accumulation , making the FD55 a standout in the category . For work on steep terrains , the FD55 can be paired with the 843L , and with the 643L for flatter areas – further proving the versatility of this felling head .
The FD45 felling head boasts the deepest accumulation pocket , improving productivity for thinning small trees . Compatible with the 643L Wheeled Feller Buncher , the offset pocket on the head enables numerous stems to be gathered at the same time , and moved to the pocket after each cut . The twinpost architecture of the machine optimizes visibility , allowing operators to feel confident in their every move . When combined with the 643L , operators can tackle flat or hilly terrain and dry or muddy conditions .
Ideal for final harvests or large trees up to 559 mm ( 22 in ), the FD22B features a tall , single-post design . For loggers who work on sloped ground or with big timber , the raised tilt-back head angle provides improved load transfer capacity and additional stability . The FD22B features a large accumulation scope , hardy clamping force for better tree control , and ‘ workhorse ’ gathering arms – further contributing to increased productivity and uptime .
Swing-to-tree For swing-to-tree applications , John Deere offers operators two different types of felling head attachment rotation features , based on their task at hand . The standard wrist ( FS model ) rotates 15 ° to each side , and is normally used when no specific alignment of the tree is required on the ground . The FR model , known as the high rotation wrist , rotates up to 310 ° or 155 ° to either side . This wrist design acknowledges the need to position trees on the ground that allows the next operation to be even more efficient . It also enables the operator to cut along boundaries more efficiently , without additional travel or swinging to position the fallen timber along the line . When combined with the M-Series Tracked Feller Bunchers ,
The John Deere FD55 features large bore cylinders , a taller horn and clean bunch release , boosting productivity
loggers can experience improved productivity , even in the most difficult of conditions .
The FS22B and the FR22B heads are two high-rotation heads suitable for full range logging operations , from thinning to final cut of up to 559 mm ( 22
in ) diameter . The most versatile head available on all John Deere Feller Buncher models , the FS22B harnesses a versatile 30 ° wrist for plus or minus 15 ° rotation and firm clamping force for excellent tree control .
The wider arm spacing and horn design deliver a high accumulation capacity , maximizing productivity . The FR22B boasts a full 312 ° rotation wrist and offers bestin-class accumulation capacity , with a more condensed design to improve felling head visibility . Both heads are compatible with several M-Series models , including
The John Deere FD55 felling head was designed for thinning and final harvesting
the 803M , 853M , 903M and 909M Tracked Feller Bunchers .
FR21B heads are available on the 803M , 853M and 859M Tracked Feller Bunchers . The FR21B is an excellent , lighter weight attachment , best suited for small to midsized timber with a generous 546.1 mm ( 21.5 in ) cut capacity .
This head is known for its high accumulation capacity and superior pickup force that enables effortless placement of fallen trees . When paired with the long reach boom option on the 903M , it achieves over 32 ft of reach to maximize cutting swath and minimize the
amount of machine movements . The FR24B felling head is compatible with the larger , more powerful 953M and 959M Tracked Feller Bunchers . Ideal for working with large timber , the FR24B is available with optional longer harvesting arms for better large diameter tree control .
International Forest Industries | DECEMBER 2017 / JANUARY 2018 49