CNC turning centre offers high thermal stability

Pre-stressed hydraulic concrete bed technology is used in the 4- or 6-axis MAG +FMS+ CNC turning centre to ensure very high thermal and mechanical stability

The MAG +FMS+ NDM 200 turning centre has a pre-stressed hydraulic concrete bed that guarantees phenomenal thermal and mechanical stability, said the company. To extend this stability further the NDM is floor mounted on only three foundation blocks to eliminate deformation during alignment. Available as a 4- or 6-axis machine with upper or lower turrets, the NDM can be combined with driven tools and the option of Y-axis for the upper turrets to deliver ‘one-hit’ machining.

* NDM 200 – the NDM 200 offers a variety of options such as one or two guide way systems with the main drive available in conventional design or as a motor spindle.

The tailstock can be fitted to the upper or lower guide ways, with electric or hydraulic actuation as a choice.

The NDM 200 can have a second main spindle either in a double-spindle or sub-spindle version.

Steadies in fixed or travelling configuration can be fitted for machining long shafts of small diameter.

For large batch production, the NDM 200 offers synchronised machining using its its twin spindle configuration.

MAG told manufacturingtalk that the synchronised machining on the NDM 200 can deliver a productivity increase of 70% to 90% with the additional benefit of a small machine footprint.

The NDM 200 is suited to machining parts up to 200mm diameter and 800mm in length.

The NDM 200 has been designed for automation with gantry loading from above or robot loading from the front.

An automatic unloading device for bar feeding applications is available as is unloading of the sub-spindle prior to taking the work piece from the main spindle – all without operator intervention.

The MAG +FMS+ NDM 200 has a swing diameter over the X-slide and bed of 350mm and 550mm respectively and the tool turrets can accommodate up to 12 tool positions for enhanced productivity.

* Boehringer HTC 200M – the HTC range of 2-axis and driven tool turning centres can machine workpieces up to 1m in length and is based on the same principle of productivity, rigidity and flexibility as the MAG +FMS+ NDM 200.

Despite its compact footprint the HTC 200M has an impressive range of chucking capabilities and a generous spindle bore for large bar work, said MAG Boehringer.

The large capacity 520mm turning length and 324mm diameter with swing diameter over bed and carriage of 620mm and 270mm respectively is enclosed in a small footprint that is especially valuable in manufacturing environments with limited floor space.

To eliminate secondary machining the 12 driven tool stations on the HTC 200M allow milling, drilling and turning in a single set-up – eliminating secondary machining operations.

With extremely quick indexing and traverse rates the HTC 200M significantly reduces chip-to-chip time, said MAG Boehringer A one-piece cast iron 45 deg slanted machine bed gives rigidity and stability, which enhance workpiece surface finish and tool life.

The design enables heavier cuts and faster production times with no vibration even on hard materials.

Wider spans between the linear guideways on the X- and Z-axis give stability and rigidity during high cutting loads.

The HTC performs continuous production, offers user-friendliness and allows customised set-up.

The HTC machine range has a comprehensive range of options such as the following.

* Bar feeders.

* Chip conveyor systems.

* High pressure coolant.

* Tailstocks.

* Automatic toolsetting for confidence in detecting tool wear and breakage.

The GE Fanuc 21i-TB CNC has been incorporated into the HTC 200M.

Its reliability derives from fibre technology incorporated in an adjustable pendant unit that makes the CNC even more accessible and ergonomically comfortable for the operator, said MAG Boehringer.

MAG commented that for the optimum machining solution to be found every time, the workpieces, production conditions, output, space requirements, and automation situation are taken into account in the evaluation of all of its customers.

Basically, all parts up to a certain size can be machined horizontally.

However, MAG said it believed that the ‘natural’ position of a workpiece provides the best conditions for optimum handling and machining.

This enables the workpiece to be transported more easily and for machining conditions to be optimised.

For many parts that cross over between vertical and horizontal machining MAG provides solutions for all scenarios.

Often the machine type depends on the customer’s automation priorities.

If all aspects of the workpiece and production situation have been considered and compared in the consultation phase, the best solution for the identified workpiece arises – and this is exactly where the advantages start for customers of MAG.

All of the machining and technological know-how for both machining options – horizontal and vertical – comes from a single source, with global support, said MAG.