June 30, 2025
As precision manufacturing advances toward higher speeds, tighter tolerances, and smart automation, the performance of workholding systems directly impacts product quality and production stability. The hydraulic expansion mandrel is engineered to address these demands through high-precision ID clamping, delivering outstanding coaxiality, total runout, and repeatability across a wide range of applications. Unlike conventional three-jaw chucks or tapered mandrels—which may induce deformation or radial runout at high speeds—the hydraulic expansion mandrel applies uniform radial pressure through an internal hydraulic mechanism, forming a high-rigidity interference fit with the workpiece's internal bore. This eliminates surface marring while ensuring stable, high-tolerance engagement.