Speedy series: Laser engraving and cutting machines for formats up to 1016 x 610 mm
⚫ Engrave | ⚫ Cut | ⚫ Mark |
Laser type: | CO₂, Flexx or Fiber laser |
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Work area: | 610 x 305 up to 1016 x 610 mm |
Max. workpiece height: | 125 - 305 mm |
Laser power: | 20 - 120 watts |
SP series: CO2 laser cutter for large-format materials.
⚫ Engrave | ⚫ Cut | ⎯ Mark |
Laser type: | CO₂ laser |
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Work area: | 1245 x 710 up to 3250 x 3210 mm |
Max. workpiece height: | 50 - 112 mm |
Laser power: | 40 - 400 watts |
Marking laser stations with galvo marking heads. Marking area up to 44.1 x 25.0 inch.
⚫ Engrave | ⎯ Cut | ⚫ Mark |
Laser type: | CO₂ or Fiber laser |
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Max. work area: | 190 x 190 up to 1300 x 450 mm |
Max. workpiece height: | 250 - 764 mm |
Laser power: | 20 - 100 watts / 20 + 100 watts MOPA |
The depth of focus, otherwise known as double Rayleigh length, refers to the distance along an optical axis required by a laser beam to double its focus area - starting from the focus in the focal plane. The depth of focus and understanding its basic physical properties are critically important in laser technology, as it is these properties that are used to select the correct lens for any specific application.
The depth of focus represents the area in the image space of an imaging optical system, in which a sufficiently sharp image of a focused object is adequately formed. This is why “depth of focus” is also known as depth of sharpness. An imaging system (in our case, the laser beam) can only be moved within the range of image depth before blurring is the result.
The importance of focusing and focal tolerance becomes critically obvious when you want to cut or engrave using a laser. This is because choosing the right lens is just as important as optimising the focal length of that lens.
The greater the image definition required, and the more intricate detail contained in the graphic that is to be applied to an object by means of a laser, the smaller the focal length of the lens must be. However, if thick materials are to be cut, lenses with a large focal length are recommended. As a practical example, if we were to use the 1.5 inch lens with a CO2 laser, this lens, which has a small focal length, enables the engraving of graphics with the finest detail thanks to a resolution of more than 500 dpi.
On the other hand, a 7.5 inch lens which has a much larger focal length, will allow a high laser power to cut acrylic sheets that are thicker than 25mm.
There is a conflict of objectives when choosing the correct lens due to the fact that if the focus diameter is decreased, then the depth of focus also decreases, i.e. it needs to be focused more precisely.