Dear all,
I have recently come across some Japanese make Electrostatic oil cleaning system.I works on following principle:
Oil(contaminated) is passed through high voltage which charges the suspended dirt particles, and charged particles are pushed towards positive and negative electrodes. In the process contaminants get entrapped in collecter medium and thus all particles even of submicronic size is removed from oil.
Mainly used for any oil of less than 220 cst., specially popular in hydraulic oil case.
Now, the manufacturer claims that after cleaning the oil from this filtration system and adding 10% of fresh charge, same oil can be used for forever by repeating the same process.
Please let me know if somebody have come across this type of filtration system, and what would be the effect on oil after few repetetive cleaning cycles.As according to me after continuous use,depetion in additive package can't be make up by adding onle 10% of fresh charge.
Pl. give comments on any aspect of this particular system.

Regards

Dipen,

The electrostatic filteration is widely used for Hydraulic oils and many Steel Plants in India use this in-house cleaning process.

Kirlosker Electrodyne is a well known supplier of such equipment in India. A word of caution however, the manufacturers do not recommend use of this type of filteration for lubes containing "metallic additives" thus; it will "not be efficient" for engine oils.

Hussam Adeni

I have used these electrostatic cleaning systems for hydraulic applications in order to reduce contamination levels in order to improve the reliabilty of the system.This can be achieved by continuously running the cleaning system 24 hrs /day

In the above case the cost of breakdown of the equipment was much higher than a charge of 4000 ltrs of oil.
But still additive content was analysed for change of oil.