Abstract: Assembly for a plasma arc torch comprising:—an electrical contact element (6), having a proximal contact surface (25) for contact with a power supply component (8) and a cavity with inner side walls for contact with side walls of a proximal end portion (14) of an electrode (3), and—a spring (4) for pushing the electrode (3) away from the electrical contact element (6), and—an insulation element (5) arranged on the electrical contact element (6) and adapted to prevent transfer of electrical current form the electrical contact element (6) to the spring (4).

Abstract: A plasma torch is provided having an electrode with a frustoconical end portion. The electrode is received by a plunger during a contact start sequence of the plasma torch and is self-releasing from the torch. The electrode may include a shoulder portion that provides concentric alignment and centering of the electrode with respect to the central longitudinal axis of the components. Other components of the torch include a nozzle, a swirl ring, and retaining cup, such that the consumables of the torch may be toollessly removed and installed.

Abstract: A plasma torch is provided having an electrode with a frustoconical end portion. The electrode is received by a plunger during a contact start sequence of the plasma torch and is self-releasing from the torch. The electrode may include a shoulder portion that provides concentric alignment and centering of the electrode with respect to the central longitudinal axis of the components. Other components of the torch include a nozzle, a swirl ring, and retaining cup, such that the consumables of the torch may be toollessly removed and installed.