A liquid jet cutting system, comprising: a pump; a cutting head fluidly connected to the pump, the cutting head comprising: a cutting head body; a plurality of replaceable components connected to the cutting head body and defining at least a portion of a conduit for receiving a liquid jet; characterised in that the cutting head further comprises: a plurality of readers disposed on the cutting head body; a plurality of signal devices assigned to respective ones of the plurality of replaceable components, wherein the plurality of signal devices are configured to communicate to the plurality of readers information associated with the corresponding replaceable components, wherein the information is encoded to one or more of the signal devices after use of the replaceable component; and a connector communicatively coupled to the plurality of readers, the connector being configured to transmit the information from the plurality of readers to a CNC or a PLC; and a computing device communicatively coupled to the plurality of readers for receiving the information from the reader, the information indicative of a size of opening of a nozzle of the liquid jet cutting system, the computing device configured to automatically adjusting a kerf setting by analyzing predicted wear of the nozzle opening. a pump; a cutting head fluidly connected to the pump, the cutting head comprising: a cutting head body; a plurality of replaceable components connected to the cutting head body and defining at least a portion of a conduit for receiving a liquid jet; characterised in that the cutting head further comprises: a plurality of readers disposed on the cutting head body; a plurality of signal devices assigned to respective ones of the plurality of replaceable components, wherein the plurality of signal devices are configured to communicate to the plurality of readers information associated with the corresponding replaceable components, wherein the information is encoded to one or more of the signal devices after use of the replaceable component; and a connector communicatively coupled to the plurality of readers, the connector being configured to transmit the information from the plurality of readers to a CNC or a PLC; and a cutting head body; a plurality of replaceable components connected to the cutting head body and defining at least a portion of a conduit for receiving a liquid jet; characterised in that the cutting head further comprises: a plurality of readers disposed on the cutting head body; a plurality of signal devices assigned to respective ones of the plurality of replaceable components, wherein the plurality of signal devices are configured to communicate to the plurality of readers information associated with the corresponding replaceable components, wherein the information is encoded to one or more of the signal devices after use of the replaceable component; and a connector communicatively coupled to the plurality of readers, the connector being configured to transmit the information from the plurality of readers to a CNC or a PLC; and a plurality of readers disposed on the cutting head body; a plurality of signal devices assigned to respective ones of the plurality of replaceable components, wherein the plurality of signal devices are configured to communicate to the plurality of readers information associated with the corresponding replaceable components, wherein the information is encoded to one or more of the signal devices after use of the replaceable component; and a connector communicatively coupled to the plurality of readers, the connector being configured to transmit the information from the plurality of readers to a CNC or a PLC; and a computing device communicatively coupled to the plurality of readers for receiving the information from the reader, the information indicative of a size of opening of a nozzle of the liquid jet cutting system, the computing device configured to automatically adjusting a kerf setting by analyzing predicted wear of the nozzle opening.