The Chunming brand 4YMB series self-propelled flax harvester is a mechanized harvesting equipment specifically designed for flax crops. It is suitable for harvesting flax and hemp during their ripening period, and evenly spreads the flax stalks in the field for natural retting (i.e., dew retting method: its core principle is the decomposition of pectin through natural microbial fermentation), thereby achieving effective separation of flax fibers from the woody core.