RAFAMET KCI 320/400N CNC vertical turret lathe

RAFAMET KCI 320/400N CNC vertical turret lathe manufactured in 2011 in Poland, can perform complex production programmes on large-size workpieces, thanks to one turning head and three milling heads set at different angles. The machine, with its compact frame structure made of high-quality grey cast iron, is distinguished by its high geometric stability, high rigidity and excellent vibration damping.

The CNC vertical turret lathe KCI 320/400N performs precision turning, milling, drilling and boring of cylindrical, conical and curved surfaces with the aid of the applied heads. One of them is a special milling head (offset), used to perform drilling and milling operations with the position of the tool axis offset from the spindle axis in a direction parallel to the slide travel plane. On the other hand, the turning head allows to mount CAPTO turning tools in horizontal and vertical sockets and ensures coolant supply to/through the cutting tool.

The entire working area of the RAFAMET CNC lathe has been fully illuminated and enclosed with guards to ensure safety of use. Inside it there is a large cast-iron table with a 3200 mm diameter rolling bearing and a TV camera system connected to the monitors, allowing for tracking the progress of the production process. All process parameters are programmed in an easy-to-use SIEMENS SINUMERIK 840D SOLUTION LINE CNC controller with touchscreen.

Tools stored in the 5-position (right) and 3-position (left) tool magazine of the lathe are measured and calibrated both before and after machining by a RENISHAW measuring sensor mounted under the support beam. The sensor, which takes into account the tool’s mounting accuracy in the chuck and the manufacturing tolerance of the cutting inserts, is designed to significantly improve machining accuracy, as well as determining tool wear, determining the remaining time of use and updating tool dimensions.

Technical specifications of the RAFAMET KCI 320/400N vertical turret lathe

General data

• maximum workpiece weight: 50 t
• maximum workpiece diameter: ø 4000 mm
• work table diameter: ø 3200 mm
• maximum work table rotational speed: 110 rpm
• tool magazine positions (right): 5
• tool magazine positions (left): 3
• number of work table jaws (4 pcs.) with ratchet spanner (1 pcs.)
• work table drive motor power: 121 kW
• power supply: 3x 400 V; 50 Hz

Fixed milling head 90° PIBOMULTI FEC50-30

• holder: ISO 50
• maximum output speed: 2000 rpm
• maximum output torque: 1500 Nm
• ratio: i=1:1
• power: 30 kW
• automatic tool clamping (clamping and loosening)
• automatic tool change
• external tool cooling
• internal tool cooling 20 bar

Universal milling head ± 120° PIBOMULTI FTARH50-20

• holder: ISO 50
• maximum output speed 1800 rpm
• maximum output torque: 600 Nm
• ratio: i=1:1
• power: 20 kW
• automatic tool clamping
• automatic tool change
• external tool cooling
• B axis positioning ± 120° every 1°

Special milling head (offset)

• maximum speed: 2000 rpm
• maximum power: 25 kW
• tool axis offset from spindle axis: 100 mm
• tube length: L in the range 500-600 mm
• external cooling of cutting tools

Equipment of the KCI 320 400N vertical turret lathe

• CNC control: SIEMENS SINUMERIK 840D SOLUTION LINE
• S1 axis (table positioning measurement)
• C axis (table angle positioning)
• W axis (position measurement of support beam)
• universal vertical/horizontal turning head for CAPTO tool system with slide adjustment (semi-automatic tool change)
• slide and slide linear scales: HEIDENHAIN
• cutting tool measuring sensor: RENISHAW
• grinding attachment: SFJ
• vertical right-hand slide for lathe-drill-milling, slide extension 2100 mm
• support beam (movable)
• sliding and locking mechanism of support beam
• telescopic covers for slides of support beam and slides of stands under the support beam
• lathe vice for shank knives
• free-standing control panel
• slider mechanism cover
• hydraulic power unit
• circulating lubrication power unit
• malfunction diagnostics with operating procedures on the CNC control screen
• industrial camera system
• mechanical chip conveyor belt
• bed swarf guard with swarf chute
• tool water cooling system (on/off the cutting tool)
• pneumatic system
• mechanically extending front guards
• workspace illumination
• free-standing platform for operating the right vertical support with control panel
• ladder, handrails and guard rails
• control cabinet
• operating status indicator (lamp)
• coolant filtration
• wiring
• sealing table and guards
• spanners for operating and assembling the machine tool
• accessories for setting up and fixing the machine tool on the foundation
• DTR – technical and operational documentation
• documentation of operation and programming of the CNC system