The Electrodynamic Vibration Test System developed an issue with high conductivity of the cooling water, causing a lot of corrosion and a yearly replacement of expensive components within the shaker system. Our Ion Exchange Filter (IEX), PROTECT+ion, keeps the conductivity low and therefore prevent corrosion.


Operation Conditions

Filtration was performed in a shaker using one IEX. The first filter was installed in August 2015 and replaced in January 2016.

  • Flow rate: 4 to 6 GPM
  • Temperature: 60 to 100 °F
  • System Volume: 15 to 20 gallons


  1. Dramatic decrease in the conductivity of the water after the installation of the IEX
  2. Expect to increase the lifetime of the components of the system, such as the armature, which ultimately saves on maintenance costs
  3. Expected cost savings of $12,000 to $15,000 every two years

“Within our test engineering group, we operate two electrodynamic vibration test systems which we rely heavily on to support our product development. These “shaker” systems are cooled by a closed-circuit water system which allows de-ionized water to flow within the presence of high-current power. We found that these systems were prone to mechanical breakdown from corrosion as our water was becoming ionized over time. These failures would result in costly replacement components and even more costly downtime. To mitigate this issue we installed an Ion Exchange Filter from i-2-m on both systems and immediately noticed a dramatic reduction in the overall conductivity level of our cooling water. We now record a significantly lower conductivity level in our cooling water system and are tracking a longer lifetime for our system components.”

Matt Zerilli, Manager-Test Engineering, MANN+HUMMEL USA