LEIPA and ExxonMobil develop high-performance paper machine oil

LEIPA has developed together with ExxonMobil a high performance paper machine oil for the lubrication of components of the wet end. This oil is a world first, and LEIPA takes the lead in the paper industry. In 2008 LEIPA asked the ExxonMobil for a new lubricating oil for the lubrication of the wet section o­n PM 4.This was due to repeated clogging of the filter and the formation of deposits in the tank and in bearing housings. Under laboratory conditions, a new paper machine oil was produced. However, even extensive laboratory tests are not able to replicate the actual field conditions and the ever-increasing demands o­n today's lubricants always be appropriate. Supervised field tests are therefore regarded as essential and integral part of the product development process at ExxonMobil. LEIPA declared himself ready for the first field test, an oil change to Mobil DTE PM Excel 150 was carried out in 2010. After the test phase it was detected by opening the gear cover that the tooth flanks had even smoothed. The transmission temperature dropped to about 10 °C, which was caused by less friction. Due to the lower friction, the energy consumption decreased by almost 3 %. This was done at the same conditions (speed, paper weight, etc.) Due to the lower friction, the lifetime of the aggregates increase significantly. By lowering the oil temperature of 10 °C, the life of the oil doubled. Finally, the filter life has increased from two to nine months and the cleanliness levels have improved significantly while remaining filter elements. Cleanliness classes of 14/11/9 and 13/10/7 are now standard. These values are three classes better than the existing oil. Using these values we obtained a double life for all aggregates. Summary: The switch to Mobil DTE PM Excel 150 was a great success, with sustainable cost reduction!