______HSD Technological equipment for Automation _____________________________________
5801H0017 Rev. 02 _________________________________________________________ 52/98
§ 11 OPERATING THE ELECTRO-SPINDLE
11.1 CLIMATIC CONDITIONS
HSD S.p.a. has designed and tested its electro-spindles to operate under the following standard
climatic conditions:
• Altitude not above 1000 m above sea level
• Maximum ambient air temperature not above +40°C (+104°F)
• Minimum ambient air temperature not below -15°C ( +5°F)
• Coolant temperature (if relevant) at inlet to electro-spindle not above +27°C (+81°F)
and not below +23°C (+73°F).
Outside these tolerances some of the values declared in the tables and figures in section § 7 may
vary.
Contact HSD S.p.a. for information on installations other than the standard ones illustrated or
described in this manual.
11.2 RUNNING IN
The electro-spindle is run in in the factory prior to shipment. This ensures correct distribution of the
long-life grease in the bearing races. The run in cycle also includes comprehensive testing of all
electro-spindle controls and signal devices, and simulates various types of working cycles.
11.3 WARMING UP
Every day, when the electro-spindle is started up for the first time, let it warm up slowly without
load, this ensures that the bearings reach their running temperature gradually, and that the
bearing races expand evenly.
The following warming up cycle is recommended, to be performed with the tool holder in place
but without actually machining (no load):
50% maximum rated speed for 2 minutes.
75% maximum rated speed for 2 minutes.
100% maximum rated speed for 1 minute.
Warm the electro-spindle up before machining whenever the machine has been left idle long
enough for it to cool down to ambient temperature.
HSK VERSION ONLY:
NEVER START THE ELECTRO-SPINDLE WITHOUT THE TOOL HOLDER
IN PLACE.
Starting an HSK electro-spindle with no tool holder puts the balance and
functioning of the collet at risk.
Push the tool holder in until it touches the face.
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