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34x5 mm protective lens designed for high-power 15KW fiber laser cutting applications, supporting reliable protection of the cutting head optics during demanding cutting operations.
34x5 15KW Protective Lens for Fiber Laser Cutting Heads
The 34x5 15KW Protective Lens is a fused-silica protective window sized at 34mm diameter x 5mm thickness, rated for fiber laser cutting heads running up to 15kW. It sits on 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 34x5 window size is produced across several power-rated variants - 6kW, 15kW, 20kW and higher - since the material grade and coating needed to withstand thermal stress scales with the power the machine runs at. The 15kW-rated version sits in the mid-power range of this format, built for heads and machines specified at that level. Its role is the same as any protective window: absorb the direct exposure to spatter and reflected energy so this low-cost, easily replaced part wears out instead of the more expensive optics behind it. It should be checked regularly and swapped once wear becomes visible rather than left in place indefinitely.
Key Features of the 34x5 15KW Protective Lens
Fused-silica (quartz) construction sized at 34mm diameter x 5mm thickness
Rated for fiber laser cutting heads up to 15kW
Fits heads specified for this diameter and thickness combination
Acts as a sacrificial barrier for the internal focus/collimation optics
Low-cost routine consumable, easy to inspect and replace
Suited to daily-use industrial cutting environments
Applications & Industries
High-Power Fiber Laser Sheet Metal Cutting Machines
Automotive & Auto-Component Manufacturing
Industrial Machinery & Fabrication Units
Metal Processing & Laser Job-Work Shops
Structural Steel & Heavy Fabrication
High-Power CNC Laser Cutting Operations
Benefits of the 34x5 15KW Protective Lens
Features
A 34mm x 5mm fused-silica window rated to 15kW, sized to seat directly into a matching cutting head's process or collimation-side lens holder.
Benefits
Protects the head's expensive focusing and collimation optics, helps maintain consistent cut quality, and keeps downtime and maintenance cost lower for mid-to-high-power machines.
How to Confirm You Need This Size
Check your cutting head's specified lens diameter and thickness against 34x5mm.
Confirm your machine's rated power falls within the 15kW class this lens covers.
Compare against the 6kW and 20kW versions of the same 34x5 size if unsure which power class you need.
Inspect the current window for pitting, haze or cracking before ordering.
Confirm fitment with the supplier before placing a bulk order.
Why Choose Us
Correctly sized 34x5mm fused-silica window, not an approximate fit
Ready stock for fast dispatch and reduced machine downtime
GST-registered supplier (GSTIN 24AFSFS3212F1Z2) with proper invoicing
Expert support for size and power-rating selection on WhatsApp
Bulk pricing and pan-India delivery from Ahmedabad, Gujarat
Correctly Sized 34x5 15KW Lens vs a Mismatched Lens
Parameter
Correctly Sized 34x5 15KW Lens
Approximate / Mismatched Lens
Dimension Match
34mm x 5mm, 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
Thermal Handling
Suited to the rated power
Higher risk of thermal stress damage
Frequently Asked Questions
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.
34mm diameter x 5mm thickness, rated for cutting heads running up to 15kW.
Fiber laser cutting heads specified for a 34x5mm process or collimation-side window rated to 15kW. 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.
Get the Right 34x5 15KW Protective Lens for Your Cutting Head
Confirm fitment and order the correctly sized 34x5, 15kW-rated protective lens for your fiber laser cutting head, with bulk pricing and pan-India delivery.
