A plasma cutting system includes a plasma torch having a head, and a housing. A power supply is disposed within the housing and is in communication with the plasma torch. The power supply is configured to provide an output current for generating and maintaining a plasma cutting arc by the plasma torch, and includes a control processor in communication with a plurality of autonomous switching circuits via a multi-node communications bus. Each of the autonomous switching circuits includes a microcontroller configured to control the generation of a portion of the output current based on messages received from the control processor, monitor operating parameters of the autonomous switching circuit, and modify a control parameter of the autonomous switching circuit independent of and asynchronous to the other autonomous switching circuits of the plurality of autonomous switching circuits when one or more of the operating parameters exceeds a predetermined threshold.

A plasma cutting system includes a plasma torch having a head, and a housing. A power supply is disposed within the housing and is in communication with the plasma torch. The power supply is configured to provide an output current for generating and maintaining a plasma cutting arc by the plasma torch, and includes a control processor in communication with a plurality of autonomous switching circuits via a multi-node communications bus. Each of the autonomous switching circuits includes a microcontroller configured to control the generation of a portion of the output current based on messages received from the control processor, monitor operating parameters of the autonomous switching circuit, and modify a control parameter of the autonomous switching circuit independent of and asynchronous to the other autonomous switching circuits of the plurality of autonomous switching circuits when one or more of the operating parameters exceeds a predetermined threshold.

A plasma arc cutting system includes a power supply and a plasma torch attachable to the power supply. The plasma torch generates a plasma arc for cutting a workpiece. A reader is associated with the plasma torch. The reader is capable of reading stored data from an identification device located on a cartridge or a consumable component of the plasma arc cutting system. A controller is within the plasma arc cutting system and in communication with the power supply. The controller is capable of automatically establishing operating parameters of the plasma arc cutting system based upon the data stored on the identification device. An override feature allows a user of the plasma arc cutting system to override the automatically established operating parameters of the torch and to input user selected operating parameters.

A plasma arc cutting system includes a power supply and a plasma torch attachable to the power supply. The plasma torch generates a plasma arc for cutting a workpiece. A reader is associated with the plasma torch. The reader is capable of reading stored data from an identification device located on a cartridge or a consumable component of the plasma arc cutting system. A controller is within the plasma arc cutting system and in communication with the power supply. The controller is capable of automatically establishing operating parameters of the plasma arc cutting system based upon the data stored on the identification device. An override feature allows a user of the plasma arc cutting system to override the automatically established operating parameters of the torch and to input user selected operating parameters.

The invention relates to a plasma cutting arrangement having at least one plasma cutting torch which is formed by a torch body, an electrode and a nozzle having a nozzle bore. An outer contour AK of the plasma cutting torch is present in cross-section with respect to a longitudinal axis which is aligned perpendicular through the nozzle bore. A smallest spacing between the longitudinal axis extending through the center of the nozzle bore of the nozzle and the radially outer margin of the outer contour AK is observed in at least one axial direction and corresponds at a maximum to ¾ of the length of a largest spacing d between the central longitudinal axis extending through the center of the nozzle bore of the nozzle and the radial outer margin of the outer contour AK. A smallest spacing c can also correspond to a maximum of ⅜ of the length of a largest distance b between two points of the outer margin of the outer contour AK whose virtual straight connection line extends through the central longitudinal axis extending through the center of the nozzle bore of the nozzle.

A circuit for the control and identification of a plasma torch comprising an electronic circuit plate (100) provided with a microcontroller located next to the plasma cut torch (200), controlling and identifying the plasma torch (200) next to the central plate (30) of the device (300) by means of two wires (10) known as “network” which perform the communication between the circuit (100) and the power supply of the device (300) promoting monitoring and control of all the actions of the device, eliminating the need of various wires, solving the problems of frequent stops of the device due to breaking wires and eliminating difficulties to read the power of the plasma torch (200).

A welding-type control system including configurable hardware, a hardware configuration memory device that configures the configurable hardware when loaded with configuration data, a processor, an input portal via which the processor can receive a file with the configuration data, and a memory with instructions that when executed by the processor cause the processor to transfer the configuration data in the file to the memory device. A controlled system including such a welding-type control system includes a welding system, a cladding system or a plasma cutting system.

A plasma cutting system is provided. The system includes a torch tip having a proximal end and a distal end defining a longitudinal axis extending therethrough. The torch tip includes a plasma plenum and a plasma arc exit orifice located at the distal end of the torch tip. The system includes a lead having a distal end configured for connection to the proximal end of the torch tip. The system also includes an atmospheric vent port disposed between the plasma arc exit orifice and the distal end of the lead. The system further includes a conduit fluidly connecting the plasma plenum and the atmospheric vent port.

A plasma cutting system is provided. The system includes a torch tip having a proximal end and a distal end defining a longitudinal axis extending therethrough. The torch tip includes a plasma plenum and a plasma arc exit orifice located at the distal end of the torch tip. The system includes a lead having a distal end configured for connection to the proximal end of the torch tip. The system also includes an atmospheric vent port disposed between the plasma arc exit orifice and the distal end of the lead. The system further includes a conduit fluidly connecting the plasma plenum and the atmospheric vent port.

A power contact for a liquid-cooled plasma arc cutting system is provided. The cutting system includes a torch body and a lower torch assembly. The power contact comprises a substantially hollow body including an upper portion and a lower portion, and an external surface of the upper portion of the hollow body configured to matingly engage the torch body. The power contact further includes a thread region disposed on an internal surface of the hollow body. The thread region is configured to retain an electrode holder of the lower torch assembly of the plasma arc cutting system to matingly engage the lower torch assembly and secure the lower torch assembly to the torch body.