Positioners and Rotating Fixtures for Heavy Assemblies

Positioner and rotating-fixture selection for heavy assemblies: headstock-tailstock, trunnion, and turntable designs, and sizing for payload and torque.

Headstock-Tailstock vs. Trunnion vs. Turntable Positioners

How headstock-tailstock, trunnion, and turntable positioners support and rotate heavy parts: axis geometry, CG offset torque, bearing moment, and controls.

Sizing a Positioner: Payload, CG Offset, Overturning Moment, and Torque

A worked example for sizing a tilt-and-rotate positioner: combined CG, rotation and tilt torque, bearing overturning moment, base stability, and derating.