Mobile gantry CNC 4-axis machining centre, designed for drilling, milling, threading and cutting at any angle from -90° to +90° on bars or pieces in aluminium, light alloys in general and steel. The mobile part of the machine mainly consists of a gantry equipped with precision motorisation rack. The 9 kW electrospindle with HSK- 63F tool connection is able to perform even heavy-duty machining with excellent, rapid and accurate results. A fixed tool magazine with 14 places is installed on the left-hand side of the machine. It can be fitted with a second 14-place magazine on the other side of the machine or replaced by a single 14-place motorised magazine which, with its own NC axis, follows the mobile gantry in the two work areas, reducing the required number of tools and tool holders and considerably optimising programming. The machine can be used in double mode, a work method that reduces machine stop times to a minimum as it allows workpiece change time (loading/unloading) to be run "while the machine is operating". Furthermore, different workpieces can be machined between the two work areas. The machine is equipped with a cabin covering of the gantry that not only protects the operator, but also reduces the noise impact.
1F = 1 face machining 5F = 5 faces machining
A spacious tool magazine with 14 places is installed on the side of the machine. The housing with automatic cover offers optimum protection for the toolholder cones from swarf and accidental knocks. To work in double operation mode, a second 14-place magazine can be added to the other side of the machine, managing an independent set of tools in each work area. As an alternative to the fixed magazines, a single 14-place motorised magazine with its own NC axis can be fitted, which follows the mobile gantry in the two work areas. This solution drastically reduces the time required for tool changes and optimises the required number of tools and toolholders.
The vice unit can ensure the correct and safe clamping of large aluminium, steel and light alloy profiles. The vice size and the long Y stroke of the electrospindle allow machining large profiles for all kinds of civil and industrial applications. Each unit slides on linear guides on machine surface. The positioning is managed by the X axis. Counterblocks can be mounted quickly and accurately, making the machine extremely versatile. The vice unit can be configured with a double hold-down device, to machine two profiles in parallel.
A retractable reference stop is installed on the left-hand side of each of the two work areas. In this configuration, up to two workpieces can be machined in multi-piece or double operation mode. The right stop can be simply moved to the end of the machine for machining extra-long workpieces. With similar operations and using up to 4 additional optional stops, the machine demonstrates all its working versatility. A laser system is available for accurately positioning the workpieces on the work surface; this reads each profile and sets the reference without the need for mechanical stops.
If necessary, it is possible to install additional vices beyond the standard machine equipment. In this way, it is possible to ensure perfect clamping of bars or bar sections even in complex cases in terms of number, size or types of profiles to be machined. Moreover, the additional vices allow greater versatility in vice position depending on the length of the workpieces and the machining to be performed.
The machine can be optionally equipped with an electronic device that automatically corrects workpiece dimensional errors in length, width and height. In this way, the accuracy of the machine is not influenced by the differences between theoretic and actual workpiece dimensions during machining. This device accurately probes the rough workpiece in several positions, correcting the machining along its whole length, even with deformed or warped profiles.
