Push and Turn Tests on Screw Caps
This test determines the superimposed compression/torsional forces on opening and closing of childproof containers or pharmaceutical packaging. For this, a zwickiLine tabletop testing machine of Fmax 2.5 kN and an additional torsion drive of 5 Nm torque are used. The two test axes can be used for independent or combined axial/torsion tests as required, the package being opened via a rotary movement with superimposed axial loading. Important parameters are the required opening torque and the functioning of the childproof mechanism.