Cylinder rust/corrosion

Corroded cylinders thanks to high concentration of ammonia

Aluminium does not rust, but it does corrode. Corrosion damage to cylinders results from excess ammonia in the air. The moisture in the air forms an aggressive acid with the ammonia. When aluminium corrodes, the volume of white aluminium oxide increases enormously. Any coating that is supposed to protect the aluminium is crushed so the corrosion simply continues.

Corrosion-resistant end caps

The choice of aluminium alloys thus largely determines the corrosion behaviour of cylinders. With the introduction of the cylinder series DMCA/RC, we have solved the corrosion problem. Here, the end caps are made of a corrosion-resistant aluminium casting alloy with two surface treatments. 

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