Abstract: An apparatus (10) for providing rotary and linear motions, either simultaneously or separately. The apparatus (10) includes a rotary table assembly (14) that interconnects a rotary actuator assembly (12) and a power cylinder (18) or a comparable device. The rotary table assembly (14) includes a rotatable hub (16) to which the power cylinder (18) is mounted. Rotation of the hub (16) causes rotary motion of the entire power cylinder (18). Because of the interconnection between the rotary actuator assembly (12) and the power cylinder (18) using a rotary table assembly (14), a modular construction is provided whereby the power cylinder (18) can be positioned both vertically and laterally, depending upon the application or intended use of the apparatus (10). In one preferred embodiment, the rotary actuator assembly (12) converts linear movement to rotary motion using hydraulic oil to provide a smooth, adjustable control of the rotary shaft (32) of the rotary actuator assembly (12).