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Genuine Hypertherm Nozzle Extended. PLEASE NOTE: Although the breakdown (quite rightly!) advises this item is normally packed in packets of 5, our price quoted is per item, not per packet.
Straight answers to the questions people ask when choosing and fitting replacement consumables and spare parts for a plasma torch.
The electrode carries the current to the arc and is its starting point. The nozzle focuses the arc and gas through a small central orifice. The swirl ring spins the gas around the electrode to centre the arc and help cool the nozzle. The retaining cap holds the parts together, and the shield protects the torch from sparks and molten metal.The nozzle and electrode wear fastest and are normally changed together. Your torch manual shows exactly which parts your torch uses.
Consumables are made for particular current ranges. The nozzle orifice is sized for the current, and running a set well outside its range can burn it out quickly or spoil the cut. Gouging and fine-cutting nozzles also have different orifice sizes from standard cutting nozzles.If you cut across a wide range of currents you may need more than one set of consumables. Check the consumables chart in the maker's manual for the setting you use, and change sets when you change to a very different current.
Plasma consumables are specific to the torch and power source they were designed for, so match them to the torch model and cutting current shown in your manual. Check the markings on the torch and the data plate, and compare the part numbers on your existing nozzle, electrode and shield with the parts list.Parts that look alike can differ in orifice size, length or sealing faces, so do not rely on appearance alone. If you are unsure, our team can help you check.
Consumables are only one cause. The makers' troubleshooting guides point first to travel speed: too slow leaves thick dross along the bottom edge, while too fast leaves a small hard bead. Torch standoff height that is too high or too low and a cutting current that is wrong for the nozzle also cause dross.Adjust one setting at a time in small steps, using the cut chart in your manual. Also check that the parts are the right set for the current and are fitted correctly, and that your air supply is clean and dry.