5 Installation and commissioning
HSD S.p.A. © - h0104k01a.fm120718
97
5.5.1 Compressed air specifications for HSD products
Insert compressed air with purity according to ISO 8573-1, Classes 2, 4, 3 - i.e.
• Class 2 for the solid particles: size of the solid particles < 1 µm;
• Class 4 for humidity: dew point < 3°C (37.4°F);
• Class 3 for total oil: oil concentration < 1 mg/m
3
.
Failure to comply with these specifications may cause the malfunction of the product.
The guarantee will be deemed as null and void if traces of pollutants are found during
repairs.
For example, compliance with the above specifications can be obtained by following the
instructions below.
If the machine has a lubricated air circuit, this must be isolated from the dry air circuit feeding
the product by means of non-return valves.
Install the filters shown in the following figure as close as possible to the HSD product.
In view of the fact that the efficiency of the filters is <100%, it is important that the machine tool
is supplied with suitably treated air.
For example, inject compressed air at point (1) indicated in the previous figure of purity
according to ISO 8573-1, classes 7 6 4, i.e.:
• Class 7 for solid particles:
dimensions of solid particles < 40 µm;
concentration of solid particles < 10mg/m
3
;
• Class 6 for humidity:
dew point < 10°C (50°F);
• Class 4 for total oil:
oil concentration < 5 mg / m
3
.
At the end of the working day, discharge the pneumatic system to allow the filters to drain
automatically.
Perform regular maintenance on the filters in line with the manufacturer's instructions and
replace them when they become saturated and less efficient (approximately every 6/12
months).
1. Main compressed air supply
2. Pre-filter 5 µm
3. Oil separator filter 0.1 µm.
4. To HSD product
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