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PIETRO CARNAGHI AC 20 TM 1800

Technical Details:

Face plate diameter: 1800 mm
Swing diameter: 2000 mm
Turning height: 1270 / 1120 mm
CNC control: SIEMENS 840 D
Max. workpiece weight: 5000 kg
Ram dimensions: 250 x 250 mm
Table rotation speed range: 1 - 320 rpm
Cross rail adjustment: 400 mm
Ram support - horizontal travel (X): -2770 / +2275 mm
Ram support - vertical travel (Z): 1250 mm
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C-axis: 360° (0.001° increments)
Milling drive: 37 kW
Milling speed range: 10 - 3000 rpm
Table drive power: 100 kW
Torque: 31,784 Nm
Feed rate range (X/Z): 0.1 - 15,000 mm/min
Total power requirement: kW
Machine weight approx.: 55 t
Space requirement approx.: m

Additional Information:

Used CNC vertical turning lathe for turning, drilling, and milling operations.
The machine was first commissioned in 2011 and meticulously maintained by the previous owner.
It was sold due to a plant closure.

CNC Control: Siemens Sinumerik 840 D
Number of NC axes: 4 (X, Z, C, cross rail adjustment)
Max. workpiece diameter: 2040 mm
Max. workpiece height: 1270 mm
Ram travel: 1250 mm
Max. workpiece weight: 5000 kg (per pallet/chuck)
Spindle speed range: 1.0 - 320 rpm
Spindle drive power: 100 kW
Drilling/Milling spindle: 37 kW
Cross rail travel: 2 steps of 200 mm each
Total connected electrical load: 218 kVA

Travel:
X-axis: -1650 to +2165 mm
Z-axis: 1250 mm
Rapid traverse X-/Z-axis: 15 m/min
Number of tool magazine positions:
- 80 positions in chain magazine, including 60x HSK 100 and 20x Capto C6
- 12-position disc magazine for turning tool holders and attachment heads
Coolant system with filtration and circulation unit
Chip conveyor
Oil mist extraction unit

1 pallet with claw boxes, diameter 1800 mm
1 hydraulic chuck with base jaws, diameter 1800 mm
Various drilling and milling heads
2 touch probes
Multiple turning tool holders

Special feature:
Pallet changer with two stations, equipped with one face plate Ø1800 mm and one six-jaw compensating chuck with mechanical centrifugal force compensation Ø1800 mm.

Note:
The machine is set in a pit.

Condition Description:
About six months ago, the cross roller bearing was replaced on the Carnaghi.
All Siemens components in the control cabinet were also completely renewed at the end of 2023.
Furthermore, the machine features a touch probe for tool measurement and an external Renishaw probe for workpiece measurement.
As a special feature, there is also a probe mounted on the Z-axis (Z1-axis).
This provides advantages in accuracy and time as the tool does not need to be removed for measurement.
Currently, this probe is deactivated and should be serviced upon recommissioning.
Additionally, the machine has a Rotomors six-jaw compensating chuck with centrifugal force compensation, which was completely overhauled in 2020/21.

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