... can forge the maximum outside diameter: 3, 200 mm Ring forging can forge the maximum outside diameter: 4, ... tons, 2000 tons of oil hydraulic press, 3800NC ring-rolling mill and nondestructive inspection equipment as well as ... wind turbine shafts, ship shafts, heavy gears, flanges, ring pieces, all kinds of forging parts etc. If you ... If you have any question, please contact me. large forged gear ring