Vibrations in a washing machine contribute to wear and reduce the life span. We have made our machines extra sturdy by building on four powerful shock absorbers rather than two shock-absorber legs. Many manufacturers stabilize their washing machines with concrete. We’ve chosen cast iron, which lasts longer. Because this also reduces vibrations, there is less wear on the machine. It is also easier to recycle iron, another benefit for the environment. Cast iron also provides for higher spin speeds (1800 rpm), making the spin cycle more efficient.
If you want to be sure your washing machine will stay fresh for many years, an outer drum in stainless steel is far preferable to plastic. You can spin at higher speeds (up to 1800 rpm), and you can also disinfect thanks to a high water temperature. The drawback of a plastic outer drum is that it attracts dirt and ages quicker at high temperatures. The stainless steel outer drum lasts longer than plastic.