Bar Feeds Bar Feeders are perhaps the most common automation accessories used in metalworking. Generally applied to turning machines, they are designed to deliver continuous supply of raw machining stock in the form of round, hex, square, and extruded shapes for the manufacture of parts of rotation. They are able to accommodate stock of 20, 12, 6 and 4 foot lengths, the bar feeder is attached to the machine tool at its headstock end. There are two common types of bar feeds available: hydrostatic and hydrodynamic. In hydrostatic bar feeds, the bar rests in a series of channels that clamp down on the top and bottom of the stock to hold it in place. In the hydrodynamic bar feeds, the stock is held in a feed tube surrounded by pressurized oil This allows for faster spindle speeds but it also increases change-over time from one bar diameter to another. Some bar feeders are being equipped with "magazine" storage units that are capable or significantly increasing the amount of stock that can be unattended through the machine tool. In some "lights out" untended machining operations these magazine feeders can supply enough stock for a machine to run a full shift without intervention. Historically bar feeders are applied in single spindle turning machine tools, multi-spindle machines and some rotary transfer machines. Several machine builders have recently incorporated the bar feed on vertical machining centers. Liberty Machinery Company buys and sells used Bar Feeds, classified as B1103. Used Bar Feeds Equipment in stock: LNS, LNS Quick Load See our Used Bar Feeds Equipment For Sale Back