Compared to mineral oils, synthetic oils can be used in a wider
operating temperature range, whereupon the temperature-related
viscosity deviation is lower (higher viscosity index). In addition,
synthetic oils have a higher thermal stability and a higher ignition
point.
With medium temperatures of more than 80°C (176°F) or ATEX
units, you should therefore use synthetic, high-quality indus-
trial gear oil with an ignition point above 200°C (392°F) in the
gear unit and as a buffer fluid only.
Alternatively, a synthetic high-performance hydraulic oil with an
ignition point above 200°C (392°F) can be used in the buffer.
The use of oils in contact with EPDM is prohibited. In these cases,
an alternative lubricant must be selected for the buffer or the circu-
lation system.
All gear oils and buffer fluids used in the food and feed industry
must be food safe (e.g. NSF-H1).
NOTE!
Special lubricants can be supplied upon request. In this case, the
agreed limits apply.
All values specified are recommended guidelines. Consult the
technical data sheets of the relevant lubricant manufacturer
for their specified operating temperature ranges and other oil prop-
erty details.
Oil service life
Please observe the service life indicated in the relevant operating
manuals for your Börger machine.
Appendix
BA-Classic FL_en-US, 03.05.2018
www.boerger.de / www.boerger.com
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