Product Manual

Roto Synthetic Fluid ULTRA is a synthetic oil based 4000 hours lubricant, specially developed for
use in single stage oil-injected screw compressors running in demanding conditions. Roto
Synthetic Fluid ULTRA can be used for compressors operating at ambient temperatures between
0 °C (32 °F) and 45 °C (113 °F). For more extreme conditions or when longer oil life is required, it
is recommended to use Roto Synthetic Fluid XTEND DUTY.
Roto Synthetic Fluid XTEND DUTY
Exchange interval for Roto Synthetic Xtend Duty
Ambient temperature Element outlet
temperature
Exchange interval * Maximum time interval
*
up to 35°C (95°F) up to 100°C (212°F) 8000 2 years
from 35°C (95°F) up to
40°C (104°F) (see note)
from 100°C (212°F) up to
105°C (221°F)
6000 2 years
above 40°C (104°F) above 105°C (221°F) 5000 2 years
Note: The presence of dust and/or high humidity may require a shorter exchange interval.
Consult Atlas Copco.
Atlas Copco's Roto Synthetic Fluid XTEND DUTY is a high quality synthetic 8000 hours lubricant
for oil injected screw compressors which keeps the compressor in excellent condition. Because
of its excellent oxidation stability, Roto Synthetic Fluid XTEND DUTY can be used for
compressors operating at ambient temperatures between 0 ˚C (32 ˚F) and 46 ˚C (115 ˚F). Roto
Synthetic Fluid XTEND DUTY is the standard lubricant for oil injected screw compressors
equipped with freeze protection or Energy Recovery.
6.4 Oil, filter and separator change
Important
Never mix oils of different brands or types. A label, indicating the type of oil filled ex-
factory, is attached on the air receiver/oil tank.
Always drain the compressor oil at all drain points. Used oil left in the compressor can
shorten the lifetime of the new oil.
If the compressor is exposed to external pollutants, used at high temperatures (oil
temperature above 90˚C / 194˚F) or used under severe conditions, it is advised to
change the oil more frequently. Consult your supplier.
Instruction book
2920 7199 10 69