HSD
9 OPTIONAL PARTS
9.1 COOLING WITH FORCED AIR
As an alternative to the electric fan, the electrospindle can be cooled by using the air of the
pneumatic circuit.
The pressurised air is channelled through a distribution flange, available both pre-assembled by
HSD and as a transformation kit.
The plate is available for models ES915, 919, 929, 939, 983 and 988.
This solution reduces the length of the electrospindle by 5cm and also allows you to eliminate the
clearance (10cm) necessary for the flow of air to the fan: the overall dimensions of the
electrospindle are therefore reduced by 15cm ( Figure9 1.).
A
100
50
B
Figure9 1.
A Four screws for fixing the electric fan
Ø external tube:
8mm
B Cooling air input pressure: 6/7 bar - 85/100 PSI
consumption: 7000 normal litres /
hour
The values indicated for the air consumption and input pressure relate to Service S1
i
described in the tables of chapter 3. For less heavy services, the user can evaluate
whether to reduce the air consumption by lowering the input pressure.
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