The 37x7 15KW Protective Lens is a fused-silica protective window sized at 37mm diameter x 7mm thickness. It is rated for fiber laser cutting heads running up to 15kW. It fits the process or collimation side of the head, forming a replaceable barrier that shields the internal focusing and collimation optics from spatter, smoke and thermal stress during cutting.
The 37x7mm format is one of the standard higher-power protective window sizes used across several fiber laser cutting head brands, produced in variants from around 10kW up to 30kW and beyond as thickness requirements scale with power. The 15kW-rated version sits in the mid-power range of this format. Like any protective window, it is a routine, sacrificial wear part meant to be replaced once pitting, haze or a drop in cut quality shows up, protecting the more expensive optics behind it.
A 37mm diameter x 7mm thickness fused-silica window rated to 15kW, sized to seat directly into a matching cutting head's process or collimation-side lens holder.
Protects the head's expensive focusing and collimation optics, helps maintain consistent cut quality, and keeps downtime and maintenance cost lower.
| Parameter | Correctly Sized 37x7 15KW Lens | Approximate / Mismatched Lens |
|---|---|---|
| Dimension Match | 37x7mm, exact | Close but not exact |
| Power Rating | Matched to 15kW class | Under-rated for the application |
| Seating in Holder | Sits flush, no gap | Loose fit or forced fit |
| Sealing | Consistent dust/spatter seal | Gaps can let debris through |
It is a sacrificial fused-silica window that protects the focusing and collimation optics inside a fiber laser cutting head from spatter, smoke and debris.
37mm diameter x 7mm thickness, rated for cutting heads running up to 15kW.
Fiber laser cutting heads specified for a 37x7mm process or collimation-side window. Confirm your head's lens holder size before ordering.
Replace it when you notice pitting, burn marks, haze or a drop in cut quality. In daily production it is a routine, frequently-changed consumable.
Yes, bulk quantities are available with a GST invoice for business buyers.
Confirm fitment and order the correctly sized 37x7 15KW Lens protective lens for your fiber laser cutting head, with bulk pricing and pan-India delivery.
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