Vertical turning centres' capacity extended

Pick-up spindle type vertical turning centres, with a 49kW main spindle, can now turn, mill and drill heavier workpieces up to 340mm diameter.

Emag has introduced its VSC 7 Turning Centres for larger, heavier 340mm diameter workpieces.

The VSC 7 complements the Emag VL 3 and VL 5 Standard Turning Centres, so subcontractors and Tier-1 suppliers can now also profit from the many advantages offered by the vertical turning centres.

In a report to Manufacturingtalk, Emag said that its VSC 7 series offers the highest quality and precision with the benefits of a low capital outlay, minimum 'footprint' and an optimal economic performance ratio.

** Standardisation - the VSC 7 Vertical Turning Centre employs the same design and equipment content to the well-proven vertical turning centres of the VSC series from Emag.

For example, they feature the usual Mineralit polymer granite machine base, which has excellent vibration damping properties.

These properties ensure extended tool life and a better surface finish.

The machine base carries the over-head gantry slide unit with integrated main spindle unit to guarantee symmetrical force distribution and a high degree of rigidity, resulting in consistently high precision.

A twin-circuit cooling system maintains thermal consistency in the machine's stucture by maintaining the temperature of the main machine modules - machine base, main spindle motor and bearings and turret - at ambient temperature.

It also maintains the electrical enclosure at a steady 20 deg C.

** Milling and drilling - milling and drilling operations demand high rigidity and absolute minimal vibration.

To achieve this, the VSC 7 has the following features.

* A main spindle with 160mm diameter front bearings.

* A quill unit supported in a hydrostatic bearing.

* A sturdy tool turret with VDI 50 receptor pockets.

The turret accommodates 12 tools or, alternatively, up to 12 live tools.

A chuck of 400mm diameter takes workpieces of up to 340mm diameter and 160mm height.

The main spindle motor has a power rating of 49kW, max torque of 775Nm and reaches speeds of up to 3,400 rev/min.

** Workpiece loading - the workpieces are loaded by so called L-automation with flexible carrier prisms.

This system is driven and positioned accurately by a NC axis and allows for varying workpieces to be conveyed to the pick-up station without the need for resetting during change-over.

Two machines can be interlinked by component turnover station and thus converted into a flexible manufacturing cell for complete machining of components in two operations.

In order to ensure that workpiece quality is maintained within the required tolerances, a measuring probe - located outside the machining area - can be integrated into the process, even during unmanned even during unmanned production.

A combination of well-proven modules - standard modules - and a limited number of standard optional components, allows Emag to deliver the VSC 7 within just a few weeks.

Thereby, bringing to sub-contractors and Tier 1 suppliers, the optimal benefits of consistent high process capability, high performance and productivity, together with a high degree of flexibility at a minimal cost.

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