The mass of flywheel will incline as the punch speed inclines, it will decline as radius inclines. It would incline when the punch mould mass inclines. So it is chosen that big radius and small mould mass for saving cost of material and machine. The biggest mass of flywheel is about 1.3tons at 0.4m of radius and 6Kg of punch at the speed of 9m/s. So it is important for us to choose the punch mass. If it is 2Kg the biggest one will 400Kg at the speed of 9m/s at 0.4m. then choosing speed of punch is second factor. The rotation is first effect factor and then radius at last punch mass and its speed ie. n>r>m>v turn. Bigger force is big mass and speed in terms of energy conservation principle. So it is determined with bigger mass at certain speed.