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Add lens tissue: $8.55 5% off with this part
Powder-Free Anti-Static Finger Cots for Handl...: Aftermarket ceramic insulating ring for Bystronic laser cutting heads. Replaces Bystronic 4-09010, the bottom insulating ring.
The insulating rings keep the nozzle body electrically separate from the rest of the head, so the capacitive height sensor reads the gap between the nozzle and the sheet and nothing else. A cracked or chipped ring shows up as height control faults or a nozzle that touches the sheet. The bottom ring 4-09010 is used with the top ring 4-01642 and the ceramic cone 4-01959.
Technical ceramic, 28 mm across with a 22 mm bore, 6.5 mm high. Sold in packs of 1, 5 or 10.
| Replaces | Bystronic 4-09010 |
| Outside Diameter | 28 mm |
| Inside Diameter | 22 mm |
| Height | 6.5 mm |
| Material | Technical ceramic (alumina) |
| Part | Insulating ring, bottom |
| Use | Bystronic Bystar, Bysprint and Byvention cutting heads |
| Pack Options | 1 pack, 5 pack, 10 pack |
| Stat. HS-Code | 846693 |
| Country of Manufacture | China |
Bystronic machines
Listed for these Bystronic machines by aftermarket suppliers of this part number. Check the number in your parts list.
| Pack | Dimensions | Bystronic Part No.(SPM Part No.) |
|---|---|---|
| 4-09010 | 28 mm | 4-09010(SPM-LAS-4506) |
After a head collision
A crash bends or cracks the parts at the bottom of the head first. A spare on the shelf gets the machine cutting again within minutes.
Nozzle will not centre
A worn seat or thread lets the nozzle sit off centre, which shows as cut quality that changes with direction. Replace the worn part before re-centring.
Planned maintenance
Check the bottom of the head at every nozzle change and replace parts that are pitted, burred or loose.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| LaserThings AU | USD 15.35 | 30 Oct 2026 |
| eBay, aftermarket seller | USD 19.12 | 30 Oct 2026 |
| Spare Part Mart | USD 12.28 | Today |
Our price of USD 12.28 is 20% to 36% less than these sellers.
Found this part cheaper somewhere else? Send us the listing and we will beat it by 5% under our Price Beat Guarantee. Every order is also covered by our 30 day money back guarantee.
Yes, it is a direct replacement for the Bystronic 4-09010 with the same fitting. If the number is worn off, it measures 28 mm across and 6.5 mm high.
Laser and plasma nozzles wear in days to weeks, depending on hours of arc or beam time, material and gas. Change it on condition, not by date.
An oval or nicked orifice, spatter stuck on the tip, more dross, a wider cut or bevel on one side, and height sensing errors.
Centre the nozzle on the beam and recalibrate the height sensor. A new nozzle off centre cuts on one side only.
Look at the orifice: if it is oval, nicked or has spatter stuck to it, the cut quality falls. Change it before it damages the parts behind it.
No. It is an aftermarket ceramic ring made to replace the Bystronic 4-09010. It is not made by the original manufacturer; the number only shows what it replaces.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
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