Zone: Turning Machines

OVERVIEW: “Turning” defines the work that is traditionally done on a lathe. As lathes have grown in sophistication, some of these machines have been given different names. “Turning centers” is a term sometimes applied to machines with particularly sophisticated capabilities related to secondary spindles and/or rotating tools for milling and drilling. Another term, “turn/mill machines,” describes machines that can be thought of as being just as capable at milling and drilling parts as they are at turning. In turning, unlike in milling or drilling, the workpiece spins while the cutting tool does not. The cutting tool feeds along the length or diameter of the rotating part. The workpiece in turning can be held in a chuck or collet, to name two of the more common workholding methods. The turning machine may also include spindles for the cutting tools to accomplish non-turning operations such as milling and drilling. If this is the case, the machine stops the workpiece from spinning in order to perform these operations within the same machining cycle as the turning work. In fact, for some parts, the milling and drilling capabilities may be used so extensively that a non-turned, non-round part might also be produced on this type of machine. Lathes, turning centers and turn-mill machines can have horizontal or vertical spindles. Horizontal spindles are more common. If the machine has a vertical spindle, then the spindle may locate below or above the machine. If the workpiece rests on a table driven by the spindle, then this machine is generally called a vertical turret lathe, or VTL. If the workpiece is held from above by the vertical spindle, then this type of turning machine is generally called an inverted vertical lathe.

Featured Zone Content

Modular Automation Package for Turning Machines

Emco Maier has partnered with UltraTech Machinery to offer a modular robotic automation cell that provides flexible part load/unload for its turning machines....MORE


Hard Turning’s Strong Finish

With the right methodology in place, this alternative to grinding can often save money while adequately meeting surface finish requirements....MORE

The Upside of Vertical Turning

Vertical turning centers that use the main spindle to load and unload themselves are finding increasing acceptance as multitasking capabilities make them efficient processing centers for producing chucked parts....MORE

C-Turn CNC Teach-Style Lathes with Large Spindle Bore and Double Chuck System

C-Turn CNC lathes from Kaast are available with a large spindle bore (6”, 9”, 12” or 14”) and double chuck system. ...MORE

Nakamura-Tome NTRX-300 multitasking turning center

Twin-Spindle Turning Center Offers Large Machining Area

Methods Machine Tools introduces the Nakamura-Tome NTRX-300, a multitasking turning center capable of complete part machining in one operation with a built-in automated load/unload system and operator recognition management software. ...MORE

Hyundai Wia L2100SY multitasking lathe

Multitasking Turning Center Performs Complex Machining

Hyundai Wia’s L2100SY multitasking wedge-type Y-axis CNC turning center features an 8" chuck on the main spindle and a 6" chuck on the subspindle to support complex machining in a single setup. ...MORE

NLX 6000 from DMG MORI

Universal Turning Machine Accommodates Long Workpieces

DMG MORI’s NLX 6000|2000, which is the successor of DMG MORI’s SL series, is designed for applications in the energy and oil industries as well as hydraulic and mechanical engineering. ...MORE

Burkhardt+Weber MCT machining center

Large Turn-Mill’s Tool Adapter Promotes Reliable Precision

Burkhardt+Weber’s multitasking MCT machining center series includes five machine sizes for parts requiring vertical or horizontal CNC-turning tasks ranging in size from 300 to 2,000 mm (11.8" to 78.74") in diameter. ...MORE

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