4-axis CNC machining centre used for the machining of bars or aluminium, PVC, light alloys in general and steel pieces. It is equipped with two operating modes: a single work area for bars up to 7 m length or two independent work areas in double mode. The machine is equipped with independent motorized vices that allow positioning the vices in concurrent operation time during the operation in dynamic pendular mode. The 4th axis allows the electrospindle to continuously rotate to NC from -120° to +120° on horizontal axis, to perform the work on the upper side and on all the lateral sides of the profile. It is equipped with a 10-place tool magazine, on the X axis gantry, able to host also one milling disc. It also has a mobile work table that facilitates the workpiece loading/unloading operation and significantly increases the workable section.
The 8.5 kW electrospindle in S1 with high torque also enables performing the heavy machining typical of the industrial sector. A 10.5 kW electrospindle with encoder for rigid tapping is available as optional. Electrospindle rotation along B axis allows working on 3 sides of the profile, with no need for repositioning. Normally used for machining extruded aluminium profiles, it also enables machining steel profiles thanks to the twin tank lubrication system: one with minimal oil diffusion, and the other with oil emulsion spray.
The servocontrolled clamps, each with their own motor, can independently position themselves on the working field. The CNC simultaneously manages the handling of the clamps and the head of the electrospindle in the two different working fields in double operation. This enables significant increases in productivity. The use of absolute reference axes enables reducing the time for machine initialisation at each restart.
Integrated with the machine’s aesthetics and design, thanks to the perforated sheet metal for transparency and lightness, the tunnel opens and closes as needed. As its length can be reduced when not in use, it helps save space in the workshop. The outlet for the chip conveyor belt and its motor are built into the lower section, in view of an aesthetic and functional design.
The innovative machining mode allows reducing machine stop times during loading and unloading of the pieces to be worked. The system allows, in the two distinct and independent working areas, to simultaneously carry out the loading/unloading of extruded profiles on one side, and machining of workpieces on the other, with different lengths and/or codes. This solution makes the machine very flexible, which is highly suitable for the field of window/door frames and for small work orders, where machining is required for small lots of different pieces.