The new Toshiba Machine TUE-100 vertical boring and turning/milling centre from Nuneaton-based Leader CNC Technologies Ltd (
www.leadercnc.co.uk) has been designed to undertake heavy-duty cutting.
Indeed, it features the same ram section as Toshiba’s larger TUE models, as well as a cast wall-type column with wide cross-rails that provide high precision while allowing high-speed positioning and substantial material removal rates. Moreover, the cast bed supports both the table and column.
The 1,016mm-diameter table of the TUE-100 is supported by tapered roller bearings that accommodate heavy radial loads, while separate thrust bearings absorb the axial loads. The machine has a maximum cutting diameter and height
of 1,200 and 850mm respectively, and the maximum workpiece weight is 2,000kg.
Drive to the table is from a 45kW motor via a two-speed gearbox to give a speed range of 2-600rev/min and a maximum torque of 11,960Nm.
Rapid-traverse rates are 15m/min for the rail head and 12m/min for the ram; positioning accuracies are ±0.007mm and ±0.015mm for the Z and X axes respectively, and the repeatability is ±0.003mm for both axes.
The BT50 taper spindle is served by a 12-station ATC that accepts tools up to 350mm in diameter, 400mm long and weighing up to 40kg; control is provided by a Fanuc- 0iTD CNC.
The TUE-100 can also be used in manual mode, with table jogging, table rotation, axis feed and table speed/feed over-ride switches.
Options include different tool-holder types, a variety of hard- and soft-jaw sets, X-axis linear-scale feedback, automatic tool measurement, spindle probes, various control options and an ATC jib crane for the manual loading of tools weighing up to 50kg.