PURPOSE: A ball head for industrial machinery is provided to spherically mold a hollow inside of the ball by partitioning and manufacturing the ball of the ball head. CONSTITUTION: A ball head for an industrial machinery comprises a main body(30) and a ball. The main body is connected to a supporting board. The ball race is ascended and descended inside the main body. The ball is inserted inside the main body and is divided into a fist body(100) and a second body(200). The first and the secondary body are screwed. A first hollow is formed inside the first main body. A second hollow is formed inside the secondary body. The first and second hollows are connected when the first and second bodies are connected. A hollow part is formed inside the ball when the first and second hollows are connected.
