Giant 5-axis machining centre uses 27 per cent less power

The head is of universal, A- and C-axis design with up to 90 kW of spindle power, 6,000 rpm and 4,000 Nm of torque. The 360-degree C-axis has a positioning accuracy of 3 seconds of arc, while A-axis positioning is from + 90 to - 90 degrees to within 2 seconds of arc. Alternative heads can be exchanged, including a horizontal type and a high-speed model capable of 25,000 rpm for carrying out finishing operations.

The 150-position tool magazine accepts different tool tapers (HSK, SK, BT, etc) for automatic change to and from the different heads, while angle heads and turning heads may be similarly accommodated.

Despite its large size, the machine is highly dynamic with 2 m/s2 acceleration up to 40 m/min rapids. Positioning accuracy is similarly impressive at ± 0.01 mm over two metres. The easy-to-operate, ride-along control cabinet with vertical movement offers operators optimal usability. Control is by the Siemens 840D solutionline CNC.

Anton Müller, Managing Director of SHW Werkzeugmaschinen GmbH, said, PowerForce 8 is the largest energy-efficient machine we have built.

It incorporates the latest developments in drive technology and smart controls to achieve energy savings of up to 66,000 kWh per annum, depending on usage.

Hydraulic components have been replaced to reduce noise and heat and obviate leakage, leading to further energy savings as well as a better working environment.

Overall, energy savings of up to 27 per cent can be achieved compared with conventional machines of equivalent capacity.