Jäger Z45-D160.02 S5A2 Manual

Technical descriptionItem no. 10301084, Revision 08 13 ( 40 )5.3 CoolingThe HF spindle does not feature built-in cooling. However, this means that ithas a lower power than an HF spindle with cooling.Note: Extension of the service life through heat dissipation.Heat is produced during operation of the HF spindle. The temperature of theHF spindle should not exceed + 45° C as this shortens the service life of thebearing.u Check the temperature of the HF spindle on the housing.u Dissipate the heat using the spindle holder.5.3.1 Cooling via spindle holderExample of design:Air-cooled spindle holderExample of design:Liquid-cooled spindle holderTo increase the power of the HF spindle, the heat generated must be dissi-pated via the spindle holder (optional accessory).If the spindle holder is to be produced in-house:Ü Contact Nakanishi Jaeger GmbH.Ü Request the tolerances and production plan for the spindle holder.Ü Produce the spindle holder from a thermally-conductive material (e.g. alu-minum).Ü Observe the dimensions of the clamping range in the Technical Specifica-tions [} 14] section. Make sure that the HF spindle is enclosed by the spin-dle holder to the specified length.Ü Add cooling fins or holes (greater heat dissipation) to the external surfaceof the spindle holder.5.4 Sealing airFor guidelines on air quality,see "Air purity classes (ISO8573-1) [} 24]" section.The sealing air prevents foreign bodies such as chips and liquids (e.g. emul-sions) from entering the HF spindle.Ü Check that air escapes at the front between the housing and the rotatingparts of the HF spindle.5.5 Pneumatic tool changeFor guidelines on air quality,see "Air purity classes (ISO8573-1) [} 24]" section.The tool change or tool taper change is performed pneumatically.During this, a mechanism is operated inside the HF spindle which clamps, re-leases, or ejects the tool taper or collet.