<p>Adjusting the contact surfaces, or interferences, in an injection mold is a critical process that can affect the performance of the mold and the quality of the molded parts. This process often involves high impact loads, especially for large molds that involve large masses of inertia in motion and generate significant kinetic energy during mold closure. Impact forces can propagate through the mold structure causing damage to the tool, mold, or even the injection equipment where the mold is placed, causing operational errors due in particular to system vibrations. This study evaluates impact forces during mold closure using numerical simulations in ANSYS, focusing on the mold’s fixed part and its support structure. Results demonstrate that integrating energy-absorbing elements significantly reduces transmitted impact energy without compromising stability. This approach enhances safety and efficiency by minimizing vibrations and protecting machinery.</p>