CNC Turning Centers Designed for Multitasking

Hyundai-WIA’s L2100Y/SY series of CNC multitasking turning centers feature a wedge-type Y axis and BMT 65 (VDI 140) turret to complete complex milling and turning operations in a single setup.

Hyundai-WIA’s L2100Y/SY series of CNC multitasking turning centers feature a wedge-type Y axis and BMT 65 (VDI 140) turret to complete complex milling and turning operations in a single setup. The synchronized main spindle and subspindle enable high-precision machining of the front and back of cylindrical parts. The turning centers are designed for small- to medium-sized job shops but are capable of accommodating high-production environments, the company says.

 

The machines offer a 630-mm swing over the bed and a 300-mm swing over the carriage, as well as a maximum turning diameter of 335 mm and a maximum turning length of 463 mm (455 mm for the SY). The turning centers are equipped with a gearless 4,500-rpm, 8" main spindle. The spindle is said to deliver minimal noise and vibration for stable machining and durability. The 6" subspindle with C axis offers 0.001-degree indexing and is driven by the B-axis ballscrew and servomotor. Both spindles are controlled with the C axis. Contour machining with the C axis is also possible for machining outer shapes and pockets using live tools and the Y axis.

 

Critical structural components are composed of Meehanite cast iron to minimize deformation when performing heavy-duty cuts. To prevent thermal growth during machining, all axes are driven by high precision double-nut ballscrews connected directly to the servodrive motors without gears or belts. The machining centers are equipped with a 12-station BMT turret driven by a high-torque servomotor with a 0.4 sec. indexing time in either direction. The FANUC 32i-A series CNC features a 10.4" color LCD with Manual Guide i.

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Since its inception, the self-loading/unloading design of inverted vertical turning machines has evolved to include multitasking operations that augment its original task of turning. This article looks at ways to optimize the programming of these machines and to take advantage of the multiple operations available for workpiece processing.