Function
28
02.00|ROTA TP |en
DANGER
Risk of fatal injury to operating personnel if the top speed is ex-
ceeded, 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.
4.3
