Supplying The Coolant; Installing The Spindle - Nakanishi CTS-2630 Operation Manual

11. SUPPLYING THE COOLANT

CAUTION
• A supply of coolant is required when using this spindle. If this spindle is used without
supplying coolant, the generated heat could damage the components.
• Use coolant with an ISO viscosity grade of VG 22 or lower. The lower the viscosity, the
easier it is for the coolant to be released.
• Supply cooling air from the motor before supplying the coolant. If the coolant is
supplied without first supplying the coolant air, the air purge will be lost and the
coolant may enter the spindle and cause damage.
• Make sure that coolant passes through a filter with a filtration accuracy of 5 μm or less
before it is supplied to the spindle.
11 - 1 Operation Procedure
Supply cooling air
Coolant supply start
Rotation start-up
11 - 2 Stop Procedure
Rotation stop
Coolant supply stop

12. INSTALLING THE SPINDLE

WARNING
When installing the spindle, make sure that the fixed base is grounded to the machine tool
in order to avoid the risk of an electric shock.
CAUTION
• Do not damage or subject the spindle to impact when installing it. Doing so may cause
the components to malfunction.
• Never fasten a sleeve over the spindle body housing (diameter φ26 mm) section when
installing the spindle.
Install the spindle by using the mounting holes on the body, and do not fasten a sleeve over the body
housing section. This is designed to eliminate deformation/damage of the spindle when performing the
installation.
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Supply clean cooling air adjusted to 0.25 - 0.3 MPa from the motor.
* When using the spindle for continuous operation, adjust the air pressure
to 0.3 MPa.
Coolant liquid is adjusted to 3.0 - 20.0 MPa.
* When using the "CHP150-1200" hydro pump, the maximum pressure
varies depending on the viscosity of the coolant.
Maximum coolant pressure (approximate)
• Water soluble : 10 MPa
• Oil soluble : 20 MPa
Start the motor gradually.
Stop the motor.
Stop the supply of coolant.
* To stop the cooling air supply, make sure that the coolant is supplied for
more than five minutes after coolant supply stops.