A Multiple OD Clamping Collet Chuck – Hydraulic Stationary is a non-rotating, hydraulically actuated workholding system designed to clamp multiple components simultaneously on their outside diameter. Using high-force pull-back collet mechanisms with dead-length accuracy, it ensures zero axial movement, making it ideal for SPMs, transfer lines, CNC stationary operations, and automated production cells requiring high productivity, rigidity, and consistent precision.