Notes
Outline
Perspectives on
Central European
Cable Yarding Systems
Hans R. Heinimann
Karl Stampfer
Johannes Loschek
Leo Caminada
Objectives
Present the state of technology
For yarder technology
For cable-based harvesting systems
Identify challenges for future development
Technical functions
Transportation Functions
Hoisting and Skidding Functions
Active slackpulling
Integration
of System Components
Processor Tower Yarders
Cut-To-Length System
Tree-length System
Yarding Productivity [thinning]
Yarding Cost [thinning]
Future Challenges
Conclusions
Yarder and carriage concepts improved by
introducing fluid power in the 1970s
Integration of yarding, handling and processing functions
automation and remote control of carriage functions
Harvest system design
resulted in mechanized thinning operations on slopes up to 60%
Saved about 40% of cost compared to motor-manual felling and processing in thinnings
Separating functions from mechanisms and structures for implementation is important
Slide 15