SP releases their new 461 LF thinning head

The new head replaces the popular SP 451 LF.

The new head is designed to optimally work in tree sizes of 10 to 25 cm (4 to 10 in) DBH, and has a maximum recommended DBH of 35 cm (14 in). SP has announced many improvements to the 461 LF logging head. These include:
 

• An updated hydraulic valve bank with a new layout, resulting in better reliability and energy efficiency, as well as increased speed to certain functions.
• A more efficient 20 cc saw motor.
• A new length measuring unit that has a more robust design and better hydraulic functioning.
• Expander pins and improved pin assembly on exposed positions.
• A new reinforced saw box for better handling of butt flare, and an increased height of the saw box by 20 mm (0.8 in) to minimise snow packing.
• A reinforced frame for durability. The frame is also designed with higher precision for good fit.
• Hose routing is improved, and can use metric or ORFS fittings.
• It is possible to adapt the harvester head to be used with all control and measuring systems on the market.

Additional improved options for the new head include more robust and faster multi-tree equipment, a new pump and better placement of the tanks for colour marking, Sawbox ICE for easier felling in snowy areas, and a Contorta knife for improved delimbing quality of contorta pine. Key specifications for the 461 LF are included in the table below. Source: www.spmaskiner.com