MLH45 laser head

mta’s MLH45 laser head is primarily used for soldering robots on joints that are too small for the iron – smaller than 1mm. For the smallest applications, we combine the laser heat source with optical realignment and solder paste jet dispenser. This guarantees mastery of the total process especially in cases where solder wire size is too large to achieve optimal results.

We also use the MLH45 laser head for soldering robots when the part requires a non-contact heat source, or the joints are in tight places that physical heating units cannot reach.

We can integrate the induction soldering iron on two of our standard soldering platforms: laser MRC500 robotic cell and TR300 table-top robot.
N.B. We add metal sides and a mechanical door to the TR300 table-top robot to protect operators from the laser.

The main features of our MLH45 laser head include:

  • The ability to solder very small joints
  • Easy teaching with integrated monitoring and laser pointer
  • Diode laser with optical fiber
  • Non-contact soldering
  • Jam-free wire feeder mounted directly on the head provides tight process control
  • Compatible with RoHS (lead-free) solder

7 reasons to choose the mta MLH45 laser soldering head

  1. We can combine the laser with solder paste jetting system to solder very small joints.
  2. Optional fiducial recognition is able to realign the paste jetting system and laser.
  3. The laser fires straight down, so it is able to reach joints inaccessible by iron, induction and microflame.
  4. There are no stamped sheet metal or die-cast parts. We machined the robust head structure from solid material to provide a rigid platform for the iron and wire feeder.
  5. The clamping system provides easy adjustment and precise alignment. Once tightened, the position will not change until loosened – there is no risk of accidental misalignment as a result of heavy use or while changing tips.
  6. We mounted our precise jam-free solder wire feeder directly on the head – at the solder joint. This provides tight process control of the wire feed. Solder wire does not kink or get jammed since there is no long feed tube. Once the correct amount is fed, the wire feeder pulls the wire out of the solder pool to prevent solder spatter.
  7. Optionally, the solder paste jet, is offset on the same head, so one robot provides both functions – no need for a second robot to apply solder to the parts.

Laser head for soldering robots

  • Medical application
  • 2 soldered points with MLH45 laser head
  • Point size of 0.3 mm

  • Wires on a ceramic substrate of a medical pressure sensor
  • 4 soldered points with MLH45 laser head
  • Point size of  1 mm

  • Medical application
  • 9 soldered points with MLH45 laser head
  • Point size of 0.8 mm
Laser head for soldering robots

The standard MLH45 laser soldering head comes well-equipped:

  • Soldering head structure
  • Diode laser with optical fiber
  • Wire feeder
  • Solder wire
  • Cooling system
  • Controller
  • Monitoring camera

Options within mta dedicated laser platforms:

  • Integrated solder paste jetting system
  • Recentering camera
  • Vision quality control
  • Fume extraction system
  • Pyrometer
  • Part presence sensor
  • Part height measuring sensor
Laser head for soldering robots
  • Laser power  45W
  • Cooling system  air cooled
  • Wavelength  940nm
  • Laser spot  circular beam spot
  • Laser spot diameter  0.2 – 2.5 mm
  • Laser positioning system  laser pointer and camera monitoring (fiducials recognition in option)
  • Temperature control and power adjustment  temperature measurement with close loop control of laser power (option)
  • Laser source power supply  230V/50Hz or 115V/60Hz
  • Air pressure  max. 6 bar
  • Laser head dimensions  220 x 150 x 250 mm depending on chosen options
  • Laser head weight  ~4 kg



Selective soldering solutions

PDF - mta_selective_soldering_05.2017.pdf /8.3 mb

Laser head for soldering robots

Related products