Ceramic rings for laser cutting heads
The ceramic ring is the wear part that electrically insulates the nozzle from the body of the laser cutting head. It is chosen according to the head model. We supply it as a genuine part, as the authorised ACME dealer in Romania.
- Role: Electrical insulator between nozzle and head body
- Selection: By cutting head model
- Category: Wear part
Product details
What the ring does
The ceramic ring sits at the lower end of the cutting head, directly below the TRA sensor: the nozzle screws into it, and the ceramic body insulates it electrically from the rest of the head.
The cutting gas also passes through the ring, on its way to the nozzle.
Material that withstands heat
According to the manufacturer, imported ceramic is combined with a special alloy that expands at the same rate when heated, so the part does not crack.
The ceramic and the metal ring are tightly joined, with a finely finished surface.
When to replace it
It is a wear part, like the nozzle or the protective lens in the same head. It is replaced when it cracks after an impact with the workpiece or from spatter thrown up during cutting, or when it no longer insulates the nozzle properly from the head body.
How it is chosen
The manufacturer states that the rings fit the cutting heads of the leading manufacturers, but does not name any. The correct version, with the right thread and height, is determined from your head model, not from a catalogue.
Questions about the Ceramic rings
Are ceramic rings interchangeable?
No. Each cutting head needs its own ring, because the thread and height differ from one head model to another. An unsuitable ring either will not screw in or will not insulate the nozzle properly.
How does the sensor signal pass through the ceramic ring?
Through two elements mounted in the ceramic body: a silver conductive adhesive and a gold-plated copper pin. According to the manufacturer, this assembly offers good electrical conductivity, high sensitivity, good tracking and effective insulation. The manufacturer adds that the design of the pin reduces the risk of the sensor being affected on impact.
Other parts we recommend
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Order ceramic rings
Tell us the model of the cutting head you use, or send us the removed ring if you have it to hand. We identify the correct version and confirm the fit before delivery. We will send you availability and price.
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