BA 711 space and BA 721 space for heavy machining of cast iron, cast steel or steel
“Like our previous BA 7 series machining centers, these machines are characterized by their stable monoblock design, high axis speeds and the high performance of the spindles,” explains M. Kreuzberger. All three main axes are driven by robust ball screws. This means that the two new machines are also ideally suited for medium- and large-scale production of large, complex components.
The “space” suffix on the new additions indicates that the vertical travel of the spindle block has been almost doubled from the previous 650 mm to 1,175 mm, and the Z axis also has a 90 mm longer travel. In the case of the BA 711 space with one spindle and one workpiece carrier on the swivel bridge, this means that a work envelope of 1,350 x 1,175 x 650 mm is available without the machine taking up more shop floor space.
The sister model BA 721 space has the same substantially expanded Y-travel of 1,175 mm and can therefore also machine longer components. However, due to the doubling of the number of spindles, the maximum available working space width per spindle is reduced to 650 mm, but productivity is almost twice as high thanks to the use of the second spindle.
BA W08 space machines for aluminum and non-magnetic materials
“For machining aluminum and other non-ferrous materials, we have a proven series with our BA W08 machining centers,” says P. Schneider. Thanks to the linear drive in the three main axes, these machines achieve accelerations of up to 2 g and travel speeds of up to 120 m/min. Similar to the development of the BA 7 series, the BA W08 series has also been expanded to include models with only one rotary axis. For these machines, the Y travel has been increased from 800 to 1,500 mm. As a result, the new BA W08-11 model with one spindle and one clamping bridge has a work envelope of 1,500 x 1,025 x 660 mm compared to the 800 x 1,025 x 660 mm of the standard two-spindle BA W08-22 model. Other new models include the BA W08-11 space and the BA W08-21.
The performance characteristics of the standard spindle for all models are 35 kW with 80 Nm of torque. The reliable design principles such as monoblock construction and box-in-box design of the spindle unit, which have proven to guarantee stability and precision, have also been adopted in the new BA W08 series machines.