What is the differences between hydraulic cutting machine and circle cutting machine?

We use the hydraulic cutting machine to cut the big tires or even whole tires into pieces, but use the circle cutting machine to cut the inner rings of tires.
The steel wire of inner rings has a high value, so some clients need to separate the steel wire from tires. If the diameter of tires is bigger than 1.2m, we suggest using the circle cutting machine to cut the steel first, then using the hydraulic cutting machine to cut the tires without inner rings into pieces.