Ironworker is a class of machines that can shear, notch, and punch holes in steel plate. There may have been a brand name called Ironworker. The name is now used to refer to the whole class of machines (made by at least a dozen brands, such as Piranha, GEKA, Edwards, Pedinghaus, Precise Power etc.). If there ever was a brand name, it has now become a genericized trademark. Ironworkers generate force using mechanical advantage or hydraulic systems.