The Rothenberger pressing jaws, made from proven materials and manufacturing quality, are suitable for system-compliant crimping of fittings made from metal or plastic systems. The application of a special hardening process, the Dura Lazr Tec technology, along with partial laser hardening, allows for precise and secure crimping while simultaneously increasing durability. The result is minimized wear and 100% more crimp cycles compared to the previous model. Additionally, long-term corrosion protection enhances the longevity of the pressing jaws. With the use of a highly durable special steel, the pressing jaws are compatible with all crimping machines that have an axial thrust force of 32 - 34 kN. The Dura Lazr Tec process—partial laser hardening—achieves the highest hardness at highly stressed points, leading to minimal wear and high contour fidelity. Combined with the forged, highly durable, and flexible special steel, the new generation of pressing jaws achieves a 100% longer lifespan compared to its predecessor. The 3-bolt synchronization mechanism allows the pressing jaw to be opened with a single finger. Precision-crafted contours ensure optimal and secure crimping. The standard pressing jaws are suitable for the Romax 4000, Romax 3000 AC, and Romax AC ECO, with a constant axial thrust force of 32 - 34 kN and compatible jaw holder. Pressing jaw for system-compliant crimping of fittings with a diameter of 40 mm (plastic systems). Features of the pressing jaw system: Standard pressing jaw contour: HA.