Wang Jingxin
Northeast Forest University, Harbin, China
Li Guanda
Northeast Forest University, Harbin, China
Abstract
The history and development of log grapples used in China and their working parameters are given. An analysis is made of the main technical features. Results show that the electro-mechanical log grapple, driven by an electric drum, is the most suitable for the special working conditions found in Chinese forestry at the present time.
