Paper Mills

L8560285Cardboard tubes and cores are essential winding components the technical performance of which, duly controlled by Abzac, is specially geared to this industry:

  • Crush resistance and dynamic load of the cardboard core, namely the capacity of the cardboard tube to withstand the variations in speed and weight of the rolls during winding and unwinding operations.

  • The E-modulus, or the permanent value enabling the determination of the critical speed as from which the cardboard tube starts to suffer from vibration and resonance.