The new felling heads are compatible with the 800M and 900M Series tracked feller bunchers.
The FS50/FR50 felling heads build upon the successful qualities of previous models for increased productivity, range and visibility, and feature in 30-degree and 310-degree wrist configurations respectively. The heads have increased accumulating capacities, improved range of motion and good visibility. The new models are designed to make the hardest tasks easier and more efficient for John Deere customers.
The FS50/FR50 features good alignment of bunched timber to allow for optimal logging and harvesting. The new felling heads provide a taller horn that works together with the pocket and arms to collect larger, tighter bunches. The horn delivers good handling of tall trees, which improves skidder productivity during tree removal. Both models also include arm cylinders mounted high for good wear protection of the saw housing, and can easily hold up to 15 six-inch (15 cm) trees.
The FR50 configuration maximizes versatility when positioning bunches in both plantation and thinning conditions due to the increased rotation. Additionally, the FS50/FR50 models provide good visibility to the cutting area and superior wear protection of saw housing. A full coverage option is available for both models, and for the FR50 model, sealed bushings in all clamp arm pivot joints are available. Source