Example product in this category. The studio background is retouched; the version and supplied items are confirmed on request.
Upper and lower protective windows for cutting and handheld welding. Coating and installation position matter as much as dimensions.
To select a window, we need the head model, window position, diameter and thickness. The packaging code helps distinguish optics with different power ratings.
A protective window separates the processing area from the internal optics. Contamination and damage can absorb energy and heat up, so window condition matters for stable head operation. It is a plane-parallel protective element, not a focusing lens.
Upper and lower windows protect different positions in the optical path. Size, coating and load rating must match the cassette and head. A darkened window calls for contamination and seal checks, not an arbitrary substitution with thicker glass.
| Example part / head | Window, mm | Selection reference |
|---|---|---|
| 211LCG0020 | Ø24.9 × 1.5 | BM111 upper window |
| 211LCG0037 | Ø27.9 × 4.1 | BM111 lower window |
| 211LCG0045 | Ø37 × 1.6 | Match cassette and code |
| 110255IAG0004 | Ø37 × 7 | Match cassette and code |
| SUP23T | Ø18 × 2 | Welding-head protective window |
Identify the required position: upper, lower or a welding-head window.
Check diameter, thickness, part number, coating and permitted power. Do not select by appearance alone.
Replace in clean conditions following the manufacturer's instructions, without touching optical surfaces. Inspect the cassette seals at the same time.
Send the machine and head model, photographs of the markings and part, its dimensions and the quantity required. If replacing a faulty assembly, briefly describe the symptoms. Price and lead time on request. We check compatibility and confirm the required version before ordering.
Tell us what you would like to clarify. Add drawings, photos or the required configuration reference to your request if available.
Select a part and request a price: Protective windows
Single-layer, double-layer and 3D nozzles for sheet and tube cutting. We match the mounting interface and aperture to your head and process.
Ceramics for nozzle mounting and capacitive height sensing. Selected by part number, geometry and head revision.
Internal optics for shaping the laser beam. Lenses, optical pairs and assemblies matched to the head's optical design.
