No Products in the Cart
Aftermarket protective window for Raytools laser cutting heads. Replaces Raytools 211LCG0037 (also 211LCG0039). Size D27.9 x 4.1 mm. Fused silica, anti reflection coated on both faces for 1064 nm fiber lasers.
Fits BD04K, BM109, BM110, BM111, BT210S, BT240S, BW03K. Sold in packs of 1, 5 or 10.
| Replaces | Raytools 211LCG0037, 211LCG0039 |
| Size | D27.9 x 4.1 mm |
| 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 |
|---|---|---|---|
| D27.9 x 4.1 mm | D27.9 x 4.1 mm | 211LCG0037 / 211LCG0039(SPM-LAS-2123) | BD04K, BM109, BM110, BM111, BT210S, BT240S, BW03K |
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.
Found this part cheaper elsewhere? Send us the listing and we will beat it 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.
