{"product_id":"20-x-3mm-fibre-laser-protective-window-6kw-handheld-welding-wsx-fit","title":"20 x 3mm Fibre Laser Protective Window — 6kW Handheld Welding, WSX, Raytools \u0026 Ospri Fit","description":"\u003cp\u003e\u003cstrong\u003eRated to 6kW — genuine fused silica, not soda-lime glass.\u003c\/strong\u003e This 20 x 3mm protective window (also written D20x3, D20*3 or D20T3) is built for high-power handheld fibre laser welding. The extra 3mm thickness handles higher heat loads, and its dual-sided anti-reflective coating protects your focusing optics and keeps weld quality consistent shift after shift. Also known as a protective lens, protection lens or cover slide.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDiameter: 20mm\u003c\/li\u003e\n\u003cli\u003eThickness: 3mm\u003c\/li\u003e\n\u003cli\u003eSize notations: 20x3, 20*3, D20x3, D20*3, D20T3, FS20x3\u003c\/li\u003e\n\u003cli\u003eMaterial: Fused silica (quartz)\u003c\/li\u003e\n\u003cli\u003ePower rating: Up to 6kW\u003c\/li\u003e\n\u003cli\u003eCoating: Dual-sided anti-reflective for 1064nm fibre laser wavelength\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatible handheld \u0026amp; welding heads\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRaytools handheld laser welding heads\u003c\/li\u003e\n\u003cli\u003eOspri handheld laser welding heads\u003c\/li\u003e\n\u003cli\u003eWSX D20T3 handheld welding heads\u003c\/li\u003e\n\u003cli\u003eHandheld fibre laser welding heads that take a 20 x 3mm protective window\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatible machine brands\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eBodor, HSG, DNE, Han's, G. Weike and Quick handheld laser welders\u003c\/li\u003e\u003c\/ul\u003e\u003cp\u003eNote: this is a 3mm thick window — check your current window before ordering, as some heads take the thinner 20 x 2 or the 18 x 2. Not sure if it fits your head? Send us your machine or head model and we'll confirm before you buy. Shipped fast Australia-wide from our Brisbane workshop.\u003c\/p\u003e","brand":"DK Machine Tech","offers":[{"title":"1","offer_id":67732799127651,"sku":"PW0013","price":9.95,"currency_code":"AUD","in_stock":true},{"title":"10","offer_id":67732799160419,"sku":"PW0013-10","price":89.55,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0638\/8508\/2723\/files\/ProtectiveWindow1_0ad3db51-be5c-4d74-bbfa-c0289cbb4093.png?v=1750125985","url":"https:\/\/dkmachinetech.com\/products\/20-x-3mm-fibre-laser-protective-window-6kw-handheld-welding-wsx-fit","provider":"DK Machine Tech","version":"1.0","type":"link"}