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Aftermarket protective window for Trumpf fiber laser cutting machines. Replaces Trumpf 0766719, the D30 x 5 mm protective glass.
This window is listed for the TruLaser 5000 fiber. It sits under the focusing optics and is the part that takes the spatter, so it is the optic you will change most often.
D30 x 5 mm fused silica, anti reflection coated on both faces for 1030 to 1090 nm solid state lasers. Sold in packs of 1, 5 or 10.
| Replaces | Trumpf 0766719 |
| Size | D30 x 5 mm |
| Power Rating | The supplied window is rated to 15 kW. |
| Material | Fused silica, AR coated both faces |
| Wavelength | 1064 nm fiber lasers |
| Pack Options | 1 pack, 5 pack, 10 pack |
| Pack | Dimensions | Trumpf Part No.(SPM Part No.) | Fits |
|---|---|---|---|
| D30 x 5 mm | D30 x 5 mm | 0766719(SPM-LAS-2162) | TruLaser 5000 |
Routine window changes
The protective window is the most frequently replaced optic in a cutting head. Change it at the first sign of spatter, pitting or a burn mark. A contaminated window absorbs laser power, heats up and can crack.
Protecting the focusing lens
The window sits between the focusing lens and the cut. Keeping it clean protects a lens that costs many times more and keeps the focal spot and cut width consistent.
Recovering lost cutting power
If piercing slows, the kerf widens or the machine needs more power for the same plate, inspect the window before changing parameters. A dirty window is the most common cause.
Stocking for every head in the shop
Single windows for an urgent change, 5 packs for a machine running one shift, 10 packs at the lowest price per piece for busy production lines.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| Laser Consumables | USD 11.02 | 5 Oct 2026 |
| LaserThings | USD 18.20 | 5 Oct 2026 |
| Spare Part Mart | USD 8.82 | Today |
Our price of USD 8.82 is 20% to 52% 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.
Check the part number on the old window's packaging or in your parts list, or measure the diameter and thickness of the window you are replacing. Both must match the size shown.
No. It is an aftermarket window made to the same size. The OEM part number is shown so you can match the window you are replacing.
It is the same window in each. The 10 pack has the lowest price per window and suits machines that change windows every shift.
Hold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical grade alcohol.
Yes. Shipping options and costs for your country are shown at checkout.
Prices depend on your ZIP or postcode.
Live rates for the quantity selected, delivered to your door. Confirmed at checkout.
