A mixing machine includes a mixer body, a head extending from the mixer body and including a rotatable output member for receiving a mixer tool and a bowl support mounted to the mixer body and positioned below the head. A slideway system is configured to enable vertical movement of the bowl support along the mixer body between a lowered position away from the head and a raised position toward the head. The slideway system includes a first metal surface, a second metal surface opposed to and facing the first metal surface, wherein a relative sliding movement between the first metal surface and the second metal surface occurs during vertical movement of the bowl support, and an ultra-high-molecular-weight plastic insert disposed between the first metal surface and the second metal surface to limit friction during the relative sliding movement.