7 Operation and regulation
HSD S.p.A. © - h0106k01a.fm120718
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7 Operation and regulation
7.1 Environmental conditions
The manufacturer has inspected and tested its products under standard environmental conditions.
Contact the manufacturer for information regarding applications in special environments.
7.2 Running-in
Prior to being packed, the product is subjected to an automatic running-in cycle to ensure the
correct distribution of lubricant (long-life grease) along the ball races of the bearings and to run-in
the balls and races of the bearings themselves. Where present, the reduction gears and servo
motors are also run-in and dynamic tests of the internal pneumatic and hydraulic circuits are
carried out.
The running-in cycle also includes a detailed check of all the control and signalling devices through
the simulation of various machining cycles on the test-bench.
7.3 Warm-up
The manufacturer uses high-precision angular contact bearings, pre-loaded and lubricated for life
with special high-speed grease.
When starting-up the electrospindle for the first time each day, allow it to run a short warm-up cycle
to allow the bearings to gradually reach a uniform operating temperature and obtain uniform
expansion of the races and correct pre-loading and rigidity.
It is compulsory to enable the following warm-up cycle, without carrying out any
machining operations:
50% maximum rated speed for 2 minutes. Use a tool holder with a maximum speed
maximum rated speed;
75% maximum rated speed for 2 minutes. Use a tool holder with a maximum speed
maximum rated speed;
100% maximum rated speed for 1 minute. Use a tool holder with a maximum speed
maximum rated speed.
Pre-heating cycle must also be performed each time the machine is not working for a
period of time sufficient to cool the electrospindle to room temperature.
Only in the case of the first start-up after storage or machine downtime over four months,
anticipate the pre-heating cycle by a preliminary phase of 2 minutes at 5000rpm.
Failure to enable the warm-up cycle causes irreversible damage.
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