The “CL extrema” Machining Centre is a milling machine 5-axis on the tool and commanded by a NC, consisting of a structure with Cartesian axes and a mobile crossbeam:

• Moving crossbeam sliding on guides positioned on side pillars: "Y" longitudinal axis.
• The carriage of the “X” transversal axis, which moves the vertical arm for the “Z” axis, slides on the beam.
• The axis end is the fastening element of the operating unit.

  Separate worktop from the machine bases

• The machine’s sturdy structures, standardised and made of electro-welded steel, are designed and dimensioned to maintain maximum rigidity and stability even under significant dynamic stresses posed by high movement speed.
• Motion is transmitted by Brushless motors coupled to precision gear reducers with pinions fastened onto them and running on hardened and ground precision racks with helical teeth.
• The components slide on precision prismatic guides with recirculating ball runners.
• Full digital package: SIEMENS highly dynamic Drives and Brushless Servomotors.
• Measuring system with linear transducers: linear axes fitted with a direct and linear inductive measuring system.
• The crossbar is motorised on both ends: the electrically synchronised two-axis movement system (Gantry system) allows for precision performance even at very high speed and acceleration.
• The "Z" vertical axis is controlled by a double drive unit, both fitted with a brake, allowing for maximum torque adjustment to control the mass movement in both directions, zero clearance and precision positioning without balancing.

Dust protections:

• The runners have a double external protection consisting of special scrapers.
• All the guides and transmissions of the linear axes are covered with bellows.

Perimeter protections:

The perimeter closure ensures maximum operator safety during the machine’s operating cycle. It consists of panels forming an integral part of the structure on the back and sides.

At the front, 2 folding doors with manual opening and large inspection windows (laminated and tempered glass).  Optional feature of two doors at the back as well.

Universal head with 2 rotating axes at right angles and simultaneously controlled:

• The axes are driven via Brushless motors coupled to high-precision gear reducers with an automatic clearance recovery system.
• Axes A and C are fitted with a hydraulic brake to lock the axes in a fixed position. This provides greater rigidity during machining that does not require the interpolation of these axes.
• Nominal torque:
  - Without brakes:   A =   580 Nm         C =   770 Nm
  - With brakes:   A = 1600 Nm     C = 3080 Nm

• Direct measuring devices on rotary axes with angular inductive transducers.

Automatic tool change electrospindle:

• Mounted on the bi-rotary head and with liquid cooling
• Synchronous Motor Power 30 kW in S1 at a nominal speed of 6,800 rpm
• Torque = 42 Nm in S1 (max 71 Nm in S6)
• Max rotation 22,000 rpm
• Built-in tool change for HSK63-A connection
• Incremental encoder for rigid tapping

As an optional feature, the electric spindle can be designed for the axial flow of the liquid cooling lubricant

Or
 

• Synchronous Motor Power 42 kW in S1 at a nominal speed of 6,000 rpm
• Torque = 67 Nm in S1 (max 87 Nm in S6)
• Max rotation 18,000 rpm - lubricated-for-life bearings
• Max rotation 24,000 rpm - air-oil lubricated bearings
• Built-in tool change for HSK63-A connection
• Incremental encoder for rigid tapping
• The electricospindle is designed for the axial flow of the liquid cooling lubricant

Tool magazine:
It consists of a tool change magazine with a 24-position disc located on the side of the structure with automatic opening protection door.

Monolithic table:

Workpiece-holder table in monolithic cast iron, secured to the floor with 22mm T-slots with a 250mm centre distance and parallel to the "X" axis for the reference and clamping of the workpieces.

• Overall size of the worktop according to the machine strokes
• Thickness: 240 mm

The table can also be recessed in the floor via a specific foundation.

Or

Structural table

The workpiece-holder table is separate from the shoulders of the machine, featuring an electro-welded reticular structure. The joists have blocks with a machined worktop parallel to the strokes of axes X and Y. Complete with M10 threaded holes for positioning and fixing templates, any worktops or blocks of unprocessed material to be machined.

• Dimension: according to the machine strokes
• The height of the worktop from the floor is about 600 mm

HEIDENHAIN NUMERICAL CONTROL MOD. iTNC530 HSCI:
HR410 PORTABLE KEYPAD with electronic handwheel, 3-metre coiled cable or 10-metre non-coiled cable.

Or as an alternative:

SIEMENS NUMERICAL CONTROL mod. 840D sl:

SINUMERIK HT2 portable terminal

• Minimal tool lubrication device
• Device used to measure the tool and requalify the origin of the head rotating axes
• Tool setter laser
• Radio probe
• Ioniser for blowing air
• 2 Swarf conveyor belts
• Liquid filtration and recirculation system
• Closure of the machine roof
• Safety system to detect collisions