{"product_id":"21-5-x-2mm-fibre-laser-protective-window-precitec-fit","title":"21.5 x 2mm Fibre Laser Protective Window — Precitec Fit","description":"\u003cp\u003e\u003cstrong\u003eRated to 20kW — genuine fused silica, not soda-lime glass.\u003c\/strong\u003e A direct-replacement upper protective window for Precitec-pattern fibre laser cutting heads, 21.5 mm diameter x 2 mm thick.\u003c\/p\u003e\u003cp\u003eThis is the top (collimator-side) protective window used across the Precitec ProCutter family and compatible Chinese ProCutter-pattern heads. It shields your collimating and focusing lenses from back-spatter and debris — the cheapest insurance in your cutting head.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDiameter: 21.5 mm — also written 21.5*2, D21.5x2, D21.5T2, FS21.5x2.0, and sometimes mislabelled 21 x 2\u003c\/li\u003e\n\u003cli\u003eThickness: 2 mm\u003c\/li\u003e\n\u003cli\u003eMaterial: JGS1 fused silica, double-sided AR coated for 1064 nm\u003c\/li\u003e\n\u003cli\u003ePower rating: up to 20 kW\u003c\/li\u003e\n\u003cli\u003eTransmission: greater than 99.7%\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCompatible cutting heads\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003ePrecitec:\u003c\/strong\u003e ProCutter 1.0, ProCutter 2.0, ProCutter Thunder, LightCutter and SolidCutter (upper window).\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eBOCI \/ BOCHU:\u003c\/strong\u003e BLT310, BLT420, BLT421, BLT441, BLT462, BLT641, BLT661, BLT662 and BLT831.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eOspri:\u003c\/strong\u003e LC201, LC218, LC80, LC608 and LC808.\u003c\/p\u003e\u003ch3\u003eOEM part numbers\u003c\/h3\u003e\u003cp\u003eDirect replacement for Precitec P0588-1022-00001, P0588-1022-00002, 633267-117 and reference 9800021520FS (OG Y D21.5 d2).\u003c\/p\u003e\u003cp\u003eNot sure it fits your head? Send us your machine and head model and we'll confirm the exact window before you buy.\u003c\/p\u003e\u003cp\u003eShipped fast Australia-wide from our Brisbane workshop.\u003c\/p\u003e","brand":"DK Machine Tech","offers":[{"title":"1","offer_id":67643813265507,"sku":"PW0002","price":15.95,"currency_code":"AUD","in_stock":true},{"title":"10","offer_id":67643813298275,"sku":"PW0002-10","price":143.55,"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\/21-5-x-2mm-fibre-laser-protective-window-precitec-fit","provider":"DK Machine Tech","version":"1.0","type":"link"}