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Trumpf 1254813 Aftermarket Protective Window, D134 x 3 mm
  • SKU: SPM-LAS-2165-P1
  • Availability: in stock Many in stock Out of stock In-stock at manufacturer. Please add 5-10 days to shipping time

Bystronic 10045746 Aftermarket Protective Window, D36 x 5 mm

$8.74 USD

Aftermarket bottom protective glass for Bystronic fiber laser cutting heads. Replaces Bystronic 10045746 (Glass ARQ1064.50.36).

This is the lower window under the focusing lens, the one that faces the cut. The same 36 x 5 mm glass is used in II-VI HIGHYAG BIMO cutting heads.

D36 x 5 mm fused silica, anti reflection coated on both faces for 1064 nm. Sold in packs of 1, 5 or 10.

Technical Properties & Sizes

Specifications
Replaces Bystronic 10045746
Size D36 x 5 mm
Material Fused silica, AR coated both faces
Wavelength 1064 nm fiber lasers
Also Listed As Glass ARQ1064.50.36
Pack Options 1 pack, 5 pack, 10 pack
Compatibility

Bystronic heads

Any Bystronic head using a D36 x 5 mm window

No complete head list is published for this size. Match the size and part number of the window you are replacing.

Find Your Size by Part Number
Pack Dimensions Bystronic Part No.(SPM Part No.)
D36 x 5 mm D36 x 5 mm 10045746(SPM-LAS-2165)

Applications & Use Cases

Routine window changes
The protective window is the most frequently replaced optic in a cutting head. Change it at the first sign of spatter, pitting or a burn mark. A contaminated window absorbs laser power, heats up and can crack.

Protecting the focusing lens
The window sits between the focusing lens and the cut. Keeping it clean protects a lens that costs many times more and keeps the focal spot and cut width consistent.

Recovering lost cutting power
If piercing slows, the kerf widens or the machine needs more power for the same plate, inspect the window before changing parameters. A dirty window is the most common cause.

Stocking for every head in the shop
Single windows for an urgent change, 5 packs for a machine running one shift, 10 packs at the lowest price per piece for busy production lines.

Price Beat Guarantee

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.

Frequently Asked Questions

How do I know this is the right window?

Check the part number on the old window's packaging or in your parts list, or measure the diameter and thickness of the window you are replacing. Both must match the size shown.

Is it a genuine part?

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.

1 pack, 5 pack or 10 pack?

It is the same window in each. The 10 pack has the lowest price per window and suits machines that change windows every shift.

How should I handle it?

Hold it by the edge with clean gloves and keep it in its case until fitting. Clean only with lens tissue and optical grade alcohol.

Do you ship worldwide?

Yes. Shipping options and costs for your country are shown at checkout.

Images and data are used as a guide and are deemed reliable to Spare Part Mart. Product may appear differently (e.g. colour) but will be as per the specs above. All cross references are deemed reliable to our knowledge. We encourage you to double check before ordering.

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