The Coanda Principle

the coanda principle

Operating principle

  • Pneumatic operation with integrated vacuum generation
  • With the Coanda principle, compressed air is guided through an annular gap which accelerates it
  • The increase in the flow speed results in the “Coanda effect” in which the escaping air follows a convex surface
  • The air flowing along the surface produces suction (“entrainment”) in the ambient air



  • High suction rate and low air consumption (the required operating pressure is 1 to 5 bar) due to the Coanda effect
  • Large contact surface with narrowly positioned vacuum openings prevent the workpiece from being sucked in or damaged

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