PURPOSE: A machine is provided to enable users to produced a desired form of branching including the bi-directional form.CONSTITUTION: A chain type of blade moves freely to trim branches of a tree. The blade moves along to the manufactured board for the demanded task on. A bi-directional pruning machine is installed on a transferable apparatus including vehicles to prune the branches automatically on the preset height.COPYRIGHT KIPO 2013작업을 요하는 형태로 제작된 판을 따라서 이동하는 체인 형태의 칼날이 자유자재로 움직이면서 수형을 다듬어 나갑니다 칼날자체가 양방향으로 움직일수 있으므로 작업이 가능함니다