GN Roy
Two circular saw head models are available from GN Roy, the 2456-B
and
the 2252-C. The 2456-B has a greater cut depth of 24” through a 40”
opening, a greater holding capacity of 5.06 square feet and 280 degree
tilt (with planetary gear). The planetary gear is built with a holding
bearing that is completely separate from the planetary and supports the
head’s weight. With an operating pressure of 2,800 lbs, the 6,400-lb
head has a saw blade 56” in diameter. The 2252-C offers great access to
the saw motor, easy access to arms, accumulator cylinders and the
hydraulic system, a 22” cut depth and a holding capacity of 4.28 square
feet. The clamp design makes classification of wood easier, the company
says. Seals are made of polymyte and are resistant to heat, cold and
high pressure. Reader Service Card #164
Hahn Machinery
The Hahn HSG140 and HSG160 undergo continuous product improvement,
including a new encoderless length measuring system with sealed sensors,
a new diameter measuring system, stronger frames, new controls and other
improvements that make the heads more productive and reliable. The HGS
series of single-grip harvester heads are readily adaptable to most
small excavators or rubber-tired machines in the 18,000- to 25,000-lb
range, or 65- to 85-hp range. The economical, full-featured harvester
heads are available in both new and rebuilt models.
www.hahnmachinery.com
Reader Service Card #165.
Hultdins
Hultdins’ versatile, continuous rotation SuperFell 851 can fell, pile,
crosscut, trim, top, load and shovel. Mounted on a shovel logger,
excavator or feller buncher, the high-capacity, 3,410-lb directional
felling head is capable of felling trees up to 35” in diameter in a
single cut and is ideal for large diameter timber, selective cutting of
valuable species, salvaging blow-down and clearing rights-of-way. The
SuperFell 851 offers high-gripping force grapple arms, a hydraulic
snubber for side-to-side control, cushioned cylinders and the patented
Hultdins SuperCut 300 saw unit with 11H 3/4” pitch saw chain. Automatic
chain tensioning is standard. Designed for maximum hose protection, the
unique upper boom link system simplifies mounting. With a rotator rated
at 101,165 lbf, the SuperFell 851 is able to withstand loads in any
direction and requires a 53- to 58-gpm (200 to 220 l/min) oil flow.
www.hultdins.com Reader
Service Card #166
Kesla Oy/Foresteri/Patu
Kesla builds the Foresteri and Patu product lines and manufactures 10
different models of harvester heads, including eight roller heads and
two stroke heads. The roller heads include the 30RH, the 30RHS, the
25RH, the 22RH, the 20RH Foresteri models and the Patu 355RH, 405RH and
505RH. With cut diameters ranging from 16” to 25”, the heads offer
delimbing speeds of 3.8 to 4.8 mps and maximum knife openings ranging
from 17” to 28”. The machines weigh between 880 and 3,400 lbs. The five
Foresteri models offer one fixed and four mobile knives, while the Patu
355RH has one fixed and three mobile knives. The two stroke heads
include the 1,060-lb Patu 410SH and the 1,760-lb 560SH, with sawing
diameters of 18” and 26” respectively and strong double jaws for a firm
but gentle grip on the stem. Both machines feature one fixed and two
mobile knives. The heads are controlled by push buttons on the crane
control levers. Other features include an automatic saw limiter,
automatic or manual feed and standard length and diameter measuring
devices. www.kesla.com Reader
Service Card #167
Keto/Hakmet
Keto offers 12 models of harvester heads, including the 525TS Supreme,
the 800TS Supreme, the 800PHD Supreme and the 1000TS Supreme. The heads
have many recent updates including a central track shaft, easy-lock
track frame and main frame pins, better valve access, large oil tanks
and updated tracks. Keto harvesting heads also feature improved saw case
and top saw mounting, larger knife and track cylinder pins, better
service access to valves and hoses, as well as guarding updates. The new
track system features non-weldedlinks, larger centre axle/bushings for
pivoting, and steel or plastic wear pads. Keto’s dual track length
measuring system is standard. The heads offer a track feed with a firm
but gentle grip for low fibre damage, while the tracks come with a
4,000-hour warranty. The standard Hakmet computer system makes and
updates log forecasts before and during feeding, increasing the value of
the wood produced. The Hakmet IT computer system is optional.
