Risk of fatal injury to operating personnel if the top speed is
exceeded, resulting in workpiece loss and parts flying off!
• A reliable speed limiter must be installed in the machine tool
or technical equipment and proof must be provided that the
speed limiter is effective!
Air transmission system
Air transfer takes place only when the headstock spindle is at a
standstill, via profile seals provided radially in the distributor ring.
The profile seal is designed so that the outer upper section of the
surface is larger than the surface of the openings. Upon
pressurization the difference in surface area exerts a radial force
on the profile seal in the ring-shaped chamber of the distributor
ring, resulting in optimal static sealing of the profile seal at the air
transfer point. This allows low-loss flow of the air through the
openings in the profile seal into the cylinder chamber of the chuck.
If the supply of compressed air is stopped, the double check valve
closes and the pre-tensioned profile seal raises from the chuck
body due to its elasticity and is not subjected to wear during
rotation of the chuck. The off- and return air out of the opposit
cylinder chamber leaves for the most part directly below the
associated profile sealing.
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