The 3250010324 is an OEM original, high-precision biconvex spherical focusing lens engineered specifically for RayTools fiber laser cutting and welding heads. Operating at a standard fiber laser wavelength of 1064nm, this optical component is optimized for medium-to-high power systems rated up to 6kW. Its primary function is to work in tandem with a matching meniscus lens to tightly converge the incoming parallel laser beam into a flawless, minimum-diameter focal point to deliver ultimate processing speeds and razor-sharp edge quality.Crafted from ultra-pure, high-transmittance JGS1 Quartz Fused Silica, the lens features an exceptional laser damage threshold and excellent mechanical durability. Both sides are treated with advanced, multi-layer anti-reflective (AR) coatings to minimize power absorption and ensure maximum light transmission. This superior thermal stability effectively eliminates focal shift, guaranteeing perfectly stable cutting paths and consistent processing quality during extended industrial workloads.