Mini Rhinobar Bar Feeder Puts a Charge into Small-Stock Production

Originally titled 'Bar Feeder Puts a Charge into Small-Stock Production '

Lexair’s Mini Rhinobar bar feeder automatically centers and feeds small-diameter barstock to maximize the productivity of Swiss-type CNC screw machines and small fixed or sliding head lathes.

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Lexair’s Mini Rhinobar bar feeder automatically centers and feeds small-diameter barstock to maximize the productivity of Swiss-type CNC screw machines and small fixed or sliding head lathes. The precision engineered single-tube bar feeder uses the hydrodynamic principle to quickly center 6-ft. (1.8-m) or 12-ft. (3.6-m) bars as small as 0.04” (1 mm) diameter. The barstock is supported in an oil bath in the feed tube, and as the bar’s rotational speed increases, hydrodynamic forces move it toward the center of the tube and stabilize it, delivering shorter cycle times and superior workpiece finishes. Feed tubes ranging from 0.125 to 1.625” (3.2 to 41 mm) diameter are available in 0.125” (3.2 mm) increments to minimize the bar-to-feed tube clearance and achieve maximum throughput on automotive components, medical devices, motor shafts and other small-diameter, high-production run parts.

The bar feeder’s ergonomic design features an upgraded safety interlock system and includes a front swing-out mechanism for easy reloading and sub 3-minute feed tube changes. Lexair’s single-valve design controls oil flow and pressure for increased bar control, accuracy and vibration-free operation. A completely enclosed fluid recuperator is designed to keep oil off the floor and contaminants out of the hydraulic system.

The outer barrel is a precision-extruded aluminum tube, held in place with a single clamp to further minimize barrel vibration and control Z-axis motion. A removable pendant allows the operator to control the bar feeder remotely, while a positive pusher retention system ensures high efficiency operation with minimal labor, the company says.