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RAFAMET KCF 320 / 350

Chuck diameter 3,200 mm
Swing diameter 3,500 mm
Turning height 2,200 mm
Dimensions (L x W x H) 7,730 x 6,240 x 6,700 mm
Control type 840 D sl
Voltage 3 x 400 V
Frequency 50 Hz
Speed 0.8 - 40 rpm
Max. turning diameter 3,500 mm
Total power requirement 51 kW
Machine weight approx. 86 t
Technical specifications

Machine type: CNC vertical turning lathe
Manufacturer: Rafamet
Year of construction: 1973 (conventional)
Completely overhauled and retrofitted with new control system 2010
Control system upgrade 2016
Control: Siemens 840 D Sl
Condition: Very good

Chuck
Turning diameter of chuck: 3,200 mm
Number of speed ranges for chuck: 3 (infinitely variable)
Speed ranges for chuck: 0.8 - 40 rpm
Level I: 0.8 – 3 rpm
Level II: 0.8 – 11 rpm
Level III: 0.8 – 40 rpm

Workpiece machining
Max. turning diameter: 3,500 mm
Max. turning height above chuck: 2,200 mm

Vertical saddles
Minimum axis distance between vertical saddles: 470 mm
Max. ram travel of left vertical saddle: 985 mm
Max. ram travel of right vertical saddle: 985 mm
Axis feeds – infinitely variable
max.: X1,2 3 m/min
max.: Z1,2 2.5 m/min
Rams not swiveling

Crossrail
Rapid traverse of crossrail: 600 mm/min
Max. distance between crossrail and chuck: 2,300 mm

Load capacities
+Permissible torque for turning workpieces with a diameter of 2,000 mm at 20 m/min: 8,000 kg

+Maximum chip section for steel workpieces Fz = 50 kg/mm² at 20 m/min, for all saddles: 45 mm²

+Maximum chip section for steel workpieces Fz = 50 kg/mm² at 20 m/min, for one vertical saddle at max. ram extension 985 mm: 2.5 mm²

+Maximum chip section for cast iron workpieces HB = 160 kg/mm² at 20 m/min, for all saddles: 120 mm²

+Maximum chip section for cast iron workpieces HB = 160 kg/mm² at 20 m/min, for one vertical saddle at max. ram extension 985 mm: 22.5 mm²

+Maximum permissible workpiece weight at 0.8 - 3.15 rpm: 17,500 kg

+Maximum permissible workpiece weight at 4 - 40 rpm: 7,500 kg


Electric motors
Power and speed of main drive motor: 51 kW
Feed motor power:
- Vertical saddle beams (2 units): 16 Nm (gearbox 1:10)
- Rams (2 units): 16 Nm (gearbox 1:12)
Power and speed of hydraulic pump drive motors (2 units): 3 kW - 1,500 rpm
Power and speed of clamping hydraulic motor for vertical saddle beam: 1.5 kW - 1,500 rpm
Power and speed for crossrail drive: 15 kW – 1,500 rpm

Compressed air supply and other resources
Compressed air connection: 6 bar, oil- and water-free

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Energy consumption, requirements
Voltage: 3 x 400 V
Control voltage: 24 V
Frequency: 50 Hz
Protection: 315 A
Main dimensions and weight of the machine
Length: 7,730 mm
Width: 6,240 mm
Height: 6,700 mm
Weight: 85,750 kg

Tooling:
Capto C6 holder
Non-driven

Faceplate
Faceplate turning diameter: 3,200 mm
Clamping plate diameter: 3,400 mm
Number of faceplate speed ranges: 3 (infinitely variable)

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