www.hakmet.com Reader Service
Card #168
Lako Oy/Premio
The seven models in the Premio line are suitable for first commercial thinning
to large scale forest operations and can be attached to almost any carrier
including excavator, purpose- built or modified forest machine. The 850 Premio
has been designed for harvesting and processing large decked stems and requires
a minimum carrier size of 25 tons. Designed for clear felling and tree length
operations, the 950 Premio is the largest of the line and requires a 30-ton
excavator. The smaller machines, the 450 Premio, 550 Premio, 650 Premio and 750
Premio require carriers in the 10- to 30-ton range. The machines have cutting
capacities from 21" to 38". From the 650 Premio up, the heads can be equipped
with a high-cutting capacity top saw, for superior processing and delimbing of
crooked stems. Modifiable Premio heads can be constructed as fourwheel- driven
when the rear knives are replaced with an additional pair of feed rollers.
Four-wheel drive provides more efficiency in feeding, delimbing heavily branched
stems or debarking eucalyptus. The measuring and control systems and software
use the latest technology to increase the heads’ productivity. All hydraulic
flow from the carrier to the head can be set and adjusted by computer. Other
features include accurate measurement, modular construction, four-wire Motomit,
Epec or Mevio PC systems, low impact ECO-wheels and versatile scaling features.
www.lako.fi Reader Service Card # 169
Log Max
Pro-Max, a service provider for Log Max harvester/processors, presents
its Log Mate IT computer system with four wires and the latest
slice-by-slice technology. Soon to be introduced is the new 1200 HD,
designed for big wood applications. The 1200 HD is built to outperform
the largest harvester/processors on the market, the company says, with
all the benefits of Log Max, including low flow requirement, stronger
frame design, proven rubber wheels, lighter weight and hefty pulling
force for the ultimate coastal and hardwood processor. Pro-Max offers
four models of Log Max harvesting heads with patented positioning,
controlled by the upper knife sensor, to minimize friction losses and
maximize pulling force. The feed wheel motors’ variable displacement
increase delimbing and pulling power as required, while four moveable
cast steel delimbing knives, with extra wide cutting surfaces, handle
thick limbs. The 9000 is a 3,995-lb head with a cutting diameter of 27”
and a feed force of 8,787 lbs, while the 7000 weighs 3,595 lbs and has a
cutting capacity of 25”. The 1,881-lb 5000 has a cutting diameter of
22”, while the smallest head in the series, the 1,155-lb 3000, has a
cutting diameter of 20”. www.logmax.com
Reader Service Card #170
Partek Forest/Valmet
Partek Forest offers nine proven harvesting and processing heads,
i
ncluding the three latest heavy-duty models. The new 380, 385 and 395
heads are manufactured in North America and are proportioned to handle
large diameter trees and heavy, tough-limbed stands, the company says.
The new heads can be matched to any carrier type and feature an
easy-to-use computer measuring and machine control system. Operators
adjust the controls to suit their operating preferences and perform
trouble-shooting functions from the cab. Valmet heads offer features
that minimize operating costs and allow loggers to maximize the value
from each stem, the company says. Some of those features include
superior clamping and delimbing capabilities, fast working speed,
component-coordinated design and advanced machine controls. The Valmet lineup includes the Scandinavian-built 945, 960, 965, 360 and 370 heads
that are capable of performing all types of harvesting from early
thinning to final felling.
www.partekforest.com Reader Service Card #171
Pierce Pacific Manufacturing Inc
The PTH 20, Pierce Pacific’s 20” tree harvester, comes standard with a
high-speed .404” topping saw and the Pierce MK2 full-scale measuring
system. The 3/4” pitch butt saw and 9,800lbs of pulling force produce
quality, accurate logs with ease, the company says. The PTH 24 is the
largest tree harvester from Pierce Pacific and is capable of processing
24” trees. With a maximum delimbing capacity of 30”, a maximum cutting
capacity of 32” with the 3/4” pitch butt saw and 20” with the .404” top
saw—standard on all Pierce tree harvesters—the PTH 24 also features the
Pierce MK2 measuring system that ensures high quality, accurate logs.
