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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.
During actuation of the clamping device (clamping or releasing)
it must be ensured that a short ventilation time is maintained
between the switching processes. This ventilation time must last
at least 0.5 seconds, depending on the hose length. For this
purpose we recommend the use of a 4/3- or 5/3- way valve
(central position depressurized).
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