Offering an output increase of at least 10%, when compared with previous machines, universal lathes with a linear motor powered X-axis include the fastest turret in the market.
DMG (UK) has introduced the CTX 320 and 420 linear universal CNC lathes that offer a production output of at least 10% higher than conventional CNC machines. The increase results from using a dynamic linear drive in the turret carriage X-axis and the high speed Siemens 840D Powerline CNC with ShopTurn. ShopTurn is a Windows-based, shop floor programming system that includes extensive 3D functions.

It controls the fastest turret in the market, a fast tailstock as well as direct measuring systems in all axes.

The linear drive in the X-axis produces high rapid traverse speeds and accelerations/decelerations.

Contact-free power transfer makes for a wear-free construction of the drive train - a benefit particularly in tough, multi-shift operation.

The Siemens 840D CNC Powerline stands for a performance increase of over 100% in the CNC and PLC areas.

The ShopTurn user interface and 3D functions allows complex workpieces with face and shell machining operations to be generated very quickly, using interactive, context-sensitive operator guidance and integrated 3D simulation.

These functions can be used without any DIN/ISO knowledge on the part of the operator.

Additionally, ShopTurn makes machine set-up easier through intuitive tool management for the turret and practice-orientated support for workpiece introduction and measurement.

The performance of the integrated spindle drive, offering impressive acceleration/deceleration capabilities, is no less impressive.

It takes only 1 sec to go from zero to 5000 rpm, and again, to return to zero.

Main spindle torque is 270Nm (at 100% duty cycle) for the CTX 420 - some 12.5% higher than its predecessor.

DMG offers the CTX 320/320 in a number of configurations.

These begin with a 12-station turret for static tools and a tailstock.

There is a version with 12 driven tooling stations in the turret, also a version with driven tools in a Y-axis and machines with a counter-spindle, driven tooling and an optional Y-axis can also be supplied.

Swing diameters on the CTX 320 and 420 linear are 400mm and 680mm respectively.

X-axis travels are 450mm and 635mm.

A hydraulically powered moving tailstock is an option, with 0.5m/min traverse speed or a NC tailstock has a traverse up to 20m/min.

A fast indexing turret has an indexing time, station-to-station, of 0.15 sec.

In all, the CTX linear series offer idle time reductions of up to 40%.

Other details include: CTX 320 linear and 420 linear, respectively: drive outputs are 16 and 25kW; rapid traverse in X, Y and Z are 60, 10 and 45m/min; bar diameters are 50mm and 65mm; chuck diameters (Y-axis/counter spindle) are 210mm (160mm) and 260mm (185mm); longitudinal travel is 450mm and 635mm and Y-axis (optional) is +/-32mm and +/-40mm.