With 360-degrees of continuous rotation, a maximum cutting capacity of
38” and a 3/4” 11BC 43” saw bar, the PFG 630 directional falling grapple
offers completely enclosed hoses through its centre link and a heavy
duty hanging bracket with a 60,000-lb rotate bearing.
www.piercepacific.com
Reader Service Card #172
Ponsse
Ponsse harvesting heads offer reliability, efficiency, easy servicing
and accurate measurements. The H60 is a mid-size head that handles stems
to 25.6” in diameter and can be fitted with two to four
hydraulically-operated delimbing knives and one stationary knife, while
the H60e has three to five hydraulically operated delimbing knives and
one stationary. The H60 heads feature the Ponsse Opti 4G measuring and
control system. With a maximum cutting diameter of 28” and a feed force
of 26 kN, the H73 is designed for heavy, large-dimensioned trees. With
one stationary and four hydraulically movable knives, the 2,310-lb head
has a feed speed of zero to 13 feet per second. The front knives are
specially designed and positioned for delimbing down to a small top
diameter, while the rear knives delimb heavy limbs all the way from the
butt end. The three-point grip provides accurate diameter measurement
and the feed rollers’ hydraulic connection guarantees a non-slip grip,
extending the service life of the feed motors. Steel claw and steel
plate rollers are available. The H53 is a multi-purpose head for smaller
trees up to 22” in diameter.
www.ponsse.com Reader Service Card #173
Quadco
Quadco’s three harvester/processor heads include the 22” to 24” capacity
5600, the 24” capacity 6000 and the 30” capacity 7500. Top saws are
standard on all models and the main saw can be a disc or bar and chain.
The 7500 has two-speed motors for high torque in heavy delimbing and
high speed in lighter conditions. A unique processor mount yoke provides
attachment control for decking and the head can pivot seven degrees
side-to-side to reduce fibre damage. The 6000 and 7500 feature modular
construction with three boom mounts, three butt saws and two feed roll
types to choose from. An independent hydraulically controlled
length-measuring wheel and in-cylinder diameter reading achieve accurate
log measuring. The self-adjusting, proportional-pressure soft clamp
system, based on tree diameter, minimizes friction and maximizes feed
speed, the company says. Other features include a twin-motor rotator
with a 100,000-lb capacity sealed bearing, a harvester-style tilt frame
with 3 1/2” cushioned cylinders and standard bottom delimbing arms. The
5600 can handle stems up to 22” with the standard slide-out disc and up
to 24” with the optional swing-out disc (called the 5660), borrowed from
the 6000 model. Its frame structure and delimbing arms are built to
handle heavy limbs and hardwoods. The accumulator arms, solid mount and
measuring wheel are designed for multi-stemming, improving operations in
small diameter timber stands, as well as for roadside processing.
www.quadco.com Reader Service
Card #174
Risley Equipment
Risley Equipment offers its high speed and “V saw” series heads. Four
high-speed models use a patented belt drive and are offered with bracket
tilt capacities up to 45 degrees per side. The 2:1 reduction drive
multiplier system provides power and fast blade recovery, the company
says. The “V saw” series is comprised of the V1923B and the V2229B
high-speed intermittent saws, based on the Rotosaw intermittent design
with the addition of new intelligent hydraulics for a fast, clean cut.
The saws are available with 24” and 29” cut capacities and come with 45
degree per side tilt brackets. The Rolly II single-grip harvester is
available with a bar saw or Rotosaw cutting bottom with a 24” capacity.
