge air cooled, turbocharged, isolation –
mounted diesel rated at 215 SAE gross hp @1,400-2,000 rpm with same travels
speeds as the 1070D. It has a reach of 30’6”, a 9’ minimum width and is 24’ in
length. 
based
program handles all machine functions and also takes trunk measurements to help
the operator increase productivity. Cut-to-Length Update The largest, the
Buffalo Dual, also operates as a forwarder. The crane arm is mounted on a long
bogie and the trailer’s arms and forward screen are removable. The bogie’s axels
operate independently to adapt to rough terrain. It features a Mercedes-Benz OM
906 LA engine rated at 241hp, and has a maximum travel speed of 17 mph in 2nd
gear. The 40 gallon fuel tank, and an extra optional fuel tank afford a broad
travel range. The Ponsse H53 harvesting head comes standard. This head handles
20” stems and is equipped with a 25” saw bar. Feed speed is 0-13 ft/s with a
feed force of 4,050 lbf. The Ergo operates equally well in thinning or felling
operations. With a choice of the H53, H60 or H60e cut-tolength heads operators
can cut small stems or trunks as large as 27”. The Mercedez-Benz OM 906 LA
engine is rated at 250 hp and meets EUROMOT & EPA2 emissions standards. The
106-gallon fuel tank teams with the efficient engine for a long-run time. The
cab has also been completely redesigned to provide more space and better working
visibility. The Beaver, is ideally suited for thinning work, but easily handles
all three of the Ponsse heads. Powered by the Mercedez- Benz OM 904 LA engine
rated at 170 hp, the machine reaches 15.5 mph. 
are
controlled by the Rottne D4 Micro-computer system. Information on this PC based
system can be saved via disk, modem or portable computer. The Rottne 2004
wheeled harvester is suited for thinning. With a narrow footprint and leveling
feature, it maintains a low profile, even in rocky and hilly terrain. It’s
equipped with a John Deere 4045 TF 250 4-cylinder engine and a fully hydrostatic
transmission and the EGS 400 head comes standard. This head has an 18” saw
diameter and a 2,860 lbf. feeding force. The measuring and control system is the
DSP 4000 PC based microcomputer. The Rottne SMV Rapid EGS single-grip harvester
is equipped with a strong loader and stable chassis making it a good choice for
final felling situations. It’s powered by a John Deere 6066 TF 250 6-cylinder
engine and the power transmission delivers 28,100 lbf tractive force. Travel
speeds reach 4.7 mph in first gear and 15.5 mph in second gear. The EGS 602 head
is standard on this machine. It is pendulum mounted with stem clasping knives.
Saw diameter is 24” with a feeding force of 5,330 lbf. And it features the
System System 90 computerized measuring and control system. The Rottne H20 is
their large clear-felling harvester. It easily handles large trees and rough
terrain. The John Deere 6081 HF 070, 6-cylinder engine powers the H20. This
machine comes with the EGS 700 harvester head. Maximum cutting diameter is 750
mm and feed force is 27kN. 
Tigercat’s
H09 harvester offers excellent handling for instand selective thinning. It’s
minimum 83” width gives it maneuverability in tight spaces and the 22,000 lb.
weight allows the machine to tread lightly. The H09 is powered by an Iveco NEF 6
Commonrail 6-cylinder diesel engine rated at 180 hp and 1,300 to 1,700 rpm. Top
speed is 15 mph and fuel capacity is 48 gallons. Standard crane is the Mowi EGS
900 with an option for the Mowi EGS 900L. The machine is equipped with a Logmax
3000 harvesting head and the DASA 4 measurement system.
harvesters.
The TK856 features a 200-horsepower CAT 3126 DITATier II engine and Sauer
Sundstrand hydrostatic drive with Funk two-speed drop box. The 27’ “V” bottom
squirt boom and front-entry cab swing together, allowing the operator to face
the working zone at all times. The auto leveling mechanism tilts 17 degrees
forward, 15 degrees to each side and 3 degrees backward to give the operator
more comfort and better visibility on steep terrain A heavy-duty oscillation
mechanism allows the front and back to pivot independently. Travel speed is 12
miles per hour. Total weight of the TK856 with the head is 47,000 lbs. The
machine comes standard with the Fabtek FT180 dangle processor head with a 22”
cut. With its 3-pillar tower design, this head can take the stresses of hardwood
processing on a daily basis. The Timberking TK856 is sold exclusively at
Caterpillar forestry dealers. For more information visit
