6
EN
6. Assembly
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951-170-218-EN
Version 06
6.7 Connection of aerosol lines
6.7.1 General notes on the connection of aerosol lines
UFD10-1-XXX000 MQL systems have three
aerosol outlets, while UFD20-10X000 has
2x3 aerosol outlets. These are designed as
plug-in connections for hoses with an outer
diameter of 12 mm.
Several factors determine the quantity of
lubricant that emerges as an aerosol at the
tool. These include the cross-sections of
lines and guideways in the aerosol trans-
port route, from the MQL system to the
outlet opening on the tool.
The following rules must be followed to re-
duce loss of aerosol and pressure during
transport:
○
Lubricant should not be fed through
sharp changes in cross-sections, narrow
passes, or abrupt bends because it may
deposit at these locations and thus be-
come unavailable for application.
○
The line cross-section must be large
enough.
An internal diameter of 10 mm is rec-
ommended. However, the cooling duct
diameter in the area of the toolholder
should be < 8 mm because higher flow
velocity is desired here.
○
The aerosol line should be kept as short
as possible. Pressure and aerosol losses
increase at longer aerosol line lengths.
○
The aerosol lines should be laid as
straight as possible, and sharp bends
should be avoided in particular because
these can lead to lubricant settling. If de-
flections cannot be avoided, they should
have a radius of at least 200 mm.
○
The aerosol line should have as few
changes in cross-section as possible. If
cross-section changes are unavoidable,
they should be as smooth as possible. A
transition angle of <15° is ideal.
○
All joints should have a smooth surface
and have no holes or projecting edges.
This applies especially to the transition
area between the tool and toolholder.
Aerosol outlets,
Fig. 33
UFD10
Aerosol connections
(plan view)
UFD20
Aerosol connections
(plan view)
Aerosol line
(provided by
customer)
See Figure 33
