The Hardinge GS 51 lathe features a compact design and collet-ready main spindle that are said to provide increased durability and workpiece accuracy. The A2-6 20C, 15-hp (11-kW) spindle provides speeds ranging to 5,000 rpm. The machine offers a 2" (51 mm) bar capacity and accommodates workpieces ranging to11.10" ( 284 mm) in diameter and 17.95" (456 mm) in length. The chuck size is 8".
The lathe features a 12-station vertical block-type turret, and a one-piece, cast iron, 45-degree base strategically ribbed for rigidity and durability. The X and Z-axis ballscrews, linear roller guides and guide trucks feature a large load rating with minimal friction for low heat and thermal growth, long machine life, maximum static and dynamic stiffness, and overall machining accuracy, the company says. The double-nut hardened and ground ballscrews are laser-calibrated and supported by heavy-duty ballscrew supports.
The lathe is controlled by a FANUC 32-bit 0i-TD CNC. Available options include live tooling, C axis, tailstock, chip conveyor, 280-psi through-turret coolant, an arm-type parts catcher with conveyor, and a tool touch probe.
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This machine can run for a long time without any operator intervention, and users can machine finished parts from slug stock or cast blanks while achieving the same high productivity as if they were machining from barstock, the company says.