ES721 ISO40 7 kW NL - HSD

HSD
Ethylene glycol concentrations over 15% may damage the NBR gaskets of the
product.
HSD recommends the use of ‘ARTIC-FLU-5’ (order code: H2161H0022) after testing it internally.
ARTIC-FLU-5 is a premixed ready-to-use liquid coolant. The coolant contains monoethylene glycol
and ecologically formulated corrosion inhibitors without amines, nitrates or phosphates and
guarantees protection for approximately one year. ARTIC-FLU-5 prevents the formation of rust,
limescale and foam deposits as well as the hardening, cracking and swelling of the rubbers and
couplings. It also complies with various international standards, including CUNA NC 956-16.
9.5 INTERNAL TOOL COOLING
9.5.1 Direct coupling
In the back of the electrospindle is positioned a direct connection of the tool liquid coolant (see
chapter § 8 ).
9.5.2 Deublin distributor
The electrospindle is prepared for the installation of the Deublin distributor.
i
See the use and maintenance manual of the Deublin distributor for the installation of the
component.
9.5.3 Controlled loss water distributor (DPC)
The cooling water reaches the tool through a controlled loss water distributor called “DPC” (HSD
patented). The exceeding water is drained out of the DPC. Drainage varies according to the water
flow through the tool: the less water comes out through the tool, the more water is drained out of
the DPC.
Drained water comes out from the DPC by gravity, so it’s important to follow the instruction above
to have a correct and complete drainage:
For the correct functioning of the DPC and to avoid damages to the
electrospindle observe the following indications.
� For the internal tool cooling use tap water, or water of equal
characteristics.
� Process the cooling water by a 25 µm filter. Service regularly the filter,
as instructed by the manufacturer, and replace it as it loses its filtering
capability.
� Feed the DPC by a flow of water of 10 liter/minute (0,35 CFM).
� Ensure that the drain holes (see chapter § 8 ) of the controlled loss
distributor are always free to drain.
� In case any tube is connected to the DPC draining holes, it must be
downward oriented. Tubes must remain downward oriented even when
the machine moves the electrospindle (see following figure).
� Tilt the electrospindle only in direction of the draining holes. (see
following figure).
5801H0066 en Rev.01 20/48