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RLS280PRN – flexo printing machine

LESKO RLS280PRN

 
LESKO RLS280PRN is the only one on the market so compact and multifunctional machine designed for printing and confectioning of labels.
The machine can be equipped with a rotary die cutting unit and the dual printing unit.
Usage of servo mechanism ensures off-line die cutting in register.
Additionally, there is possibility to use servo mechanism in one of printing units, which allows to print the third color.

FEATURES AND OPTIONS

TECHNICAL DATA:

  • max. web width                                                                   280 mm
  • max. speed (winding/die cutting)                                   220 m/min
  • max. speed (printing)                                                        110 m/min
  • max. unwinding diameter                                                 Ø 750 mm
  • unwinder and rewinder pneumatic spindle                  Ø 76 mm
  • max. rewinding diameter on single spindle                  Ø 440 mm
  • max. rewinding diameter on dual spindle                     Ø 310 mm
  • max. rewinding diameter on dual spindle – option    Ø 600 mm
  • power supply voltage                                                          3x400 V
  • frequency                                                                              50 Hz
  • installed power (standard)                                               6 kW
  • average air requirement                                                    1 m3 ; 6 bar
  • weight (standard) `                                                            900 kg
  • size (standard) (L x W x H)                                              1650 x 1250 x 1950 mm
control:
  • microprocessor control
  • tactile panels with intuitive interface
  • control panel + operator panel near the web-connecting table
motors:
  • asynchronous motor - the main drive
  • asynchronous motor - rewinder(s) drive
  • powder brake on the unwinder
  • powder clutch on a rewinder
opctional:
  • servo motor on rewinder:
    • very precise tension control
    • rewinding materials with specific parameters, eg. foils
    • rewinding rolls with diameters Ø 600 mm
  • servo motor on unwinder:
    • active compensation of tension during acceleration and braking
  • servo motor on rotary die cutting unit:
    • off-line die cutting to register
  • servo motor on flexo printing unit:
    • enabling printing of third colour
sensors:
  • current meters and labels electronic counter
  • luminal sensor
  • five-line missing labels control system
  • ultrasonic sensor of end of the roll with automatic stop
optional:
  • US sensor for transparent labels
  • sensor for detecting the flags

UNWINDER:

  • max. roll diameter                           750 mm
  • max. lifting capacity                        100 kg
  • pneumatic expansion spindle       Ø 76 mm
  • electromagnetic (powder) brake

WEB-CONNECTING TABLE:

  • equipped with pneumatic clamp blocks, thanks to which the tension of the material is retained during webs repairing

WEB MOTION:

  • BST web guide system with smooth control

FLEXO PRINTING UNIT:

  • max printing width                            270 mm
  • lateral shift adjustment                     +/- 7 mm
  • longitudinal shift adjustment          +/- 15 mm
  • duct roller
  • anilox grid raster                               160L / cm, 60 ° 6,5cm3 / m2
  • rotating anilox during standstill
  • IR dryer 3000W with the side waste exhauster and power controlled automatically depending on speed
optional:
  • second flexo printing unit
  • additional servo motor enabling printing of third colour
  • single UV lamp from UV-ray or GEW; maximum power: 160W / cm (fan, power supply unit, operator panel)
  • double UV lamp from UV-ray or GEW; maximum power: 160W / cm (2x fan, 2x power supply unit, 2x operator panel)

NIP-ROLL:

  • pneumatic clamp
  • easy replacement and cleaning of rubber roller

SHEAR CUTTING KNIVES UNIT:

  • knives for scissor system cutting
  • 3 sets of knives + the possibility to add following
  • min. cutting width 10 mm

REWINDER:

  • max. winding diameter               Ø 440 mm
  • pneumatic expansion spindle    Ø 76mm
  • electromagnetic (powder) clutch
  • change the winding direction from the control panel
optional:
  • additional rewinder (max. winding diameter - Ø 310 mm)
  • special rewinders system for rewinding rolls with diameters Ø 600 mm (servo motor)
  • spindles with diameters from Ø 19 to Ø 76mm
  • adapters for spindles with diameters from Ø 76 to Ø 152 mm
  • semi-turret version of rewinders with the option of simultaneous wound on two spindles

ADDITIONAL EQUIPMENT:

ROTARY DIE CUTTING UNIT:

    • max. working width of cylinder               280 mm
    • max. circumference of cylinder               125 T/1/8”
    • adapted to constant, long-term work
    • anvil supported by the driven shaft
    • gap control system GapMaster from Kocher+Beck
  • optional:
    • any gap control system offered in the market
    • the hydraulic pressure control system of the magnetic cylinder
    • adapters for other magnetic cylinders
    • adaptation of the whole die cutting unit for customer's cylinders
    • work off-line in register
    • possibility of convertion of cylinder and anvil to perform the perforation of the base

WASTE MATRIX REWINDER:

    • max. roll diameter                           500 mm
    • mechanical spindle                         Ø 76 mm
  • optional:
    • pneumatic spindle                         Ø 76 mm

WEB INVERTING UNIT BETWEEN PRINTING UNITS:

    • enabling printing on the other side of the material
  • stroboscope synchronized with the speed of machine
  • pneumatic clamp of the end of web controlled from the operator panel
  • single foot switch to control the machine: working at jog speed
  • dual foot switch to control the machine: working at jog speed + switching on compressed air
  • razor blade knives unit:
    • 5 knives + possibility to add following
  • pneumatic crush cutting knives unit:
    • 3 knives + possibility to add following
    • at nip-roll place
  • additional rewinder's expansion spindles:
    • diameters: Ø 25 mm, Ø 40 mm, Ø 50 mm, Ø 76 mm
  • the side waste exhauster
  • rotary sheeting unit:
    • at nip-roll place
    • cuvette for receiving sheets or a small receiving table or a large sorting-receiving table

SEE ALSO:

LESKO CF380

LESKO CL

LESKO RLS DIE

LESKO HI440

LESKO RLS

Roll lifters