LaserPin

Punching Unit LPA2


The LPA2 is able to make holes in all types of materials on a moving web up to a maximum thickness of 800 microns. It makes round or shaped holes of different sizes on a moving web, mostly in plastic film. The great advantage of this unit is the ability to operate at high frequencies and with high production rates. It also enables the machine to perforate at very close distances between holes and between lines of holes.


The LPA2 has a strong structure and can operate at high frequencies and with high production rates. It is the ideal solution for specific perforation needs in cases where the required distance between holes or the distance between lines is very close. Designed to be installed on a hosting machine and compatible with all production lines, it guarantees perfect holes on a moving web. It makes both round and shaped holes. Round holes have a diameter between 2 and 50 mm. Shaped holes are all non-circular perforations such as handles for bags and Eurohole (Mexican hat) . The unit operates with multiple punching tools through which the film flows. The number of punching tools required depends on the customerís needs.

A punching tool consists of a hammer (upper part) and a die (lower part) and its action is pneumatically controlled by specially designed electric valves. It operates at a maximum optimal frequency of 80 strokes per second, and a maximum speed of 260 meters per minute (depending on the material). thus adapting to the production lineís speed. The LPA2 has a double bridge structure which enables the punching tools to be mounted on both sides of the bar. This solves the problem of making holes at a distance smaller than the punching tool itself, and also means the frequency is be doubled in cases where the web distance of the holes is very close.

MATERIALS = LDPE, HDPE, PP, Coated, FOAM, Paper, PVC.

  • Maximum Working Width = 5.100 mm;
  • Maximum Material Thickness = 800 microns;
  • Minimum Cross Distance = 15mm (7.5mm with 2 x double bridge);
  • Maximum Speed = 260 meters / minute;
  • Maximum Frequency = 80Hz (160hz with double double bridge);
  • Diameter of the holes = From 2 mm to 50 mm;
  • Software 4.0 = integrated;
  • Double Bridge = yes.

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