Modular frame technology enables different variations optimized to the working conditions, like 4-knife heads for large and branched coniferous trees, and compact 3-knife versions for crooked trees and hardwood. Changes between the versions are possible even as retro-fit, by changing a frame module.
The modular structure facilitates also using of high level of automation in manufacturing, resulting in high precision products. The frame modules are machined in one piece after welding assembly for the highest possible dimensional precision. This together with large shafts and bushings make lifetime of the head exceptionally long, with minimum need for maintenance.
