Remote Welding System - RWS
High-speed welding system

The Remote Welding System (RWS) is a high speed welding system, which produces multiple spot welds. The raw laser beam is expanded using a reflective mirror beam expanding telescope and then focused with a turbo cooled lens with a focal length of 1.6 m. In the same way scanning optics are used in laser marking systems, a rapidly moving galvo mirror, designed specifically for high-power CO2 lasers, moves the beam in the X and Y axis. By moving the scanner mirror in the Y axis, the working area can be increased in that direction.

2D and 2 ½D Laser Welding
Thanks to the negligible non-productive transit times, the RWS sets new standards for the high speed welding. Movements between weld spots or stitches, defined as a "rapid move", can be done at speeds in excess of 2 m/sec. When compared to conventional resistance spot welding up to 10 times more weld joints can be created in a given period. A virtually unlimited variety of welding contours, such as spots, stitches, circles, crossed lines or wavy lines are easily programmable.

Highest Availability
These lasers are capable of about 20 million welding cycles for more than 300 km of weld length, with-out the exchange of typical wear parts. The system sets a benchmark for availability and process op-timization when compared to conventional methods with mechanical axle drives and multi spot welding grippers. The system is equipped with the well established CO2 lasers of the DC Series from ROFIN. The excellent beam quality of these units makes welding over such long focal distances possible. The robust technology and the low gas consumption make these lasers a perfect and reliable tool for re-mote welding.