Shafts with steel internal design and brass rings have high mechanical resistance and are distinguished by greater durability. The rings are removable and in case of breakage can be substituted for manufactured in pantograph moulds with Teflon covering or food polymer.

Shafts for rotor presses that are used for crackers  production.

These shafts have steel skeleton construction with rings which are made of brass or polymer.
These shafts also have selective plates which are made of brass or polymer in pantographic way

Here below you can see samples of sugar cookies, crackers and cookies like hard tacks that can be produced by means of hacking or protraction on  rotors produced by "Imperia of Metals'.