FINN-POWER LP6 punch laser machine was manufactured in 2008 in Finland
by FINN-POWER OY. The machine was used for machining AISI 304 and AISI
316 stainless steel sheet metal. Since its purchase, it has been
regularly serviced by the manufacturer and has undergone annual
technical inspections.
The FINN-POWER LP6 is designed for the comprehensive machining of
sheet metal with a maximum thickness of 8 mm. It enables both punching
and laser cutting in a single work cycle, reducing the need for
additional operations on other machines. The combination of both these
technologies in a single system speeds up task completion times and
increases the efficiency of the production process.
The punching process is performed by means of a hydraulic cylinder,
whose stroke and speed are fully numerically controlled. The ability
to programme the upper stroke limit enables the punch movement to be
precisely adjusted to the thickness of the workpiece, whilst
adjustment of the cylinder’s lower position enables compensation of
the tool lenght without the need for additional shims. The punching
system is equipped with an automatic overload protection mechanism,
which protects the machine’s components during intensive use.
The hydraulic punching cylinder cooperates with a 20-station turret
with interchangeable tool holders. This solution allows for flexible
configuration of the head according to current production
requirements. Automatic tool change takes place by rotating the turret
along the shortest path to the programmed tool. During punching, the
head is mechanically locked in place by pneumatic conical positioning
pins. The CNC Index Tool system enables tools to be rotated
automatically to any programmed angle. The indexing mechanism operates
simultaneously with the movement of the X and Y axes, meaning that
punching, stamping and nibbling at various angles can be carried out
without the need for manual tool change.
The FINN POWER LP6 punch laser combination machine is equipped with a
ROFIN DC025 laser source with a power of 2,5 kW. It generates a
high-quality beam with stable parameters, which is delivered to the
cutting head via a closed, water-cooled, optical system with
overpressure. This solution protects the beam from dust and other
contaminants, ensuring the highest cutting quality. The cutting head
features a quick-change system for 5″ and 7.5″ lenses and moves
along the vertical axis using a servo drive. The autofocus function
automatically adjusts the focal position according to the thickness of
the material. All cutting process parameters, such as laser power,
nozzle height and gas pressure, are selected automatically by the CNC
control system according to the material code selected in the
ControlLink database. Beneath the cutting head are two independent
work chutes designed for small and larger parts, through which the
finished parts are fed onto the conveyor.
The sheet metal is positioned on a coordinate table, which precisely
moves the material along the X and Y axes. The programmable speed and
acceleration of the axes enable the adjustment of movement parameters
to suit the performed operation, whilst the automatic repositioning
function of the sheet along the X axis enables the machining of larger
workpieces. The material is clamped to the table by four clamps with a
central locking system. The patented PCS system automatically
positions the clamps according to the prepared programme and monitors
their position during operation. It also defines safety zones to
prevent collisions with tool holders.
The machine is operated via a SIEMENS SINUMERIK 840D CNC controller
with an intuitive interface. The control system ensures convenient
programming and full control over the machining process. All this is
complemented by a design based on a rigid ‘O’-type frame, which
guarantees the highest stability even during intensive use. The
FINN-POWER punch-laser machine weighs 18000 kg.
Technical specifications of the FINN-POWER LP6 punching machine
LP6 punching machine
- punching force: 30 t (300 kN)
- punching method: servo-hydraulic
- feed in the X/Y axis: 3144/1615 mm
- maximum feed rate in the X/Y axis: 120/90 m/min
- maximum positioning speed: 150 m/min
- maximum workpiece thickness (punching – steel): 8 mm
- maximum workpiece thickness (punching – stainless steel): 8 mm
- maximum workpiece thickness (punching – aluminium): 8 mm
- maximum workpiece thickness (laser cutting – steel): 8 mm
- maximum workpiece thickness (laser cutting – stainless steel): 6
mm
- maximum workpiece thickness (laser cutting – aluminium): 6 mm
- minimum workpiece thickness: 0,5 mm
- maximum workpiece dimensions (L x W): 3074 x 1565 mm
- maximum workpiece weight: 200 kg
- number of tool stations: 20, including 9 index stations
- MultiTool head (2 pcs.)
