The ELC 250 DUO is a very compact laser machining tool. Machining stations, laser, laser cooling unit, electrical cabinet and peripherals are all mounted on a common, self-supporting base frame. The outstanding advantages of this design are the high degree of precision and long-term constancy, much shorter commissioning periods and the possibility to move the whole system with very little effort, allowing the user to adjust quickly to changing production requirements. The DUO variant of the ELC features two spindles. This twin-station operation allows for cycle time-concurrent loading and unloading of the work spindles. An integrated beam diverter allows for the laser to be switched between focusing optics, thus optimising its degree of utilisation and increasing productivity.

The ELC is equipped with a diffusion-cooled CO2 slab laser (DC Diffusion-Cooled series) made by ROFIN SINAR. The distinguishing features of the DC series are their excellent beam-focusing capability, their compact design and their low operating costs, especially where energy and laser gas consumption – and maintenance work – are concerned. Its excellent beam-focusing capability (K-number > 0.9, i.e. close to the physical maximum of K = 1) ensures that the welding seam geometry can be fine-tuned to suit particular workpiece requirements. The beam can produce narrow, deep welding seams by using little heat, but also wider seams.
Diffusion-cooled lasers are known to attract low operating costs. This includes extremely low laser gas consumption. The laser uses Premix gas from a laser gas bottle.