A micro-actuator for a head gimbal assembly includes a metal frame, PZT
elements, and a rigid beam. The metal frame includes a top support
adapted to support a slider of the head gimbal assembly, and a pair of
side arms extending vertically from respective sides of the top support.
The top support includes a rotatable plate and connection arms that
couple the rotatable plate to respective side arms. A PZT element is
mounted to each of the side arms. Each PZT element is excitable to cause
selective movement of the side arms. The rigid beam is mounted between
the side arms at an end opposite the top support.