Measuring is supplied by a DASA measuring system combined with airbag
loaded trail wheel for increased accuracy. Options allow configurations
to suit specific applications. The Cobra and Sidewinder processors
feature a Hultdins bar saw top and bottom for fast precise cuts. Coupled
with a DASA measuring system and standard spiked drive feed rolls or
rubber chain back rolls for fast, accurate processing, the Cobra and
Sidewinder processors are available with controlled mounting bracket
assemblies with 290 degrees of rotation and full float capability for
accurate long log processing.
www.gorisley.com Reader Service Card #175
Tigercat
The new 5700 felling saw from Tigercat Industries Inc is available for
drive-to-tree and track feller bunchers. The single-post saw head
features an asymmetrical butt plate and horn design that enables it to
centre and control large diameter trees and bunch smaller stems in
parallel alignment. Built for extreme duty and offering a cutting
capacity of 23”, the 5700 has arm pivot pins that are 2.5” in diameter
with threaded ends. The Tigercat-built cylinders are cushioned at both
ends for extended life. The Tigercat 5400 felling saw head for track
feller bunchers is also a single-post felling saw with asymmetrical
geometry and an offset pocket, resulting in better stem alignment in
small diameter wood and versatility for varying timber sizes. Twin grab
arms offer improved collecting, sorting and control of large trees,
while the single accumulating arm provides increased bunching
efficiency. Three wrist options match the 5400 saw to a variety of
harvesting applications. With a 21.5” cut capacity, the 5400 is designed
and constructed for long life with large diameter pins and bushings,
cushioned cylinders and annular ball bearings. Tigercat’s 650 harvesting
head for wheeled and tracked harvesters offers efficient hydraulics for
optimal fuel efficiency and a cut capacity of 26”. The DASA computer
system provides tight measuring tolerances and excellent control. Angled
rollers provide improved feed force and reduced friction on the knives
and rollers. www.tigercat.com
Reader Service Card #176
Waratah
Waratah’s HTH hydraulic tree harvesters handle all types of
harvesting
applications and are available in the 600, 400 and 200 series. The 600
series heads have either a .404” SuperCut saw unit—featuring automatic
chain tensioning with an electric pulse oiler for greater bar and chain
life—or a durable 3/4” pitch 11H chain on the larger heads. The standard
topping saw allows clean processing of forked trees, broken tops and
defect for highest fibre yield. A saw home detector stops feed rollers
during cutting and the bar saver indicator light allows the operator to
know where the saw is when the saw bar is out of sight. The heads
feature the Waratah’s Logrite and T10 measuring and control systems. The
HTH 624 Super fells to 24” and processes large and heavy decked wood to
29”. The HTH 626 Bigwood fells trees up to 26” and processes decked wood
up to 34”, while the HTH 616 is effective in wood up to 16” with a
maximum cutting capacity of 20”.
The HTH 620 and HTH 620 Warrior process
decked wood up to 23” or small clear fell to 20”, while the HTH 622
Warrior was developed for rough thinning and small clear fell up to 22”
and processing to 24”. In the 200 series, the versatile, fixed rotation
HTH 245 features two-speed feed motors for fast delimbing of smaller
stems, while the HTH 260 features a 25.6” cutting capacity. With a
maximum cutting capacity of 25.6”, the HTH 470 has the feeding power of
constant four-wheel drive and two moving and two fixed hydraulically
serial-connected feed rollers. The HTH 450—with a maximum cut capacity
of 22”—is a lightweight all purpose head for thinning and regeneration
harvesting. Waratah’s FS series includes high accumulation, disc saw
felling heads for swing-to-tree feller bunchers. With a cut capacity of
22”, the FS20 increases productivity in small diameter wood and has an
enlarged accumulator pocket, while the FS22 has a front discharge system
that directs the main chip path away from the carrier. With a 24” cut
capacity, the FS24 has an accumulating capacity of 4.8 sq ft. Both the
FS22 and the FS24 are single post, centre pocket, front cut felling
heads. www.waratah.net Reader
Service Card #177
