Sisma SWA 150 and SWA 300 Mold Repair Lasers with Motorized Welding Arm

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Special Order Item
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Sisma offers a range of laser welders engineered specifically for the repair and maintenance of molds. The range includes the best-selling SWA series for all mold sizes, the SWT series for medium and small molds, and the LM-B series for small molds. Sisma laser welders are used in premier mold & die shops around the world, carrying an excellent reputation for the highest precision and ease of use. All are made at Sisma’s headquarters in Italy, and are backed by a 1-year manufacturer’s warranty.

Flexibility of the SISMA SWA Class 4 system! The "SWA" is designed for welding and repairing small and large pieces and molds. The laser transport in optical fiber provides great flexibility without significant power loss.

Designed and constructed for making modifications and repairs on molds damaged by wear or use. The SISMA SWA 150 and SWA 300 are lasers revolutionizing the conventional mold welding techniques. Material is added allowing repairs to be made without preheating the dies and with minimal heat transfer during the deposit process. Laser welding avoids classic damage caused by TIG welding such as: geometric distortions, burning of the edges and decarbonization. The properties of the laser beam make it possible to weld complex molds with deep and narrow grooves or inner and outer edges. All steels, bronze and copper alloys, aluminum and titanium can be welded. The hardness of the welding layers can reach very high values depending on the type of filler wire used.

Simple operating procedures and accurate visual control of the weld material using a stereomicroscope make this technology accessible to everyone, not just qualified engineers. The SWA 150 and SWA 300 units are powered by a flash lamp-pumped Nd:YAG laser generator with laser pulse transmission through optical fiber and is equipped with a system for movement along the motorized x, y, and z axes controlled by a joystick and button panel.

The laser source has been designed to guarantee high operating stability at both low and high power; fiber transport of the laser pulse provides a smaller beam diameter along with high stability of the laser spot, both in the initial transients and at various thermal loads of the laser source. The fully integrated cooling system is suitable for extended use. Motorized welding box for dies reparation complete with optic head with focal lens F120 and 10X stereomicroscope. Quick selection/setting of work by means of a color touch-screen display and with a memory up to 250 welding parameters. Axis X-Y Z motorized; Axis X stroke 300 mm; Axis Y stroke 150 mm and Axis Z stroke 500 mm. Axis Z is controlled by means of a joystick rotation. Made in Italy.


  • Feeder with integrated water-air cooling system (Without external chiller)
  • New interface card for integrators
  • Potentiated diagnostic
  • In/out data by means of a USB key
  • "Pulse Shapping" function for complex welding operations
  • Optic fiber length 3 m, core diameter 800 micron
  • Axis Controller

One year manufacturer’s warranty.

Find these items on these pages in our catalog:
  • 566
    SWA 150 SWA 300
    Item Number: 830-1710 830-1715
    Source Type: Nd: YAG (flash lamp) Nd: YAG (flash lamp)
    Wavelength: 1064 nm 1064 nm
    Average laser power (max): 150 W 300 W
    Peak laser power (max): 10.5 kW 12 kW
    Laser pulse energy (max): 75 J 150 J
    Laser pulse duration: 0.3 ms - 25 ms 0.3 ms - 25 ms
    Shot frequency (*): 0 - 100 Hz 0 - 200 Hz
    Spot diameter (with 800 um fiber): 0.6 - 2 mm 0.6 - 2 mm
    Laser beam transport: Fiber-coupled Fiber-coupled
    Incorporated Cooling: Deionized water 5 liters Deionized water 10 liters

    water/air water/air
    Welding Head
    Focusing head: 120 mm 120 mm
    Viewing system: Leica binocular Leica binocular
    SWA System
    Laser class of the machine: Class 4 Laser Class 4 Laser
    Movement speed: 0-20 mm/s 0-20 mm/s
    Laser electric power supply (max): 400 V 50/60Hz 3ph 3.5 kW 400 V 50/60Hz 3ph 3.5 kW
    Laser absorbed current (max): 9:00 A 15 A
    SWA system power supply: 230V 50/60Hz 1ph 1kW 230V 50/60Hz 1ph 1kW
    SWA absorbed current (max): 5:00 A 5:00 A
    Noise Level: 55 db 55 db
    Weight: 270 kg (596 lbs.) 270 kg (596 lbs.)
    Dimensions l x d x h: 1100 x 2100 x 1470 mm (4 x 7 x 5') 1200 x 1950 x 1470 mm (4 x 6.5 x 5')
    Machine with the axes closed: + 640 mm (2') max. in height: + 640 mm (2') max. in height:
    Machine with the axes open and display raised: + 850 mm (3') max. in depth + 850 mm (3') max. in depth
    Shipping Weight: 426kg (939 lbs.) 466kg (1,027 lbs.)
    Crate Dimensions l x d x h: 1250 x 1950 x 1600 mm (4 x 6.5 x 5.25') 1250 x 1950 x 1600 mm (4 x 6.5 x 5.25')