- tool type: Thick Turret
- maximum punch diameter: 89 mm
- number of punch strokes (1-3 mm nibbling): 1000/min
- number of punch strokes (25 mm hole spacing): 400/min
- number of punch strokes (250 mm hole spacing): 150/min
- maximum tool rotational speed: 166 rpm
- tool change time: 1-3 s
- turret rotation speed: 30 rpm
- work chute – maximum dimensions of laser-cut parts: 300 x 400 mm;
500 x 500 mm
- work chute – maximum dimensions of punched parts: 500 x 500 mm
- pneumatic material clamps (4 pcs.)
- maximum deviation of hole position in the X and Y axis: 0,1 mm
- maximum deviation of distance between holes in the X and Y axis: ±
0.05 mm
- maximum angular deviation of the CNC-indexed tool: ± 0,1°
- Pa positional deviation in the X and Y axis in accordance with
VDI/DGQ 3441: 0,08 mm (± 0,04 mm)
- Ps spread deviation in the X and Y axis in accordance with VDI/DGQ
3441: 0,04 mm (± 0,02 mm)
- oil tank capacity: 200 l
- weight of the hydraulic unit without oil: 600 kg
- maximum working pressure: 300 bar
- minimum compressed air pressure: 6 bar
- maximum compressed air consumption: 8 Nl/s
- average compressed air consumption: 5,5 Nl/s
- fuses (for 3x 400 V power supply): 3x 100 A
- average power consumption: 20 kVA / 17 kW
- connection power requirement: 80 kVA
- ambient temperature: +10°C/+35°C
- relative humidity: 20-75%
- weight of the machine: 18000 kg
ROFIN DC025 laser source
- type: CO2
- operating hours: 17505 h
- maximum laser power: 2500 W
- laser beam output power range: 250-2500 W
- laser beam output power stability: ± 2%
- laser beam wavelength: 10,6 µm
- laser beam diameter: < 22 mm
- laser beam quality (mod): K > 0,9
- laser beam positioning stability (divergence): ≤ 0.15 mrad (EN ISO
11145)
- polarisation: linear, 45°
- minimum pulse duration: 26 µsec – CW
- fuses (for 3x 400V power supply): 3x 80 A
- average power consumption: + 13 kVA / + 11 kW
- connected load requirement: 60 kVA
- unit dimensions (L x W x H): 1700 x 800 x 853 mm
- control cabinet dimensions (L x W x H): 800 x 600 x 1900 mm
- unit weight: approx. 500 kg
- control cabinet weight: approx. 570 kg
Cutting head
- type: AF 1.5″ with interchangeable lens mount
- focal length: 5″ or 7,5″
- focal length adjustment: programmable
- material detection distance: programmable, capacitive
(non-contact)
- cutting gas pressure control: CNC or manual
- maximum cutting gas pressure: 25 bar
LUMIKKO oil cooler
- cooling capacity: 45 kW
- maximum cooling power: 0.64 kW/°C
- closed cooling circuit
- water temperature (main circuit): 20°C ± 1°, resonator
- water temperature (auxiliary circuit): 24°C ± 1°, optics
- tank capacity: 325 l
- air flow rate: 2.1 m3/s
- noise level: 65 dB(A)
- dimensions (L x W x H): 1420 x 1200 x 1950 mm
- unit weight (without water): approx. 550 kg
HERDING DELTA 750-4/9 SB filtration unit
- filters: 4x DELTA 750/9 3K
- filter area: 7,3 m2
- air flow: 500 m3/h
- average penetration rate: 0,01%
- noise level: 74 dB(A)
- dimensions (L x W x H): 1200 x 835 x 2120 mm
- unit weight: 580 kg
Equipment for the FINN POWER LP6 12 43 CNC punching machine
- touchscreen operator panel with SIEMENS SINUMERIK 840D CNC
controller
- 20-station turret head, including 9 index stations
- MultiTool head (2 pcs.)
- servo-hydraulic punching head
- cutting head with autofocus
- automatic loading tables operating alternately (2 pcs.)
- table for unloading cut parts
- a chute enabling the punching of smaller parts without micro-joints
and their automatic transport to containers beneath the machine
table
- laser source: ROFIN DC 025
- rotary (indexable) system for forming from below (2 pcs.)
- coordinate table
- brush tables
- pneumatic material clamps (4 pcs.)
- filtration unit: HERDING DELTA 750-4/9 SB
- oil cooler: LUMIKKO
- hydraulic unit
- electrical cabinet with cooling
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