The choice of a spring assembly is made based on:
• The diameter of the suction cup
• The load to be lifted
• The stroke
• The diameter of the suction tube and the type of connection
• The shape of the part to be handled
Two functions:
• The spring function ensures that the gripping points are pressed on the same plane during multiple suction cup grips
• The anti-rotation function allows the piece to always be gripped in the same position.