Applications Posts

Laser marking on concrete

industrial marking laser Macsa

 

The main function of concrete sleepers is to maintain the stability of the tracks when faced with the static stress caused by the train’s own weight and variations in temperature. Thanks to its lower cost and strength, wood sleepers have been replaced by concrete ones, but is a laser capable of marking a concrete block?

The answer is yes. With the Series F range of industrial lasers by Macsa ID, we can obtain a deep mark, which favours both the contrast and the visibility of the text.

Marking on an oil bottle (PET)

oil marking Macsa

PET containers are the most frequently used ones in the industry thanks to their resistance, flexibility and its ease of molding. In this case, a QR code + 1 line of text (Macsa’s website) were marked on an oil bottle (PET). The difficulty of this type of marking is to ensure that the coding is visible and readable on the transparent plastic and on a material that can easily become greasy during the production chain process.

The marking visibility is high because the marking obtained is white on the transparent plastic and on the background, which is yellow in this case. With the appropriate power of the laser (30W), a QR code mark is produced which is perfectly readable with any mobile application.

Painted steel marking with DPSS laser

damper-macsa-marking_01

 

Marking and coding generally indicate the serial number, the batch number, the expiry date and so on, but this time we are going to focus on when a warning message needs to be added, and specifically the marking of a safety logo.

By means of an ‘etching’ system (vacuum engraving mode) and the use of the correct typeface, a permanent mark can be achieved. In this process, the surface is not damaged and visibility is increased thanks to the sharp contrast of the white mark on a black surface.

Laser marking on plastic taps

macsa-laser-marking-bottle-tap

The last manufacturing process that the product undergoes is coding and marking so that the relevant identification regulations concerning packaged foods or drinks can also be adhered to. In this particular application we can see that the product reference, the time and the expiry date have been marked.

In this case as the bottle top is red, we have achieved a high contrast in white by making a change of colour. In this manner, an indelible mark has been made without damaging the surface in any way.

‘Annealing’ on stainless steel bearing

bearing-codification-mailing-macsa-01

 

Metal parts, such as bearings, also need to be marked for identification with their product reference, brand or lot number for later traceability. Metal requires a marking and coding that does not damage the surface and with a high marking contrast in order to read the data properly.

For this purpose, and in general for the marking of metallic materials such as stainless steel, we use a fibre laser such as the SPA F-9020, which by means of annealing – or changing the metal’s colour by increasing its temperature – we can obtain a permanent black marking of great legibility and without damaging the surface.