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Aftermarket protective window for Raytools laser cutting heads. Replaces Raytools 211LCG0125. Size D37 x 7 mm, 30 kW. Fused silica, anti reflection coated on both faces for 1064 nm fiber lasers.
Fits BM06K, BM114, BM114S, BM115, BS08K, BS20K, BS30K. Sold in packs of 1, 5 or 10.
| Replaces | Raytools 211LCG0125 |
| Size | D37 x 7 mm, 30 kW |
| Power Rating | 30 kW |
| Material | Fused silica, AR coated both faces |
| Wavelength | 1064 nm |
| Pack Options | 1 pack, 5 pack, 10 pack |
| Pack | Dimensions | Raytools Part No.(SPM Part No.) | Fits |
|---|---|---|---|
| D37 x 7 mm, 30 kW | D37 x 7 mm, 30 kW | 211LCG0125(SPM-LAS-2127) | BM06K, BM114, BM114S, BM115, BS08K, BS20K, BS30K |
Routine changes
Replace the window when it shows spatter, pitting or burn marks. A dirty window absorbs power and can crack.
Protecting the focusing lens
The window keeps spatter and fume off the focusing lens above it.
Loss of cutting power
If piercing slows or the kerf widens, check the protective window before changing cutting parameters.
We check what other aftermarket sellers charge for this same part. Their prices on the date we checked:
| Seller | Price | Checked |
|---|---|---|
| Laser Consumables | USD 14.59 | 5 Oct 2026 |
| Quality Laser Supply | USD 20.00 | 8 Oct 2026 |
| LaserThings | USD 25.35 | 6 Oct 2026 |
| Spare Part Mart | USD 11.67 | Today |
Our price of USD 11.67 is 20% to 54% 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 your parts list, or measure the diameter and thickness. They 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.
Hold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical alcohol.
Prices depend on your postcode.
In USD for the quantity selected. The exact cost is confirmed at checkout.
