CNC Metal circular saw machine. 1 Air operated,hydraulic. 2 Has the circulating coolong system. ... ,no dusty. Technical parameter TypeYJ-275YJ-315YJ-350YJ-455Aluminum Cutting Machine The saw cuts the abilitymmφ80φ95φ115φ130 mm75 ... ,315,350350,400,455 CNC Hydraulic Metal circular cold saw machine