* Compatible for work with all series of Polysoude power sources. * Interchangeable expansion / centring mandrel for all tube ID’s. * Endless rotating torch, no cable wrap-up by means of a unique collector to supply the torch with welding current, shielding gas and cooling liquid. * Closed loop regulation to ensure precise, constant or pulsed welding speed. * Encoder for position based control of the welding program. * Return-to-home feature: the electrode gear automatically returns to …