Passion for Innovation Excellence in technology
Precision Welding

SLTL Group equipped with the strong R&D center. Pulse precision welding is a very precise Laser Welding Machine developed by the team.

The machine is able to make seamless welding joints with very high precision on micro products. The machine comes in with industry-ready features, making it smooth to operate. 

Large Display with Backlighting

Clear presentation of all adjustable parameters in user view. Adjustment limits are visualized.

Precision Welding

"ON AXIS" Inert Gas Supply

A safe "on axis" insert gas supply makes it possible to weld even highly sensitive materials such as titanium. The welding mark is always inundated with insert gas at 90 degrees by the "on axis" gas supply .The guarantees that no shadow effects arise as in lateral gas supply.

Precision Welding

Light Illumination Innovation : High Power LED Cold

Another highlight is high —power white light LED illumination. The advantage: No heat radiation by converting electrical energy into a focused white cone light. With this generation of machines hot chambers and the clammy hands associated with them are a part of past. The white light offers highest colour fidelity when looking through microscope. And it has an especially long service life of over 10,000 hrs.



Precision Welding

Beam Turner

The innovative beam turner technology guarantees stable power output , even at very low pulse enegry. Beneficial especially when welding very small parts. Depending on the application, spot size can be reduced less than 50 µ

Precision Welding

High welding joints quality

It offers large weld penetration, minor deformation, pollution-free welding sites, easy and beautiful appearance, no need or just simple post-treatment.  It gives the strongest welds and high quality joints. This innovative system ensures superior quality while delivering 40-100% more output compared to existing TWB Welding Systems.

Precision Welding


 Beam Source

 Nd' :YAG

 Pump Source

 Flash Lamp


 1064 nm

 Max. Pulse Energy

 60 - 80 Joules

 Max. Laser Power

 100W / 150W

 Pulse Frequency

 0 - 50 Hz, Adjustable

 Pulse Fill Mode

 10 - 100%

 Pulse Width

 1 - 15 ms, Adjustable

 Focal Length Standard

 120 mm {others on request)

 Spot Diameter

 0.3 – 2 mm (motorized)

 Flash Lamp Voltage

 160 - 500 Volt


 Water Cooling

 Inert Gas Connections

 Dual , along the beam axis and switched on via flexible inlet


 Stereo microscope with 15X zoom


 Outer Dimensions (W×D×H)

 342 × 388 × 828 mm

 Total Weight

 Approx.50 Kg

 Electrical Connection

 1-Phase, 230V, AC 50Hz / 60Hz


 Ready for welding, as described above, Operating instructions with   welding information.

  • Foot switch
  • Panel A/C
  • Safety curtains
  • Enclosure
  • Focusing lens

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Customer Speaks

  • “Earlier rail bogie manufacturing was using traditional methods. Last year we got high power laser welding machine from SLTL and it proved in all aspects. Also, our productivity has been increased and we are looking for more addition of SLTL machine"

    Mr. Dayasagar Rao
    Vice President , Operations of Pennar Industries Limited.

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