SL Series for laser welding

High-Speed Pulsed Laser Source for Automated Welding

The SISMA SL 35/50/80 is a compact Nd:YAG pulsed laser source developed for high-speed, high-precision automated welding. Designed for seamless integration into production lines, robotic cells and custom machinery, it delivers stable, repeatable welding performance across a wide range of industrial manufacturing applications.
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High-Speed Pulsed Laser Source for Automated Welding

Designed for Automated Laser Welding

The SL Series is engineered as an OEM laser source for manufacturers requiring reliable, repeatable laser welding within automated production environments. Available in 35 W, 50 W and 80 W models, each system incorporates SISMA’s proven Nd:YAG flash-lamp technology and fibre optic beam delivery to achieve accurate welds with minimal heat input. The compact design allows easy integration into robotic workstations, CNC equipment and dedicated manufacturing cells. The optional PLUS version includes SISMA’s Cruise Control technology, maintaining stable pulse energy throughout extended production cycles for consistent welding quality. Small-diameter optical fibres provide excellent beam quality, while the ability to split the beam across two fibres offers additional production flexibility.
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Production Ready

Designed for seamless integration into automated manufacturing systems.

Stable Output

Cruise Control technology maintains consistent pulse energy during production.

Precision Welding

High beam quality enables accurate, repeatable laser welding on demanding components.

Key Features

The SISMA SL Series delivers reliable pulsed laser performance for manufacturers integrating laser welding into automated production processes.
  • Available in 35 W, 50 W and 80 W average power configurations.
  • Compact OEM design for robotic cells, CNC machines and production lines.
  • Optional Cruise Control system ensures stable pulse energy for repeatable welding quality.

Automated laser welding production system

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Model SL 25 SL 35 SL 50 SL80
Average power 25 W 50 W 60 W 80 W
Pulse peak power 3 KW 3,5 KW 7,5 KW
Max pulse energy 20 J 25 J 30 J 70 J
Max pulse energy at 3 ms 7 J 9 J 18 J
Pulse frequency 0 ÷ 50 Hz 20 J
Pulse duration 0.3 – 25 ms 0 ÷ 50 Hz 0 ÷ 50 Hz 0 ÷ 50 Hz
Color display touch screen 0.3 – 25 ms 0.3 – 25 ms 0.3 – 25 ms
Beam splitter NO touch screen YES touch screen
Max working temperature 35°C NO YES YES
Cooling Air NO YES
Power requirements 230 Vac – 1ph 35°C 35°C 35°C
Dimensions mm (LxWxH) 345x950x900 Air Air Air
Weight 97 Kg 230 Vac – 1ph 100 Kg 230 Vac – 1ph
345x950x900 345x950x900
97 Kg 100 Kg

 

Model SL 150 SL 300
Laser Nd: YAG (flash lamp) Nd: YAG (flash lamp)
Average power 150 W 300 W
Pulse peak power 10,5 KW 12 KW
Max pulse energy 70 J 100 J
Max pulse energy at 3 ms 29 J 35 J
Pulse frequency 0 ÷ 100 Hz 0 ÷ 200 Hz
Pulse duration 0.3 – 25 ms 0.2 – 25 ms
Color display touch screen touch screen
Beam splitter YES NO
Smart spot NO NO
Max working temperature 35°C 35°C
Cooling Air Air
Power requirements 400 Vac – 3 ph50÷60Hz – 5.5A 400 V 50/60Hz 3ph 8 Kw
Dimensions mm (LxWxH) 720x520x990 900x630x1090
Weight 120 Kg 206 Kg

The SISMA SL 35/50/80 is designed for automated laser welding in production environments where speed, repeatability and precision are essential. Its compact laser source integrates easily into robotic workstations, CNC equipment, automated assembly lines and bespoke manufacturing systems, enabling high-quality welding with minimal thermal distortion.

Typical applications include precision metal joining, electronic components, medical devices, automotive assemblies, battery manufacturing, jewellery production and precision engineering. The fibre optic beam delivery and optional dual-fibre capability provide manufacturers with flexible integration options for high-volume production.

You ask, we answer

No. The SL Series is an OEM laser source intended for integration into custom machinery, CNC systems and automated production lines rather than use as a standalone manual welding station.
Cruise Control, available on PLUS models, automatically maintains stable pulse energy throughout long production runs, ensuring consistent weld quality even during demanding manufacturing cycles.
Yes. The compact design and fibre optic beam delivery make the SL Series ideal for robotic welding cells, CNC machinery, automated assembly systems and OEM manufacturing equipment.

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