Laser egraving with the fiber laser mobil-mark® Quasar

Part of our repertoire is an efficient portable fiber laser for precise, durable markings on all kinds of materials. The laser comes in three different versions with performance levels of 20, 30 and 60 watts. The pulse frequencies in all three versions are variable from 1 to 400 kHz. Whether it’s metal, plastics or ceramics, annealing marking, application marking, or deep engraving: the Quasar laser marking system always offers the optimal solution.



The laser components

Compact supply unit

The mobile base station combines many functionalities within a compact space. At the station, you’ll find all the important operating and display elements, a handset holder and a chassis. External interfaces can be used on the rear of the station. There you’ll also find an integrated cooling compressor and filter as well as the mains connection.

Flexible connecting tube

An up to 3.7m long flexible connecting tube allows you maximum flexibility in engraving so that you can easily reach the product to be marked. The spiral protector effectively protects all internal electrical and pneumatic connection lines and the laser light guide.

Practical handset

Marking is carried out with the aid of the laser handset. A positioning aid at the lower end makes it easier to position the laser. There is a control and display element at the head of the laser as well as the universal function unit through which the laser radiation is emitted. A sealing unit installed downstream ensures that the exiting laser light does not pose a danger to the operator.

It all depends on the right laser power class!

We offer our Quasar in the power classes 20 watts, 30 watts and 60 watts, because different power classes are suitable for different applications. Four parameters are decisive in the selection process: the type of material and surface, the engraving depth, the engraving size and the desired cycle time. For certain materials, such as steel, which have a high strength, a higher laser power is usually required in order to perform deep engravings accurately. For other sensitive materials such as plastic, on the other hand, gentle laser engraving with lower power is recommended. But also the criteria size of the inscription, depth and cycle time can have an influence on the selection of the right laser power. You can get an overview with the help of the infographic. By the way, we have two lasers and practical accessories in our range for the sensitive material ceramic – so that we can offer you the best possible option for your needs.

What is a fibre laser?

Fibre lasers belong to the family of solid state lasers. In this case, the laser beam is amplified by special glass fibres. The glass fibres get their energy from something called pump diodes. In contrast to conventional CO2 lasers, fibre lasers are able to deliver an extremely small focus diameter: This means the intensity of the laser beam is up to 100 times higher than with CO2 lasers of the same power. Fibre lasers are also characterised by a particularly long life. Mobil-Mark uses MOPA (master oscillator power amplifier) fibre lasers. This type of laser offers all the advantages of a fibre laser as well as the option of variably adjusting pulse durations. This is why it’s considered one of the most flexible lasers on the market and is suitable for a wide range of material applications.

These products will make laser engraving easier for you

Mobil-Mark offers a wide range of accessories, from special mountings for the best possible alignment of the laser head to additional digital operating aids and special filter systems.

Find a suitable engraving aid for your needs here.

Delicate or non-corrosive

The different optics with focal lengths from 62 mm to 166 mm will give you even more flexibility, since they enable you to mark areas with up to 120 x 100 mm. In special cases we can achieve a marking area of 400 x 580 mm thanks to focal lengths of up to 580 mm. The beam diameter is 20 µm with a f = 100 mm optics, so that even delicate markings can be executed to perfection. For difficult requirements to steel markings, for example in the pharmaceutical or food sector, we can use inert gas instead of air in order to achieve a non-corrosive marking. The power consumption during marking amounts to 300 watts – a conventional 240 V power outlet will suffice for the operating of the laser.

Technical data of the MOPA fiber laser:

  • Power output: 20 / 30 / 60 watts
  • wave length: 1064 nm
  • pulse frequency range: 1 – 400 kHz
  • full power frequency range: 30 – 400 kHz
  • maximum pulse energy: 0.6 mJ / 0.8 mJ / 1.2 mJ
  • pulse width: 200 ns (fixed)
  • laser focus diameter: approx. 20 µm (lense f=80 mm)
  •  laser output pulse peaks: approx. 30 kW / 40 kW / 60 kW
  • marking speed: maximum 5000 mm/s