Handheld Laser Welding/Cleaning Optics — All Specifications (1 pc per variant)
    One product page for everything you need: protective windows, focusing lenses,
    collimating lenses and a cleaning dust cap for handheld welding/cleaning heads.
    
Each variant is supplied as 1 pc (single piece) — no multi-pack in this listing.
  
- Application: Handheld laser welding/cleaning heads (25A/26A series and compatible models)
 - Materials: Fused silica protective windows; AR-coated fused silica lenses
 - Wavelength: Optimized for 1064–1080 nm fiber-laser systems
 - Packing: 1 pc per variant, cleanroom packed
 - Maintenance tips: Replace windows regularly; keep lenses clean to maintain beam quality and gas protection
 
What’s included (model codes)
| Type | Codes | Notes | 
|---|---|---|
| Protective Window | D18T2, D20T2, D30T5; 25A-D30T3; 26A-D18T2 | Consumables; keep spare stock for stable protection | 
| Collimating Lens | D16T5F50, D16T5F60, D20T5F60; 25A-D30T4.5F75; 26A-D16T5F60 | Pre-focus beam shaping; verify seat/code before ordering | 
| Focusing Lens | 
          D20T4.5F150 / F200 / F400 / F600 / F800; D20T3.5F400 / F600 / F800; 25A-D30F200, 25A-D30T3.5F250 / F300; 26A-D20T4.5F150 / F200  | 
        Choose focal length to match your process and standoff | 
| Cleaning Dust Cap | DC34 | Protects the nozzle/optics during cleaning operations | 
How to choose
- Match the code to your original part (e.g., D18T2, D20T4.5F200). If your torch is 25A/26A, select the variant with that prefix.
 - Confirm seat/thread and optical path (collimating vs focusing) before purchasing.
 - Pack size: This listing ships 1 pc per variant. Need bulk packs? Contact us.
 
Care & handling
- Power off and allow to cool before replacement; avoid touching optical surfaces.
 - Use clean nitrile gloves and lens paper; do not scratch AR coatings.
 - Replace when contamination cannot be removed or performance degrades.
 
Note: Minor dimensional tolerances may exist across manufacturers. Please verify your head model and code before ordering.
Les frais de livraison sont calculés en fonction du poids. Ajoutez simplement les produits à votre panier et utilisez le calculateur de frais de livraison pour connaître le coût.
Nous souhaitons que vous soyez entièrement satisfait de votre achat. Les articles peuvent être retournés ou échangés dans les 30 jours suivant la livraison.