There are two ranges of this product, one steel and the other aluminum. The first comes with a thread on the body, in the base and in the rod, in order to mount the proper accessories. The external and internal nitriding treatment provide good wear and corrosion resistance. On the other hand, the range in aluminum is manufactured completely of aluminum, with the cylinders being given an anodizing treatment, which provides treatment against corrosion.
The aluminum cylinders also come with a bellows that serves as protection for the rod, and 30 tonne models carrying handles.