The plant was using AEON 9000 TH on a one-year-old Gardner Denver 150-HP air-cooled rotary screw compressor. The AEON 9000 fluid was an industrial grade fluid rated for 8,000 hours in an ideal environment with routine fluid analysis.
The H1 food-grade version, Gardner Denver AEON 6000 FG is rated for 4000 hours under ideal conditions with recommended fluid analysis every 1,000 hours.
It was recommended that the plant switch to Compresyn® 545 ISO 46 synthetic food-grade fluid. The unit was flushed twice and the filter and separator changed in August of 2010. As of July 2012, this unit had 14,000 hours on the Compresyn® 545 ISO 46 fluid without a change. All critical values (i.e. TAN, viscosity, oxidation) are well within acceptable limits.
The unit was on track to reach 16,000 hours, when our routine oil analysis found traces of zinc. It was discovered that this was due to cross contamination with an industrial hydraulic fluid by using a common transfer container. Since the fluid no longer complied with food-grade (H1) standards a fluid change was recommended.
Comparable fluid cost for 14,000 hours:
AEON 9000 (Industrial-grade) = $4,334
AEON 6000 FG = $6,496
Compresyn® 545 ISO 46 = $1,663
Find out the dramatic results the plant experienced when switching to Compresyn® 545 ISO 46 Synthetic Food-Grade Fluid
Fluid change-outs were conducted every five weeks using an OEM recommended fluid. When calculating the cost of labor, fluid and filters it was estimated that the change out cost for the plant was $6936.00.
Find out the dramatic results the plant experienced when switching to COMPRESYN 250 ISO 100.