An apparatus for aligning an outlet of an injection unit with an inlet of a mold mounted between platens of a molding machine , the apparatus comprising: an injection unit positioning assembly interconnecting the injection unit to the molding machine , the injection unit positioning assembly includes a vertical beam assembly , a horizontal beam assembly and a lower assembly , the lower assembly is attached to the molding machine and is coupled to the horizontal beam assembly , which is coupled to the injection unit , wherein the lower assembly including a first linear translation assembly configured to engender a first linear translation movement of the injection unit in a linear direction along a translation plane, a second angular translation assembly configured to engender a second, arcuate movement of the injection unit in an angular orientation along the translation plane, and a brake assembly, wherein the lower assembly includes a fixed positioning member and a movable angular positioning member , characterized in that the lower assembly further includes a bearing housing , a T-nut , slider guides (180a-180d), a fastener , and a piston , the brake assembly extending between the first linear translation assembly and the second angular translation assembly, wherein the brake assembly is configured to selectively create a compressive force between the first linear translation assembly and second angular translation assembly to maintain the position of the injection unit , when activated the brake assembly fixes both the angular orientation (about the Z-axis) and the linear position (in the X-direction) of the lower assembly and the horizontal beam assembly , thereby fixing both the angular orientation and the linear direction position of the injection unit . an injection unit positioning assembly interconnecting the injection unit to the molding machine , the injection unit positioning assembly includes a vertical beam assembly , a horizontal beam assembly and a lower assembly , the lower assembly is attached to the molding machine and is coupled to the horizontal beam assembly , which is coupled to the injection unit , wherein the lower assembly including a first linear translation assembly configured to engender a first linear translation movement of the injection unit in a linear direction along a translation plane, a second angular translation assembly configured to engender a second, arcuate movement of the injection unit in an angular orientation along the translation plane, and a brake assembly, wherein the lower assembly includes a fixed positioning member and a movable angular positioning member , characterized in that the lower assembly further includes a bearing housing , a T-nut , slider guides (180a-180d), a fastener , and a piston , the brake assembly extending between the first linear translation assembly and the second angular translation assembly, wherein the brake assembly is configured to selectively create a compressive force between the first linear translation assembly and second angular translation assembly to maintain the position of the injection unit , when activated the brake assembly fixes both the angular orientation (about the Z-axis) and the linear position (in the X-direction) of the lower assembly and the horizontal beam assembly , thereby fixing both the angular orientation and the linear direction position of the injection unit . <EOS>