Plasma cutters are made up of many parts which need to be inspected at regular intervals and replaced when necessary. This will keep the your cutter in a safe condition and also giving high quality cuts. You will get a better quality of cut and extend the equipment useful life by using the ccorrect replacement parts.
In the nozzle head plasma cutters concentrate the gas and introduce a spark to turn this concentrated gas into plasma. The area around the plasma where it comes into contact with the metal is protected by inert or perhaps semi inert gases. There is sufficient force in the plasma to blow from the cut all of the molted metal. Temperatures up to 30,000oF are reached in the plasma, this combined with the force puts pressure on the nozzle head.
Box Cutter
The parts of plasma cutters which suffer from wear and tear: the shield, nozzle, electrode, and swirl ring all will last longer with proper maintenance.
The Electrode:
The plasma arc is powered by the electrode, this is the electrode's primary function.You can detect wear by the condition of the insert and the pit depth. Cut quality is reduced and possible plasma torch damage is caused by a worn electrode. The more usual cause is wrongly matched torch parts. However gas flow set incorrectly, gas impurities, build up of moisture, and gas leaks can also contribute to electrode wear.
The Nozzle:
Plasma cutter nozzles forces the plasma gas through a narrow tube with a round hole of a specific diameter at the tip increasing its speed and force. Damage to the nozzle is caused through misuse such as having the wrong cut distance, incorrect setting of plasma cutters, using incorrect replacement parts. A regular maintenance schedule and using only original equipment manufacturer (OEM) parts will prolong the useful life of plasma cutters.
The Shield:
As the name suggests the shield protects the parts of the nozzle from damage. With a hole which matches the one on the nozzle the more usual problem is damage from blocking clogging by splatter of this hole. Usually the debris or dross can be picked off however if the hole is damaged or is not longer round replacing the shield is necessary.
The Swirl Ring:
A swirling action around the electrode is created and controlled by the swirl ring. Cut quality is decreased, nozzle and electrode life is shortened when the gas flow is hampered by clogged swirl rings. With regular inspection and cleaning a swirl ring will need not be replaced through many nozzle changes.
A regular maintenance and replacement routine will extent the life of you plasma cutters parts which mostly commonly wear out. Follow the link in the resource box below to get more information about plasma cutters
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