Productivity Studies of a Large Scale Semi-mechanised Harvesting System for Shortwood in Hilly Terrain

SYNOPSIS

Large scale extraction of shortwood E. grandis timber by means of a semi-mechanised system in hilly terrain gives high productivity from clearfellings. The system employs wheeled tractors and manually loaded low-bed trailers for infield shortwood harvesting. Loads of five to six tons are transshipped in bundled form by crane to road-haulage vehicles. Handling times are given for each operation for different categories of pole mass and load size.

Keywords:

• Semi-mechanised infield harvestinga
• Hilly terrain
• E. grandis shortwood
• Work study