Lexair Inc.’s Multi Mini Rhinobar, a hydrodynamic bar feeder for use with Swiss-type CNC screw machines, features a three feed tube cartridge instead of the traditional single feed tube. The bar feeder combines three feed tubes inside a single aluminum barrel. Bar diameter capacity ranges from 6.35 mm (¼ inch) to 20 mm, and models are available for either 6-ft.or 12-ft. bar lengths. By eliminating the need to pull one feedtube to insert another when changing sizes, productivity is increased.
A rotary manifold at the rear of the barrel distributes oil flow to the feed tube that is in service. Oil fills the gap between the barstock and the feed tube, and as the bar begins to turn, hydrodynamic forces move it toward the center on the feed tube. Centering forces are amplified as bar speed increases.
The Multi Mini has ergonomic design features and an upgraded safety interlock system. It includes a front swing-out mechanism for fast and easy reloading of barstock, an automatic pusher return at the end of the bar, and standard built-in Z-axis retraction capability. A removable pendant provided convenient operator control.
