Rafamet KCF 320 / 350 metal lathe

faceplate diameter 3200 mm
swing diameter 3500 mm
turning height 2200 mm
range L-W-H 7730 x 6240 x 6700 mm
control Typ 840 D sl
voltage 3 x 400 V
frequency 50 Hz
turning speeds 0,8 - 40 U/min
max. turning diameter 3500 mm
total power requirement 51 kW
weight of the machine ca. 86 t
Technical specifications
Machine type: CNC vertical lathe
Manufacturer: Rafamet
Year of manufacture: 1973 conventional
General overhaul with control retrofit 2010
Control upgrade 2016
Control: Siemens 840 D Sl
Condition: very good

faceplate
Turning diameter of the faceplate 3,200 mm
Number of rotation stages of the face plate 3 (infinitely variable)
Speed ??ranges of the faceplate 0.8 - 40 rpm
Level I 0.8 – 3 rpm
Level II 0.8 - 11 rpm
Level III 0.8 – 40 rpm

processing of workpieces
Max. turning diameter 3,500 mm
Max. turning height of the workpieces above the faceplate 2,200 mm

vertical supports
Smallest axis distance between the vertical supports 470 mm
Largest ram travel of the left vertical support 985 mm
Largest ram travel of the right vertical support 985 mm
Axis Feeds - Infinitely variable feed
Max.: X1.2 3m/min
max.: z1.2 2.5 m/min
Plunger cannot be pivoted

Support — crossbar
Rapid feed of the cross beam 600 mm/min
Larger distance of the cross beam to the faceplate 2,300 mm

load sizes
+Permissible turning force when turning workpieces with a
turning diameter of 2,000 mm and a turning speed
of 20 m/min. 8,000kg

+Largest chip cross-section for workpieces made of steel Fz = 50 kg/mm²
at a turning speed of 20 m/min for all supports 45 mm²

+Largest chip cross-section for workpieces made of steel Fz = 50 kg/mm²
at a rotation speed of 20 m/min for a vertical support
with max. plunger length 985 mm 2.5 mm²

+Largest chip cross-section for cast iron workpieces HB = 160 kg/mm²
at a turning speed of 20 m/min for all supports 120 mm²

+Largest chip cross-section for cast iron workpieces HB = 160 kg/mm²
at a rotation speed of 20 m/min for a vertical support
with max. plunger length 985 mm 22.5 mm²

+Largest permitted workpiece weight at 0.8 - 3.15 rpm 17,500 kg

+Largest permitted workpiece weight at 4 - 40 rpm 7,500 kg


electric motors
Main drive motor power and revolutions 51 kW
Power of the feed motors of:
- Vertical support beam (2 pieces) 16 Nm (gear 1:10)
- Tappet (2 pieces) 16 Nm (gear 1:12)
Power and revolutions of the drive motor
of the hydraulic pumps (2 pieces) 3kW - 1,500 rpm
Power and revolutions of the clamp hydraulic motor
of the vertical support beam 1.5 kW - 1,500 rpm
Power and rotation for crossbar adjustment 15 kW - 1500 rpm

3.5 Information on the compressed air supply and other consumables
Compressed air connection: 6 bar free of oil and water

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







Tool:
Capto 60 recording
Not powered



front panel

Turning diameter of the front plate 3,200 mm

Clamping disc diameter 3,400 mm

Number of rotation levels of the front panel 3 (continuously adjustable)

Front panel speed ranges 0.8 - 40 rpm

Level I 0.8 - 3 rpm

Level II 0.8 - 11 rpm

Level III 0.8 - 40 rpm



processing of workpieces

Max. turning diameter 3,500 mm

Max. turning height of the workpieces above the front panel 2,200 mm


Vertical supports

Smallest center distance between the vertical supports 470 mm

Largest glide path of the left vertical support 985 mm

Maximum glide path of the right vertical support 985 mm

Axis feed - stepless feed

max.: X1.2 3m/min

max.: z1.2 2.5 m / min



Support - mirror

Fast feeding of the crossbeam 600 mm/min

Greater distance between the crossbar and the front panel 2,300 mm



loading sizes

• Permissible torque when turning workpieces with a

Turning diameter of 2,000 mm and turning speed

from 20 m / min. 8,000 kg

• Largest chip cross-section for workpieces made of steel Fz = 50 kg / mm2

at a speed of 20 m / min for all supports 45 mm2

• Largest chip cross-section for workpieces made of steel Fz = 50 kg / mm2

at a speed of 20 m / min for a vertical support

at max. piston length 985 mm 2.5 mm2

• Largest chip cross section for workpieces made of cast iron HB = 160 kg / mm2

at a speed of 20 m / min for all supports 120 mm2

• Largest chip cross section for workpieces made of cast iron HB = 160 kg / mm2

at a speed of 20 m / min for a vertical support

with max. piston length 985 mm 22.5 mm2

• Largest permissible workpiece weight at 0.8 - 3.15 rpm 17,500 kg

• Largest permissible workpiece weight at 4 - 40 rpm 7,500 kg



electric motors

Main drive motor power and revolutions 51 kW

Power of the feed motors of:

- Vertical support rod (2 pieces) 16 Nm (gear 1:10)

- Tappet (2 pieces) 16 Nm (gear 1:12)

Power and revolutions of the drive motor

of hydraulic pumps (2 pieces) 3 kW - 1,500 rpm

Power and revolutions of the clamp hydraulic motor

of the vertical support rod 1.5 kW - 1,500 rpm

Power and rotation to adjust the crossbar 15 kW - 1500 rpm



Information on compressed air supply and other consumables

Compressed air connection: 6 bar free of oil and water



Energy consumption, conditions

Voltage: 3 x 400V

Control Voltage: 24V

Frequency: 50Hz

Protection: 315 A



noise and waste emissions

Noise level under load 80.4 dB (A)




Sinumerik control: Type 840 D sl

Main dimensions and weight of the machine

Length 7,730mm

Width 6,240mm

Height: 6,700mm

Weight: 85,750 kg

Weight clamp disc: 7,500 kg


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